# HG changeset patch
# User amurillo
# Date 1405063194 25200
# Node ID d952af8cf67dd1e7ab5fec9a299c6c6dafd1863e
# Parent  b67a3f81b6308414339842e3e58fb4ad216e2449# Parent  5fbeae2a02d3b708928f76cff49e9541549140c5
Merge

diff -r b67a3f81b630 -r d952af8cf67d make/hotspot_version
--- a/make/hotspot_version	Fri Jun 27 11:07:23 2014 +0100
+++ b/make/hotspot_version	Fri Jul 11 00:19:54 2014 -0700
@@ -34,8 +34,8 @@
 HOTSPOT_VM_COPYRIGHT=Copyright 2014
 
 HS_MAJOR_VER=25
-HS_MINOR_VER=20
-HS_BUILD_NUMBER=20
+HS_MINOR_VER=40
+HS_BUILD_NUMBER=01
 
 JDK_MAJOR_VER=1
 JDK_MINOR_VER=8
diff -r b67a3f81b630 -r d952af8cf67d src/cpu/zero/vm/cppInterpreter_zero.cpp
--- a/src/cpu/zero/vm/cppInterpreter_zero.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/cpu/zero/vm/cppInterpreter_zero.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -40,6 +40,7 @@
 #include "runtime/deoptimization.hpp"
 #include "runtime/frame.inline.hpp"
 #include "runtime/interfaceSupport.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/sharedRuntime.hpp"
 #include "runtime/stubRoutines.hpp"
 #include "runtime/synchronizer.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/os/aix/vm/os_aix.cpp
--- a/src/os/aix/vm/os_aix.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os/aix/vm/os_aix.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -55,6 +55,7 @@
 #include "runtime/javaCalls.hpp"
 #include "runtime/mutexLocker.hpp"
 #include "runtime/objectMonitor.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/osThread.hpp"
 #include "runtime/perfMemory.hpp"
 #include "runtime/sharedRuntime.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/os/aix/vm/os_aix.inline.hpp
--- a/src/os/aix/vm/os_aix.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os/aix/vm/os_aix.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -26,12 +26,9 @@
 #ifndef OS_AIX_VM_OS_AIX_INLINE_HPP
 #define OS_AIX_VM_OS_AIX_INLINE_HPP
 
-#include "runtime/atomic.hpp"
+#include "runtime/atomic.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/os.hpp"
-#ifdef TARGET_OS_ARCH_aix_ppc
-# include "atomic_aix_ppc.inline.hpp"
-# include "orderAccess_aix_ppc.inline.hpp"
-#endif
 
 // System includes
 
diff -r b67a3f81b630 -r d952af8cf67d src/os/aix/vm/thread_aix.inline.hpp
--- a/src/os/aix/vm/thread_aix.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os/aix/vm/thread_aix.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -26,15 +26,9 @@
 #ifndef OS_AIX_VM_THREAD_AIX_INLINE_HPP
 #define OS_AIX_VM_THREAD_AIX_INLINE_HPP
 
-#include "runtime/atomic.hpp"
-#include "runtime/prefetch.hpp"
 #include "runtime/thread.hpp"
 #include "runtime/threadLocalStorage.hpp"
 
-#include "atomic_aix_ppc.inline.hpp"
-#include "orderAccess_aix_ppc.inline.hpp"
-#include "prefetch_aix_ppc.inline.hpp"
-
 // Contains inlined functions for class Thread and ThreadLocalStorage
 
 inline void ThreadLocalStorage::pd_invalidate_all() {} // nothing to do
diff -r b67a3f81b630 -r d952af8cf67d src/os/bsd/vm/os_bsd.cpp
--- a/src/os/bsd/vm/os_bsd.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os/bsd/vm/os_bsd.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -48,6 +48,7 @@
 #include "runtime/javaCalls.hpp"
 #include "runtime/mutexLocker.hpp"
 #include "runtime/objectMonitor.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/osThread.hpp"
 #include "runtime/perfMemory.hpp"
 #include "runtime/sharedRuntime.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/os/bsd/vm/os_bsd.inline.hpp
--- a/src/os/bsd/vm/os_bsd.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os/bsd/vm/os_bsd.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -26,15 +26,9 @@
 #define OS_BSD_VM_OS_BSD_INLINE_HPP
 
 #include "runtime/atomic.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/os.hpp"
 
-#ifdef TARGET_OS_ARCH_bsd_x86
-# include "orderAccess_bsd_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_bsd_zero
-# include "orderAccess_bsd_zero.inline.hpp"
-#endif
-
 // System includes
 
 #include <unistd.h>
diff -r b67a3f81b630 -r d952af8cf67d src/os/bsd/vm/thread_bsd.inline.hpp
--- a/src/os/bsd/vm/thread_bsd.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os/bsd/vm/thread_bsd.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -29,20 +29,8 @@
 #error "This file should only be included from thread.inline.hpp"
 #endif
 
-#include "runtime/atomic.hpp"
-#include "runtime/prefetch.hpp"
 #include "runtime/thread.hpp"
 #include "runtime/threadLocalStorage.hpp"
-#ifdef TARGET_OS_ARCH_bsd_x86
-# include "atomic_bsd_x86.inline.hpp"
-# include "orderAccess_bsd_x86.inline.hpp"
-# include "prefetch_bsd_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_bsd_zero
-# include "atomic_bsd_zero.inline.hpp"
-# include "orderAccess_bsd_zero.inline.hpp"
-# include "prefetch_bsd_zero.inline.hpp"
-#endif
 
 // Contains inlined functions for class Thread and ThreadLocalStorage
 
diff -r b67a3f81b630 -r d952af8cf67d src/os/linux/vm/os_linux.cpp
--- a/src/os/linux/vm/os_linux.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os/linux/vm/os_linux.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -49,6 +49,7 @@
 #include "runtime/javaCalls.hpp"
 #include "runtime/mutexLocker.hpp"
 #include "runtime/objectMonitor.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/osThread.hpp"
 #include "runtime/perfMemory.hpp"
 #include "runtime/sharedRuntime.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/os/linux/vm/os_linux.inline.hpp
--- a/src/os/linux/vm/os_linux.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os/linux/vm/os_linux.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -26,24 +26,9 @@
 #define OS_LINUX_VM_OS_LINUX_INLINE_HPP
 
 #include "runtime/atomic.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/os.hpp"
 
-#ifdef TARGET_OS_ARCH_linux_x86
-# include "orderAccess_linux_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_sparc
-# include "orderAccess_linux_sparc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_zero
-# include "orderAccess_linux_zero.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_arm
-# include "orderAccess_linux_arm.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_ppc
-# include "orderAccess_linux_ppc.inline.hpp"
-#endif
-
 // System includes
 
 #include <unistd.h>
diff -r b67a3f81b630 -r d952af8cf67d src/os/linux/vm/thread_linux.inline.hpp
--- a/src/os/linux/vm/thread_linux.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os/linux/vm/thread_linux.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -29,35 +29,8 @@
 #error "This file should only be included from thread.inline.hpp"
 #endif
 
-#include "runtime/atomic.hpp"
-#include "runtime/prefetch.hpp"
 #include "runtime/thread.hpp"
 #include "runtime/threadLocalStorage.hpp"
-#ifdef TARGET_OS_ARCH_linux_x86
-# include "atomic_linux_x86.inline.hpp"
-# include "orderAccess_linux_x86.inline.hpp"
-# include "prefetch_linux_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_sparc
-# include "atomic_linux_sparc.inline.hpp"
-# include "orderAccess_linux_sparc.inline.hpp"
-# include "prefetch_linux_sparc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_zero
-# include "atomic_linux_zero.inline.hpp"
-# include "orderAccess_linux_zero.inline.hpp"
-# include "prefetch_linux_zero.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_arm
-# include "atomic_linux_arm.inline.hpp"
-# include "orderAccess_linux_arm.inline.hpp"
-# include "prefetch_linux_arm.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_ppc
-# include "atomic_linux_ppc.inline.hpp"
-# include "orderAccess_linux_ppc.inline.hpp"
-# include "prefetch_linux_ppc.inline.hpp"
-#endif
 
 // Contains inlined functions for class Thread and ThreadLocalStorage
 
diff -r b67a3f81b630 -r d952af8cf67d src/os/solaris/vm/os_solaris.cpp
--- a/src/os/solaris/vm/os_solaris.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os/solaris/vm/os_solaris.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -48,6 +48,7 @@
 #include "runtime/javaCalls.hpp"
 #include "runtime/mutexLocker.hpp"
 #include "runtime/objectMonitor.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/osThread.hpp"
 #include "runtime/perfMemory.hpp"
 #include "runtime/sharedRuntime.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/os/solaris/vm/os_solaris.inline.hpp
--- a/src/os/solaris/vm/os_solaris.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os/solaris/vm/os_solaris.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -26,15 +26,9 @@
 #define OS_SOLARIS_VM_OS_SOLARIS_INLINE_HPP
 
 #include "runtime/atomic.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/os.hpp"
 
-#ifdef TARGET_OS_ARCH_solaris_x86
-# include "orderAccess_solaris_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_solaris_sparc
-# include "orderAccess_solaris_sparc.inline.hpp"
-#endif
-
 // System includes
 #include <sys/param.h>
 #include <dlfcn.h>
diff -r b67a3f81b630 -r d952af8cf67d src/os/solaris/vm/thread_solaris.inline.hpp
--- a/src/os/solaris/vm/thread_solaris.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os/solaris/vm/thread_solaris.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -29,20 +29,9 @@
 #error "This file should only be included from thread.inline.hpp"
 #endif
 
-#include "runtime/atomic.hpp"
-#include "runtime/prefetch.hpp"
+#include "runtime/atomic.inline.hpp"
 #include "runtime/thread.hpp"
 #include "runtime/threadLocalStorage.hpp"
-#ifdef TARGET_OS_ARCH_solaris_x86
-# include "atomic_solaris_x86.inline.hpp"
-# include "orderAccess_solaris_x86.inline.hpp"
-# include "prefetch_solaris_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_solaris_sparc
-# include "atomic_solaris_sparc.inline.hpp"
-# include "orderAccess_solaris_sparc.inline.hpp"
-# include "prefetch_solaris_sparc.inline.hpp"
-#endif
 
 // Thread::current is "hot" it's called > 128K times in the 1st 500 msecs of
 // startup.
diff -r b67a3f81b630 -r d952af8cf67d src/os/windows/vm/os_windows.cpp
--- a/src/os/windows/vm/os_windows.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os/windows/vm/os_windows.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -51,6 +51,7 @@
 #include "runtime/javaCalls.hpp"
 #include "runtime/mutexLocker.hpp"
 #include "runtime/objectMonitor.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/osThread.hpp"
 #include "runtime/perfMemory.hpp"
 #include "runtime/sharedRuntime.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/os/windows/vm/os_windows.inline.hpp
--- a/src/os/windows/vm/os_windows.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os/windows/vm/os_windows.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -26,12 +26,9 @@
 #define OS_WINDOWS_VM_OS_WINDOWS_INLINE_HPP
 
 #include "runtime/atomic.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/os.hpp"
 
-#ifdef TARGET_OS_ARCH_windows_x86
-# include "orderAccess_windows_x86.inline.hpp"
-#endif
-
 inline const char* os::file_separator()                { return "\\"; }
 inline const char* os::line_separator()                { return "\r\n"; }
 inline const char* os::path_separator()                { return ";"; }
diff -r b67a3f81b630 -r d952af8cf67d src/os/windows/vm/thread_windows.inline.hpp
--- a/src/os/windows/vm/thread_windows.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os/windows/vm/thread_windows.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -29,15 +29,8 @@
 #error "This file should only be included from thread.inline.hpp"
 #endif
 
-#include "runtime/atomic.hpp"
-#include "runtime/prefetch.hpp"
 #include "runtime/thread.hpp"
 #include "runtime/threadLocalStorage.hpp"
-#ifdef TARGET_OS_ARCH_windows_x86
-# include "atomic_windows_x86.inline.hpp"
-# include "orderAccess_windows_x86.inline.hpp"
-# include "prefetch_windows_x86.inline.hpp"
-#endif
 
 // Contains inlined functions for class Thread and ThreadLocalStorage
 
diff -r b67a3f81b630 -r d952af8cf67d src/os_cpu/aix_ppc/vm/atomic_aix_ppc.inline.hpp
--- a/src/os_cpu/aix_ppc/vm/atomic_aix_ppc.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os_cpu/aix_ppc/vm/atomic_aix_ppc.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -26,7 +26,6 @@
 #ifndef OS_CPU_AIX_OJDKPPC_VM_ATOMIC_AIX_PPC_INLINE_HPP
 #define OS_CPU_AIX_OJDKPPC_VM_ATOMIC_AIX_PPC_INLINE_HPP
 
-#include "orderAccess_aix_ppc.inline.hpp"
 #include "runtime/atomic.hpp"
 #include "runtime/os.hpp"
 #include "vm_version_ppc.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/os_cpu/linux_ppc/vm/atomic_linux_ppc.inline.hpp
--- a/src/os_cpu/linux_ppc/vm/atomic_linux_ppc.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os_cpu/linux_ppc/vm/atomic_linux_ppc.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -26,7 +26,6 @@
 #ifndef OS_CPU_LINUX_PPC_VM_ATOMIC_LINUX_PPC_INLINE_HPP
 #define OS_CPU_LINUX_PPC_VM_ATOMIC_LINUX_PPC_INLINE_HPP
 
-#include "orderAccess_linux_ppc.inline.hpp"
 #include "runtime/atomic.hpp"
 #include "runtime/os.hpp"
 #include "vm_version_ppc.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/os_cpu/linux_sparc/vm/vm_version_linux_sparc.cpp
--- a/src/os_cpu/linux_sparc/vm/vm_version_linux_sparc.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/os_cpu/linux_sparc/vm/vm_version_linux_sparc.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -55,7 +55,7 @@
 
   if (detect_niagara()) {
     NOT_PRODUCT(if (PrintMiscellaneous && Verbose) tty->print_cr("Detected Linux on Niagara");)
-    features = niagara1_m;
+    features = niagara1_m | T_family_m;
   }
 
   return features;
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/c1/c1_GraphBuilder.cpp
--- a/src/share/vm/c1/c1_GraphBuilder.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/c1/c1_GraphBuilder.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -1569,6 +1569,7 @@
         default:
           constant = new Constant(as_ValueType(field_val));
         }
+        // Stable static fields are checked for non-default values in ciField::initialize_from().
       }
       if (constant != NULL) {
         push(type, append(constant));
@@ -1610,6 +1611,10 @@
             default:
               constant = new Constant(as_ValueType(field_val));
             }
+            if (FoldStableValues && field->is_stable() && field_val.is_null_or_zero()) {
+              // Stable field with default value can't be constant.
+              constant = NULL;
+            }
           } else {
             // For CallSite objects treat the target field as a compile time constant.
             if (const_oop->is_call_site()) {
@@ -1993,7 +1998,13 @@
   if (!UseInlineCaches && is_loaded && code == Bytecodes::_invokevirtual
       && !target->can_be_statically_bound()) {
     // Find a vtable index if one is available
-    vtable_index = target->resolve_vtable_index(calling_klass, callee_holder);
+    // For arrays, callee_holder is Object. Resolving the call with
+    // Object would allow an illegal call to finalize() on an
+    // array. We use holder instead: illegal calls to finalize() won't
+    // be compiled as vtable calls (IC call resolution will catch the
+    // illegal call) and the few legal calls on array types won't be
+    // either.
+    vtable_index = target->resolve_vtable_index(calling_klass, holder);
   }
 #endif
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/ci/ciEnv.cpp
--- a/src/share/vm/ci/ciEnv.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/ci/ciEnv.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -51,6 +51,7 @@
 #include "runtime/init.hpp"
 #include "runtime/reflection.hpp"
 #include "runtime/sharedRuntime.hpp"
+#include "runtime/thread.inline.hpp"
 #include "utilities/dtrace.hpp"
 #include "utilities/macros.hpp"
 #ifdef COMPILER1
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/classfile/classFileParser.cpp
--- a/src/share/vm/classfile/classFileParser.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/classfile/classFileParser.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -4022,6 +4022,11 @@
     this_klass->set_major_version(major_version);
     this_klass->set_has_default_methods(has_default_methods);
 
+    if (!host_klass.is_null()) {
+      assert (this_klass->is_anonymous(), "should be the same");
+      this_klass->set_host_klass(host_klass());
+    }
+
     // Set up Method*::intrinsic_id as soon as we know the names of methods.
     // (We used to do this lazily, but now we query it in Rewriter,
     // which is eagerly done for every method, so we might as well do it now,
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/classfile/classLoaderData.cpp
--- a/src/share/vm/classfile/classLoaderData.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/classfile/classLoaderData.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -531,6 +531,7 @@
 // GC root of class loader data created.
 ClassLoaderData* ClassLoaderDataGraph::_head = NULL;
 ClassLoaderData* ClassLoaderDataGraph::_unloading = NULL;
+ClassLoaderData* ClassLoaderDataGraph::_saved_unloading = NULL;
 ClassLoaderData* ClassLoaderDataGraph::_saved_head = NULL;
 
 bool ClassLoaderDataGraph::_should_purge = false;
@@ -628,7 +629,9 @@
 
 void ClassLoaderDataGraph::classes_unloading_do(void f(Klass* const)) {
   assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint!");
-  for (ClassLoaderData* cld = _unloading; cld != NULL; cld = cld->next()) {
+  // Only walk the head until any clds not purged from prior unloading
+  // (CMS doesn't purge right away).
+  for (ClassLoaderData* cld = _unloading; cld != _saved_unloading; cld = cld->next()) {
     cld->classes_do(f);
   }
 }
@@ -676,6 +679,11 @@
   ClassLoaderData* data = _head;
   ClassLoaderData* prev = NULL;
   bool seen_dead_loader = false;
+
+  // Save previous _unloading pointer for CMS which may add to unloading list before
+  // purging and we don't want to rewalk the previously unloaded class loader data.
+  _saved_unloading = _unloading;
+
   // mark metadata seen on the stack and code cache so we can delete
   // unneeded entries.
   bool has_redefined_a_class = JvmtiExport::has_redefined_a_class();
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/classfile/classLoaderData.hpp
--- a/src/share/vm/classfile/classLoaderData.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/classfile/classLoaderData.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -66,6 +66,7 @@
   static ClassLoaderData* _unloading;
   // CMS support.
   static ClassLoaderData* _saved_head;
+  static ClassLoaderData* _saved_unloading;
   static bool _should_purge;
 
   static ClassLoaderData* add(Handle class_loader, bool anonymous, TRAPS);
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/classfile/dictionary.cpp
--- a/src/share/vm/classfile/dictionary.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/classfile/dictionary.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -28,6 +28,7 @@
 #include "memory/iterator.hpp"
 #include "oops/oop.inline.hpp"
 #include "prims/jvmtiRedefineClassesTrace.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "utilities/hashtable.inline.hpp"
 
 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/classfile/systemDictionary.cpp
--- a/src/share/vm/classfile/systemDictionary.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/classfile/systemDictionary.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -52,6 +52,7 @@
 #include "runtime/java.hpp"
 #include "runtime/javaCalls.hpp"
 #include "runtime/mutexLocker.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/signature.hpp"
 #include "services/classLoadingService.hpp"
 #include "services/threadService.hpp"
@@ -997,7 +998,6 @@
 
   if (host_klass.not_null() && k.not_null()) {
     assert(EnableInvokeDynamic, "");
-    k->set_host_klass(host_klass());
     // If it's anonymous, initialize it now, since nobody else will.
 
     {
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/classfile/verifier.cpp
--- a/src/share/vm/classfile/verifier.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/classfile/verifier.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -43,7 +43,7 @@
 #include "runtime/handles.inline.hpp"
 #include "runtime/interfaceSupport.hpp"
 #include "runtime/javaCalls.hpp"
-#include "runtime/orderAccess.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/os.hpp"
 #ifdef TARGET_ARCH_x86
 # include "bytes_x86.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/code/dependencies.cpp
--- a/src/share/vm/code/dependencies.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/code/dependencies.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -32,6 +32,7 @@
 #include "oops/oop.inline.hpp"
 #include "runtime/handles.hpp"
 #include "runtime/handles.inline.hpp"
+#include "runtime/thread.inline.hpp"
 #include "utilities/copy.hpp"
 
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/code/nmethod.cpp
--- a/src/share/vm/code/nmethod.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/code/nmethod.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -37,6 +37,7 @@
 #include "oops/methodData.hpp"
 #include "prims/jvmtiRedefineClassesTrace.hpp"
 #include "prims/jvmtiImpl.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/sharedRuntime.hpp"
 #include "runtime/sweeper.hpp"
 #include "utilities/dtrace.hpp"
@@ -688,8 +689,10 @@
     _hotness_counter         = NMethodSweeper::hotness_counter_reset_val();
 
     code_buffer->copy_values_to(this);
-    if (ScavengeRootsInCode && detect_scavenge_root_oops()) {
-      CodeCache::add_scavenge_root_nmethod(this);
+    if (ScavengeRootsInCode) {
+      if (detect_scavenge_root_oops()) {
+        CodeCache::add_scavenge_root_nmethod(this);
+      }
       Universe::heap()->register_nmethod(this);
     }
     debug_only(verify_scavenge_root_oops());
@@ -773,8 +776,10 @@
     _hotness_counter         = NMethodSweeper::hotness_counter_reset_val();
 
     code_buffer->copy_values_to(this);
-    if (ScavengeRootsInCode && detect_scavenge_root_oops()) {
-      CodeCache::add_scavenge_root_nmethod(this);
+    if (ScavengeRootsInCode) {
+      if (detect_scavenge_root_oops()) {
+        CodeCache::add_scavenge_root_nmethod(this);
+      }
       Universe::heap()->register_nmethod(this);
     }
     DEBUG_ONLY(verify_scavenge_root_oops();)
@@ -889,8 +894,10 @@
     code_buffer->copy_values_to(this);
     debug_info->copy_to(this);
     dependencies->copy_to(this);
-    if (ScavengeRootsInCode && detect_scavenge_root_oops()) {
-      CodeCache::add_scavenge_root_nmethod(this);
+    if (ScavengeRootsInCode) {
+      if (detect_scavenge_root_oops()) {
+        CodeCache::add_scavenge_root_nmethod(this);
+      }
       Universe::heap()->register_nmethod(this);
     }
     debug_only(verify_scavenge_root_oops());
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp
--- a/src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -33,12 +33,14 @@
 #include "memory/allocation.inline.hpp"
 #include "memory/blockOffsetTable.inline.hpp"
 #include "memory/resourceArea.hpp"
+#include "memory/space.inline.hpp"
 #include "memory/universe.inline.hpp"
 #include "oops/oop.inline.hpp"
 #include "runtime/globals.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/init.hpp"
 #include "runtime/java.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/vmThread.hpp"
 #include "utilities/copy.hpp"
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp
--- a/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -59,6 +59,7 @@
 #include "runtime/globals_extension.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/java.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/vmThread.hpp"
 #include "services/memoryService.hpp"
 #include "services/runtimeService.hpp"
@@ -1999,7 +2000,7 @@
   SerialOldTracer* gc_tracer = GenMarkSweep::gc_tracer();
   gc_tracer->report_gc_start(gch->gc_cause(), gc_timer->gc_start());
 
-  GCTraceTime t("CMS:MSC ", PrintGCDetails && Verbose, true, NULL);
+  GCTraceTime t("CMS:MSC ", PrintGCDetails && Verbose, true, NULL, gc_tracer->gc_id());
   if (PrintGC && Verbose && !(GCCause::is_user_requested_gc(gch->gc_cause()))) {
     gclog_or_tty->print_cr("Compact ConcurrentMarkSweepGeneration after %d "
       "collections passed to foreground collector", _full_gcs_since_conc_gc);
@@ -2509,8 +2510,10 @@
   assert(ConcurrentMarkSweepThread::vm_thread_has_cms_token(),
          "VM thread should have CMS token");
 
+  // The gc id is created in register_foreground_gc_start if this collection is synchronous
+  const GCId gc_id = _collectorState == InitialMarking ? GCId::peek() : _gc_tracer_cm->gc_id();
   NOT_PRODUCT(GCTraceTime t("CMS:MS (foreground) ", PrintGCDetails && Verbose,
-    true, NULL);)
+    true, NULL, gc_id);)
   if (UseAdaptiveSizePolicy) {
     size_policy()->ms_collection_begin();
   }
@@ -3527,6 +3530,7 @@
  public:
   CMSPhaseAccounting(CMSCollector *collector,
                      const char *phase,
+                     const GCId gc_id,
                      bool print_cr = true);
   ~CMSPhaseAccounting();
 
@@ -3535,6 +3539,7 @@
   const char *_phase;
   elapsedTimer _wallclock;
   bool _print_cr;
+  const GCId _gc_id;
 
  public:
   // Not MT-safe; so do not pass around these StackObj's
@@ -3550,15 +3555,15 @@
 
 CMSPhaseAccounting::CMSPhaseAccounting(CMSCollector *collector,
                                        const char *phase,
+                                       const GCId gc_id,
                                        bool print_cr) :
-  _collector(collector), _phase(phase), _print_cr(print_cr) {
+  _collector(collector), _phase(phase), _print_cr(print_cr), _gc_id(gc_id) {
 
   if (PrintCMSStatistics != 0) {
     _collector->resetYields();
   }
   if (PrintGCDetails) {
-    gclog_or_tty->date_stamp(PrintGCDateStamps);
-    gclog_or_tty->stamp(PrintGCTimeStamps);
+    gclog_or_tty->gclog_stamp(_gc_id);
     gclog_or_tty->print_cr("[%s-concurrent-%s-start]",
       _collector->cmsGen()->short_name(), _phase);
   }
@@ -3572,8 +3577,7 @@
   _collector->stopTimer();
   _wallclock.stop();
   if (PrintGCDetails) {
-    gclog_or_tty->date_stamp(PrintGCDateStamps);
-    gclog_or_tty->stamp(PrintGCTimeStamps);
+    gclog_or_tty->gclog_stamp(_gc_id);
     gclog_or_tty->print("[%s-concurrent-%s: %3.3f/%3.3f secs]",
                  _collector->cmsGen()->short_name(),
                  _phase, _collector->timerValue(), _wallclock.seconds());
@@ -3671,7 +3675,7 @@
   setup_cms_unloading_and_verification_state();
 
   NOT_PRODUCT(GCTraceTime t("\ncheckpointRootsInitialWork",
-    PrintGCDetails && Verbose, true, _gc_timer_cm);)
+    PrintGCDetails && Verbose, true, _gc_timer_cm, _gc_tracer_cm->gc_id());)
   if (UseAdaptiveSizePolicy) {
     size_policy()->checkpoint_roots_initial_begin();
   }
@@ -3796,7 +3800,7 @@
 
     CMSTokenSyncWithLocks ts(true, bitMapLock());
     TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
-    CMSPhaseAccounting pa(this, "mark", !PrintGCDetails);
+    CMSPhaseAccounting pa(this, "mark", _gc_tracer_cm->gc_id(), !PrintGCDetails);
     res = markFromRootsWork(asynch);
     if (res) {
       _collectorState = Precleaning;
@@ -4519,7 +4523,7 @@
       _start_sampling = false;
     }
     TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
-    CMSPhaseAccounting pa(this, "preclean", !PrintGCDetails);
+    CMSPhaseAccounting pa(this, "preclean", _gc_tracer_cm->gc_id(), !PrintGCDetails);
     preclean_work(CMSPrecleanRefLists1, CMSPrecleanSurvivors1);
   }
   CMSTokenSync x(true); // is cms thread
@@ -4548,7 +4552,7 @@
   // we will never do an actual abortable preclean cycle.
   if (get_eden_used() > CMSScheduleRemarkEdenSizeThreshold) {
     TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
-    CMSPhaseAccounting pa(this, "abortable-preclean", !PrintGCDetails);
+    CMSPhaseAccounting pa(this, "abortable-preclean", _gc_tracer_cm->gc_id(), !PrintGCDetails);
     // We need more smarts in the abortable preclean
     // loop below to deal with cases where allocation
     // in young gen is very very slow, and our precleaning
@@ -4693,7 +4697,7 @@
     GCTimer *gc_timer = NULL; // Currently not tracing concurrent phases
     rp->preclean_discovered_references(
           rp->is_alive_non_header(), &keep_alive, &complete_trace, &yield_cl,
-          gc_timer);
+          gc_timer, _gc_tracer_cm->gc_id());
   }
 
   if (clean_survivor) {  // preclean the active survivor space(s)
@@ -5036,7 +5040,7 @@
       // expect it to be false and set to true
       FlagSetting fl(gch->_is_gc_active, false);
       NOT_PRODUCT(GCTraceTime t("Scavenge-Before-Remark",
-        PrintGCDetails && Verbose, true, _gc_timer_cm);)
+        PrintGCDetails && Verbose, true, _gc_timer_cm, _gc_tracer_cm->gc_id());)
       int level = _cmsGen->level() - 1;
       if (level >= 0) {
         gch->do_collection(true,        // full (i.e. force, see below)
@@ -5065,7 +5069,7 @@
 void CMSCollector::checkpointRootsFinalWork(bool asynch,
   bool clear_all_soft_refs, bool init_mark_was_synchronous) {
 
-  NOT_PRODUCT(GCTraceTime tr("checkpointRootsFinalWork", PrintGCDetails, false, _gc_timer_cm);)
+  NOT_PRODUCT(GCTraceTime tr("checkpointRootsFinalWork", PrintGCDetails, false, _gc_timer_cm, _gc_tracer_cm->gc_id());)
 
   assert(haveFreelistLocks(), "must have free list locks");
   assert_lock_strong(bitMapLock());
@@ -5120,11 +5124,11 @@
       // the most recent young generation GC, minus those cleaned up by the
       // concurrent precleaning.
       if (CMSParallelRemarkEnabled && CollectedHeap::use_parallel_gc_threads()) {
-        GCTraceTime t("Rescan (parallel) ", PrintGCDetails, false, _gc_timer_cm);
+        GCTraceTime t("Rescan (parallel) ", PrintGCDetails, false, _gc_timer_cm, _gc_tracer_cm->gc_id());
         do_remark_parallel();
       } else {
         GCTraceTime t("Rescan (non-parallel) ", PrintGCDetails, false,
-                    _gc_timer_cm);
+                    _gc_timer_cm, _gc_tracer_cm->gc_id());
         do_remark_non_parallel();
       }
     }
@@ -5137,7 +5141,7 @@
   verify_overflow_empty();
 
   {
-    NOT_PRODUCT(GCTraceTime ts("refProcessingWork", PrintGCDetails, false, _gc_timer_cm);)
+    NOT_PRODUCT(GCTraceTime ts("refProcessingWork", PrintGCDetails, false, _gc_timer_cm, _gc_tracer_cm->gc_id());)
     refProcessingWork(asynch, clear_all_soft_refs);
   }
   verify_work_stacks_empty();
@@ -5922,7 +5926,7 @@
                               NULL,  // space is set further below
                               &_markBitMap, &_markStack, &mrias_cl);
   {
-    GCTraceTime t("grey object rescan", PrintGCDetails, false, _gc_timer_cm);
+    GCTraceTime t("grey object rescan", PrintGCDetails, false, _gc_timer_cm, _gc_tracer_cm->gc_id());
     // Iterate over the dirty cards, setting the corresponding bits in the
     // mod union table.
     {
@@ -5959,7 +5963,7 @@
     Universe::verify();
   }
   {
-    GCTraceTime t("root rescan", PrintGCDetails, false, _gc_timer_cm);
+    GCTraceTime t("root rescan", PrintGCDetails, false, _gc_timer_cm, _gc_tracer_cm->gc_id());
 
     verify_work_stacks_empty();
 
@@ -5981,7 +5985,7 @@
   }
 
   {
-    GCTraceTime t("visit unhandled CLDs", PrintGCDetails, false, _gc_timer_cm);
+    GCTraceTime t("visit unhandled CLDs", PrintGCDetails, false, _gc_timer_cm, _gc_tracer_cm->gc_id());
 
     verify_work_stacks_empty();
 
@@ -6000,7 +6004,7 @@
   }
 
   {
-    GCTraceTime t("dirty klass scan", PrintGCDetails, false, _gc_timer_cm);
+    GCTraceTime t("dirty klass scan", PrintGCDetails, false, _gc_timer_cm, _gc_tracer_cm->gc_id());
 
     verify_work_stacks_empty();
 
@@ -6202,7 +6206,7 @@
                                 _span, &_markBitMap, &_markStack,
                                 &cmsKeepAliveClosure, false /* !preclean */);
   {
-    GCTraceTime t("weak refs processing", PrintGCDetails, false, _gc_timer_cm);
+    GCTraceTime t("weak refs processing", PrintGCDetails, false, _gc_timer_cm, _gc_tracer_cm->gc_id());
 
     ReferenceProcessorStats stats;
     if (rp->processing_is_mt()) {
@@ -6227,13 +6231,15 @@
                                         &cmsKeepAliveClosure,
                                         &cmsDrainMarkingStackClosure,
                                         &task_executor,
-                                        _gc_timer_cm);
+                                        _gc_timer_cm,
+                                        _gc_tracer_cm->gc_id());
     } else {
       stats = rp->process_discovered_references(&_is_alive_closure,
                                         &cmsKeepAliveClosure,
                                         &cmsDrainMarkingStackClosure,
                                         NULL,
-                                        _gc_timer_cm);
+                                        _gc_timer_cm,
+                                        _gc_tracer_cm->gc_id());
     }
     _gc_tracer_cm->report_gc_reference_stats(stats);
 
@@ -6244,7 +6250,7 @@
 
   if (should_unload_classes()) {
     {
-      GCTraceTime t("class unloading", PrintGCDetails, false, _gc_timer_cm);
+      GCTraceTime t("class unloading", PrintGCDetails, false, _gc_timer_cm, _gc_tracer_cm->gc_id());
 
       // Unload classes and purge the SystemDictionary.
       bool purged_class = SystemDictionary::do_unloading(&_is_alive_closure);
@@ -6257,7 +6263,7 @@
     }
 
     {
-      GCTraceTime t("scrub symbol table", PrintGCDetails, false, _gc_timer_cm);
+      GCTraceTime t("scrub symbol table", PrintGCDetails, false, _gc_timer_cm, _gc_tracer_cm->gc_id());
       // Clean up unreferenced symbols in symbol table.
       SymbolTable::unlink();
     }
@@ -6266,7 +6272,7 @@
   // CMS doesn't use the StringTable as hard roots when class unloading is turned off.
   // Need to check if we really scanned the StringTable.
   if ((roots_scanning_options() & SharedHeap::SO_Strings) == 0) {
-    GCTraceTime t("scrub string table", PrintGCDetails, false, _gc_timer_cm);
+    GCTraceTime t("scrub string table", PrintGCDetails, false, _gc_timer_cm, _gc_tracer_cm->gc_id());
     // Delete entries for dead interned strings.
     StringTable::unlink(&_is_alive_closure);
   }
@@ -6333,7 +6339,7 @@
   _intra_sweep_timer.start();
   if (asynch) {
     TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
-    CMSPhaseAccounting pa(this, "sweep", !PrintGCDetails);
+    CMSPhaseAccounting pa(this, "sweep", _gc_tracer_cm->gc_id(), !PrintGCDetails);
     // First sweep the old gen
     {
       CMSTokenSyncWithLocks ts(true, _cmsGen->freelistLock(),
@@ -6554,7 +6560,7 @@
     // Clear the mark bitmap (no grey objects to start with)
     // for the next cycle.
     TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
-    CMSPhaseAccounting cmspa(this, "reset", !PrintGCDetails);
+    CMSPhaseAccounting cmspa(this, "reset", _gc_tracer_cm->gc_id(), !PrintGCDetails);
 
     HeapWord* curAddr = _markBitMap.startWord();
     while (curAddr < _markBitMap.endWord()) {
@@ -6620,7 +6626,7 @@
 void CMSCollector::do_CMS_operation(CMS_op_type op, GCCause::Cause gc_cause) {
   gclog_or_tty->date_stamp(PrintGC && PrintGCDateStamps);
   TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
-  GCTraceTime t(GCCauseString("GC", gc_cause), PrintGC, !PrintGCDetails, NULL);
+  GCTraceTime t(GCCauseString("GC", gc_cause), PrintGC, !PrintGCDetails, NULL, _gc_tracer_cm->gc_id());
   TraceCollectorStats tcs(counters());
 
   switch (op) {
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/concurrentMarkSweep/vmCMSOperations.cpp
--- a/src/share/vm/gc_implementation/concurrentMarkSweep/vmCMSOperations.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/concurrentMarkSweep/vmCMSOperations.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -64,7 +64,7 @@
 void VM_CMS_Operation::verify_before_gc() {
   if (VerifyBeforeGC &&
       GenCollectedHeap::heap()->total_collections() >= VerifyGCStartAt) {
-    GCTraceTime tm("Verify Before", false, false, _collector->_gc_timer_cm);
+    GCTraceTime tm("Verify Before", false, false, _collector->_gc_timer_cm, _collector->_gc_tracer_cm->gc_id());
     HandleMark hm;
     FreelistLocker x(_collector);
     MutexLockerEx  y(_collector->bitMapLock(), Mutex::_no_safepoint_check_flag);
@@ -76,7 +76,7 @@
 void VM_CMS_Operation::verify_after_gc() {
   if (VerifyAfterGC &&
       GenCollectedHeap::heap()->total_collections() >= VerifyGCStartAt) {
-    GCTraceTime tm("Verify After", false, false, _collector->_gc_timer_cm);
+    GCTraceTime tm("Verify After", false, false, _collector->_gc_timer_cm, _collector->_gc_tracer_cm->gc_id());
     HandleMark hm;
     FreelistLocker x(_collector);
     MutexLockerEx  y(_collector->bitMapLock(), Mutex::_no_safepoint_check_flag);
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/g1/concurrentG1RefineThread.cpp
--- a/src/share/vm/gc_implementation/g1/concurrentG1RefineThread.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/g1/concurrentG1RefineThread.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -71,6 +71,7 @@
 }
 
 void ConcurrentG1RefineThread::sample_young_list_rs_lengths() {
+  SuspendibleThreadSetJoiner sts;
   G1CollectedHeap* g1h = G1CollectedHeap::heap();
   G1CollectorPolicy* g1p = g1h->g1_policy();
   if (g1p->adaptive_young_list_length()) {
@@ -82,8 +83,8 @@
 
       // we try to yield every time we visit 10 regions
       if (regions_visited == 10) {
-        if (_sts.should_yield()) {
-          _sts.yield("G1 refine");
+        if (sts.should_yield()) {
+          sts.yield();
           // we just abandon the iteration
           break;
         }
@@ -99,9 +100,7 @@
   DirtyCardQueueSet& dcqs = JavaThread::dirty_card_queue_set();
   _vtime_start = os::elapsedVTime();
   while(!_should_terminate) {
-    _sts.join();
     sample_young_list_rs_lengths();
-    _sts.leave();
 
     if (os::supports_vtime()) {
       _vtime_accum = (os::elapsedVTime() - _vtime_start);
@@ -182,37 +181,37 @@
       break;
     }
 
-    _sts.join();
+    {
+      SuspendibleThreadSetJoiner sts;
+
+      do {
+        int curr_buffer_num = (int)dcqs.completed_buffers_num();
+        // If the number of the buffers falls down into the yellow zone,
+        // that means that the transition period after the evacuation pause has ended.
+        if (dcqs.completed_queue_padding() > 0 && curr_buffer_num <= cg1r()->yellow_zone()) {
+          dcqs.set_completed_queue_padding(0);
+        }
 
-    do {
-      int curr_buffer_num = (int)dcqs.completed_buffers_num();
-      // If the number of the buffers falls down into the yellow zone,
-      // that means that the transition period after the evacuation pause has ended.
-      if (dcqs.completed_queue_padding() > 0 && curr_buffer_num <= cg1r()->yellow_zone()) {
-        dcqs.set_completed_queue_padding(0);
-      }
+        if (_worker_id > 0 && curr_buffer_num <= _deactivation_threshold) {
+          // If the number of the buffer has fallen below our threshold
+          // we should deactivate. The predecessor will reactivate this
+          // thread should the number of the buffers cross the threshold again.
+          deactivate();
+          break;
+        }
 
-      if (_worker_id > 0 && curr_buffer_num <= _deactivation_threshold) {
-        // If the number of the buffer has fallen below our threshold
-        // we should deactivate. The predecessor will reactivate this
-        // thread should the number of the buffers cross the threshold again.
+        // Check if we need to activate the next thread.
+        if (_next != NULL && !_next->is_active() && curr_buffer_num > _next->_threshold) {
+          _next->activate();
+        }
+      } while (dcqs.apply_closure_to_completed_buffer(_worker_id + _worker_id_offset, cg1r()->green_zone()));
+
+      // We can exit the loop above while being active if there was a yield request.
+      if (is_active()) {
         deactivate();
-        break;
       }
-
-      // Check if we need to activate the next thread.
-      if (_next != NULL && !_next->is_active() && curr_buffer_num > _next->_threshold) {
-        _next->activate();
-      }
-    } while (dcqs.apply_closure_to_completed_buffer(_worker_id + _worker_id_offset, cg1r()->green_zone()));
-
-    // We can exit the loop above while being active if there was a yield request.
-    if (is_active()) {
-      deactivate();
     }
 
-    _sts.leave();
-
     if (os::supports_vtime()) {
       _vtime_accum = (os::elapsedVTime() - _vtime_start);
     } else {
@@ -223,17 +222,6 @@
   terminate();
 }
 
-
-void ConcurrentG1RefineThread::yield() {
-  if (G1TraceConcRefinement) {
-    gclog_or_tty->print_cr("G1-Refine-yield");
-  }
-  _sts.yield("G1 refine");
-  if (G1TraceConcRefinement) {
-    gclog_or_tty->print_cr("G1-Refine-yield-end");
-  }
-}
-
 void ConcurrentG1RefineThread::stop() {
   // it is ok to take late safepoints here, if needed
   {
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/g1/concurrentG1RefineThread.hpp
--- a/src/share/vm/gc_implementation/g1/concurrentG1RefineThread.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/g1/concurrentG1RefineThread.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -64,9 +64,6 @@
   void activate();
   void deactivate();
 
-  // For use by G1CollectedHeap, which is a friend.
-  static SuspendibleThreadSet* sts() { return &_sts; }
-
 public:
   virtual void run();
   // Constructor
@@ -84,8 +81,6 @@
 
   ConcurrentG1Refine* cg1r() { return _cg1r;     }
 
-  // Yield for GC
-  void yield();
   // shutdown
   void stop();
 };
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/g1/concurrentMark.cpp
--- a/src/share/vm/gc_implementation/g1/concurrentMark.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/g1/concurrentMark.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -45,6 +45,7 @@
 #include "oops/oop.inline.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/java.hpp"
+#include "runtime/prefetch.inline.hpp"
 #include "services/memTracker.hpp"
 
 // Concurrent marking bit map wrapper
@@ -510,6 +511,7 @@
   _has_overflown(false),
   _concurrent(false),
   _has_aborted(false),
+  _aborted_gc_id(GCId::undefined()),
   _restart_for_overflow(false),
   _concurrent_marking_in_progress(false),
 
@@ -976,13 +978,13 @@
   }
 
   if (concurrent()) {
-    ConcurrentGCThread::stsLeave();
+    SuspendibleThreadSet::leave();
   }
 
   bool barrier_aborted = !_first_overflow_barrier_sync.enter();
 
   if (concurrent()) {
-    ConcurrentGCThread::stsJoin();
+    SuspendibleThreadSet::join();
   }
   // at this point everyone should have synced up and not be doing any
   // more work
@@ -1019,8 +1021,7 @@
       force_overflow()->update();
 
       if (G1Log::fine()) {
-        gclog_or_tty->date_stamp(PrintGCDateStamps);
-        gclog_or_tty->stamp(PrintGCTimeStamps);
+        gclog_or_tty->gclog_stamp(concurrent_gc_id());
         gclog_or_tty->print_cr("[GC concurrent-mark-reset-for-overflow]");
       }
     }
@@ -1036,13 +1037,13 @@
   }
 
   if (concurrent()) {
-    ConcurrentGCThread::stsLeave();
+    SuspendibleThreadSet::leave();
   }
 
   bool barrier_aborted = !_second_overflow_barrier_sync.enter();
 
   if (concurrent()) {
-    ConcurrentGCThread::stsJoin();
+    SuspendibleThreadSet::join();
   }
   // at this point everything should be re-initialized and ready to go
 
@@ -1094,7 +1095,7 @@
 
     double start_vtime = os::elapsedVTime();
 
-    ConcurrentGCThread::stsJoin();
+    SuspendibleThreadSet::join();
 
     assert(worker_id < _cm->active_tasks(), "invariant");
     CMTask* the_task = _cm->task(worker_id);
@@ -1121,9 +1122,9 @@
         if (!_cm->has_aborted() && the_task->has_aborted()) {
           sleep_time_ms =
             (jlong) (elapsed_vtime_sec * _cm->sleep_factor() * 1000.0);
-          ConcurrentGCThread::stsLeave();
+          SuspendibleThreadSet::leave();
           os::sleep(Thread::current(), sleep_time_ms, false);
-          ConcurrentGCThread::stsJoin();
+          SuspendibleThreadSet::join();
         }
         double end_time2_sec = os::elapsedTime();
         double elapsed_time2_sec = end_time2_sec - start_time_sec;
@@ -1141,7 +1142,7 @@
     the_task->record_end_time();
     guarantee(!the_task->has_aborted() || _cm->has_aborted(), "invariant");
 
-    ConcurrentGCThread::stsLeave();
+    SuspendibleThreadSet::leave();
 
     double end_vtime = os::elapsedVTime();
     _cm->update_accum_task_vtime(worker_id, end_vtime - start_vtime);
@@ -2464,7 +2465,7 @@
     if (G1Log::finer()) {
       gclog_or_tty->put(' ');
     }
-    GCTraceTime t("GC ref-proc", G1Log::finer(), false, g1h->gc_timer_cm());
+    GCTraceTime t("GC ref-proc", G1Log::finer(), false, g1h->gc_timer_cm(), concurrent_gc_id());
 
     ReferenceProcessor* rp = g1h->ref_processor_cm();
 
@@ -2521,7 +2522,8 @@
                                           &g1_keep_alive,
                                           &g1_drain_mark_stack,
                                           executor,
-                                          g1h->gc_timer_cm());
+                                          g1h->gc_timer_cm(),
+                                          concurrent_gc_id());
     g1h->gc_tracer_cm()->report_gc_reference_stats(stats);
 
     // The do_oop work routines of the keep_alive and drain_marking_stack
@@ -3252,6 +3254,12 @@
   }
   _first_overflow_barrier_sync.abort();
   _second_overflow_barrier_sync.abort();
+  const GCId& gc_id = _g1h->gc_tracer_cm()->gc_id();
+  if (!gc_id.is_undefined()) {
+    // We can do multiple full GCs before ConcurrentMarkThread::run() gets a chance
+    // to detect that it was aborted. Only keep track of the first GC id that we aborted.
+    _aborted_gc_id = gc_id;
+   }
   _has_aborted = true;
 
   SATBMarkQueueSet& satb_mq_set = JavaThread::satb_mark_queue_set();
@@ -3266,6 +3274,13 @@
   _g1h->register_concurrent_cycle_end();
 }
 
+const GCId& ConcurrentMark::concurrent_gc_id() {
+  if (has_aborted()) {
+    return _aborted_gc_id;
+  }
+  return _g1h->gc_tracer_cm()->gc_id();
+}
+
 static void print_ms_time_info(const char* prefix, const char* name,
                                NumberSeq& ns) {
   gclog_or_tty->print_cr("%s%5d %12s: total time = %8.2f s (avg = %8.2f ms).",
@@ -3322,21 +3337,17 @@
 
 // We take a break if someone is trying to stop the world.
 bool ConcurrentMark::do_yield_check(uint worker_id) {
-  if (should_yield()) {
+  if (SuspendibleThreadSet::should_yield()) {
     if (worker_id == 0) {
       _g1h->g1_policy()->record_concurrent_pause();
     }
-    cmThread()->yield();
+    SuspendibleThreadSet::yield();
     return true;
   } else {
     return false;
   }
 }
 
-bool ConcurrentMark::should_yield() {
-  return cmThread()->should_yield();
-}
-
 bool ConcurrentMark::containing_card_is_marked(void* p) {
   size_t offset = pointer_delta(p, _g1h->reserved_region().start(), 1);
   return _card_bm.at(offset >> CardTableModRefBS::card_shift);
@@ -3625,7 +3636,7 @@
 #endif // _MARKING_STATS_
 
   // (4) We check whether we should yield. If we have to, then we abort.
-  if (_cm->should_yield()) {
+  if (SuspendibleThreadSet::should_yield()) {
     // We should yield. To do this we abort the task. The caller is
     // responsible for yielding.
     set_has_aborted();
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/g1/concurrentMark.hpp
--- a/src/share/vm/gc_implementation/g1/concurrentMark.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/g1/concurrentMark.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -26,6 +26,7 @@
 #define SHARE_VM_GC_IMPLEMENTATION_G1_CONCURRENTMARK_HPP
 
 #include "gc_implementation/g1/heapRegionSet.hpp"
+#include "gc_implementation/shared/gcId.hpp"
 #include "utilities/taskqueue.hpp"
 
 class G1CollectedHeap;
@@ -444,6 +445,7 @@
   volatile bool           _concurrent;
   // set at the end of a Full GC so that marking aborts
   volatile bool           _has_aborted;
+  GCId                    _aborted_gc_id;
 
   // used when remark aborts due to an overflow to indicate that
   // another concurrent marking phase should start
@@ -818,13 +820,14 @@
   }
 
   inline bool do_yield_check(uint worker_i = 0);
-  inline bool should_yield();
 
   // Called to abort the marking cycle after a Full GC takes palce.
   void abort();
 
   bool has_aborted()      { return _has_aborted; }
 
+  const GCId& concurrent_gc_id();
+
   // This prints the global/local fingers. It is used for debugging.
   NOT_PRODUCT(void print_finger();)
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/g1/concurrentMarkThread.cpp
--- a/src/share/vm/gc_implementation/g1/concurrentMarkThread.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/g1/concurrentMarkThread.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -1,4 +1,4 @@
-/*
+ /*
  * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -29,6 +29,7 @@
 #include "gc_implementation/g1/g1Log.hpp"
 #include "gc_implementation/g1/g1MMUTracker.hpp"
 #include "gc_implementation/g1/vm_operations_g1.hpp"
+#include "gc_implementation/shared/gcTrace.hpp"
 #include "memory/resourceArea.hpp"
 #include "runtime/vmThread.hpp"
 
@@ -109,8 +110,7 @@
       double scan_start = os::elapsedTime();
       if (!cm()->has_aborted()) {
         if (G1Log::fine()) {
-          gclog_or_tty->date_stamp(PrintGCDateStamps);
-          gclog_or_tty->stamp(PrintGCTimeStamps);
+          gclog_or_tty->gclog_stamp(cm()->concurrent_gc_id());
           gclog_or_tty->print_cr("[GC concurrent-root-region-scan-start]");
         }
 
@@ -118,8 +118,7 @@
 
         double scan_end = os::elapsedTime();
         if (G1Log::fine()) {
-          gclog_or_tty->date_stamp(PrintGCDateStamps);
-          gclog_or_tty->stamp(PrintGCTimeStamps);
+          gclog_or_tty->gclog_stamp(cm()->concurrent_gc_id());
           gclog_or_tty->print_cr("[GC concurrent-root-region-scan-end, %1.7lf secs]",
                                  scan_end - scan_start);
         }
@@ -127,8 +126,7 @@
 
       double mark_start_sec = os::elapsedTime();
       if (G1Log::fine()) {
-        gclog_or_tty->date_stamp(PrintGCDateStamps);
-        gclog_or_tty->stamp(PrintGCTimeStamps);
+        gclog_or_tty->gclog_stamp(cm()->concurrent_gc_id());
         gclog_or_tty->print_cr("[GC concurrent-mark-start]");
       }
 
@@ -151,8 +149,7 @@
           }
 
           if (G1Log::fine()) {
-            gclog_or_tty->date_stamp(PrintGCDateStamps);
-            gclog_or_tty->stamp(PrintGCTimeStamps);
+            gclog_or_tty->gclog_stamp(cm()->concurrent_gc_id());
             gclog_or_tty->print_cr("[GC concurrent-mark-end, %1.7lf secs]",
                                       mark_end_sec - mark_start_sec);
           }
@@ -167,8 +164,7 @@
                                    "in remark (restart #%d).", iter);
           }
           if (G1Log::fine()) {
-            gclog_or_tty->date_stamp(PrintGCDateStamps);
-            gclog_or_tty->stamp(PrintGCTimeStamps);
+            gclog_or_tty->gclog_stamp(cm()->concurrent_gc_id());
             gclog_or_tty->print_cr("[GC concurrent-mark-restart-for-overflow]");
           }
         }
@@ -194,9 +190,8 @@
       } else {
         // We don't want to update the marking status if a GC pause
         // is already underway.
-        _sts.join();
+        SuspendibleThreadSetJoiner sts;
         g1h->set_marking_complete();
-        _sts.leave();
       }
 
       // Check if cleanup set the free_regions_coming flag. If it
@@ -212,8 +207,7 @@
 
         double cleanup_start_sec = os::elapsedTime();
         if (G1Log::fine()) {
-          gclog_or_tty->date_stamp(PrintGCDateStamps);
-          gclog_or_tty->stamp(PrintGCTimeStamps);
+          gclog_or_tty->gclog_stamp(cm()->concurrent_gc_id());
           gclog_or_tty->print_cr("[GC concurrent-cleanup-start]");
         }
 
@@ -233,8 +227,7 @@
 
         double cleanup_end_sec = os::elapsedTime();
         if (G1Log::fine()) {
-          gclog_or_tty->date_stamp(PrintGCDateStamps);
-          gclog_or_tty->stamp(PrintGCTimeStamps);
+          gclog_or_tty->gclog_stamp(cm()->concurrent_gc_id());
           gclog_or_tty->print_cr("[GC concurrent-cleanup-end, %1.7lf secs]",
                                  cleanup_end_sec - cleanup_start_sec);
         }
@@ -266,46 +259,43 @@
       // record_concurrent_mark_cleanup_completed() (and, in fact, it's
       // not needed any more as the concurrent mark state has been
       // already reset).
-      _sts.join();
-      if (!cm()->has_aborted()) {
-        g1_policy->record_concurrent_mark_cleanup_completed();
+      {
+        SuspendibleThreadSetJoiner sts;
+        if (!cm()->has_aborted()) {
+          g1_policy->record_concurrent_mark_cleanup_completed();
+        }
       }
-      _sts.leave();
 
       if (cm()->has_aborted()) {
         if (G1Log::fine()) {
-          gclog_or_tty->date_stamp(PrintGCDateStamps);
-          gclog_or_tty->stamp(PrintGCTimeStamps);
+          gclog_or_tty->gclog_stamp(cm()->concurrent_gc_id());
           gclog_or_tty->print_cr("[GC concurrent-mark-abort]");
         }
       }
 
       // We now want to allow clearing of the marking bitmap to be
       // suspended by a collection pause.
-      _sts.join();
-      _cm->clearNextBitmap();
-      _sts.leave();
+      {
+        SuspendibleThreadSetJoiner sts;
+        _cm->clearNextBitmap();
+      }
     }
 
     // Update the number of full collections that have been
     // completed. This will also notify the FullGCCount_lock in case a
     // Java thread is waiting for a full GC to happen (e.g., it
     // called System.gc() with +ExplicitGCInvokesConcurrent).
-    _sts.join();
-    g1h->increment_old_marking_cycles_completed(true /* concurrent */);
-    g1h->register_concurrent_cycle_end();
-    _sts.leave();
+    {
+      SuspendibleThreadSetJoiner sts;
+      g1h->increment_old_marking_cycles_completed(true /* concurrent */);
+      g1h->register_concurrent_cycle_end();
+    }
   }
   assert(_should_terminate, "just checking");
 
   terminate();
 }
 
-
-void ConcurrentMarkThread::yield() {
-  _sts.yield("Concurrent Mark");
-}
-
 void ConcurrentMarkThread::stop() {
   {
     MutexLockerEx ml(Terminator_lock);
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/g1/concurrentMarkThread.hpp
--- a/src/share/vm/gc_implementation/g1/concurrentMarkThread.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/g1/concurrentMarkThread.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -89,9 +89,6 @@
   // that started() is set and set in_progress().
   bool during_cycle()      { return started() || in_progress(); }
 
-  // Yield for GC
-  void            yield();
-
   // shutdown
   void stop();
 };
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/g1/g1AllocRegion.cpp
--- a/src/share/vm/gc_implementation/g1/g1AllocRegion.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/g1/g1AllocRegion.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -25,6 +25,7 @@
 #include "precompiled.hpp"
 #include "gc_implementation/g1/g1AllocRegion.inline.hpp"
 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 
 G1CollectedHeap* G1AllocRegion::_g1h = NULL;
 HeapRegion* G1AllocRegion::_dummy_region = NULL;
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -60,6 +60,8 @@
 #include "memory/referenceProcessor.hpp"
 #include "oops/oop.inline.hpp"
 #include "oops/oop.pcgc.inline.hpp"
+#include "runtime/prefetch.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/vmThread.hpp"
 #include "utilities/ticks.hpp"
 
@@ -96,15 +98,13 @@
 // Local to this file.
 
 class RefineCardTableEntryClosure: public CardTableEntryClosure {
-  SuspendibleThreadSet* _sts;
   G1RemSet* _g1rs;
   ConcurrentG1Refine* _cg1r;
   bool _concurrent;
 public:
-  RefineCardTableEntryClosure(SuspendibleThreadSet* sts,
-                              G1RemSet* g1rs,
+  RefineCardTableEntryClosure(G1RemSet* g1rs,
                               ConcurrentG1Refine* cg1r) :
-    _sts(sts), _g1rs(g1rs), _cg1r(cg1r), _concurrent(true)
+    _g1rs(g1rs), _cg1r(cg1r), _concurrent(true)
   {}
   bool do_card_ptr(jbyte* card_ptr, uint worker_i) {
     bool oops_into_cset = _g1rs->refine_card(card_ptr, worker_i, false);
@@ -113,7 +113,7 @@
     // that point into the collection set.
     assert(!oops_into_cset, "should be");
 
-    if (_concurrent && _sts->should_yield()) {
+    if (_concurrent && SuspendibleThreadSet::should_yield()) {
       // Caller will actually yield.
       return false;
     }
@@ -1305,7 +1305,7 @@
     TraceCPUTime tcpu(G1Log::finer(), true, gclog_or_tty);
 
     {
-      GCTraceTime t(GCCauseString("Full GC", gc_cause()), G1Log::fine(), true, NULL);
+      GCTraceTime t(GCCauseString("Full GC", gc_cause()), G1Log::fine(), true, NULL, gc_tracer->gc_id());
       TraceCollectorStats tcs(g1mm()->full_collection_counters());
       TraceMemoryManagerStats tms(true /* fullGC */, gc_cause());
 
@@ -2113,8 +2113,7 @@
   g1_policy()->init();
 
   _refine_cte_cl =
-    new RefineCardTableEntryClosure(ConcurrentG1RefineThread::sts(),
-                                    g1_rem_set(),
+    new RefineCardTableEntryClosure(g1_rem_set(),
                                     concurrent_g1_refine());
   JavaThread::dirty_card_queue_set().set_closure(_refine_cte_cl);
 
@@ -3893,8 +3892,7 @@
     return;
   }
 
-  gclog_or_tty->date_stamp(PrintGCDateStamps);
-  gclog_or_tty->stamp(PrintGCTimeStamps);
+  gclog_or_tty->gclog_stamp(_gc_tracer_stw->gc_id());
 
   GCCauseString gc_cause_str = GCCauseString("GC pause", gc_cause())
     .append(g1_policy()->gcs_are_young() ? "(young)" : "(mixed)")
@@ -4326,7 +4324,7 @@
     // this point does not assume that we are the only GC thread
     // running. Note: of course, the actual marking work will
     // not start until the safepoint itself is released in
-    // ConcurrentGCThread::safepoint_desynchronize().
+    // SuspendibleThreadSet::desynchronize().
     doConcurrentMark();
   }
 
@@ -5781,7 +5779,8 @@
                                               &keep_alive,
                                               &drain_queue,
                                               NULL,
-                                              _gc_timer_stw);
+                                              _gc_timer_stw,
+                                              _gc_tracer_stw->gc_id());
   } else {
     // Parallel reference processing
     assert(rp->num_q() == no_of_gc_workers, "sanity");
@@ -5792,7 +5791,8 @@
                                               &keep_alive,
                                               &drain_queue,
                                               &par_task_executor,
-                                              _gc_timer_stw);
+                                              _gc_timer_stw,
+                                              _gc_tracer_stw->gc_id());
   }
 
   _gc_tracer_stw->report_gc_reference_stats(stats);
@@ -6949,7 +6949,7 @@
       return;
     }
 
-    if (ScavengeRootsInCode && nm->detect_scavenge_root_oops()) {
+    if (ScavengeRootsInCode) {
       _g1h->register_nmethod(nm);
     }
   }
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -1124,20 +1124,11 @@
     return _gc_time_stamp;
   }
 
-  void reset_gc_time_stamp() {
-    _gc_time_stamp = 0;
-    OrderAccess::fence();
-    // Clear the cached CSet starting regions and time stamps.
-    // Their validity is dependent on the GC timestamp.
-    clear_cset_start_regions();
-  }
+  inline void reset_gc_time_stamp();
 
   void check_gc_time_stamps() PRODUCT_RETURN;
 
-  void increment_gc_time_stamp() {
-    ++_gc_time_stamp;
-    OrderAccess::fence();
-  }
+  inline void increment_gc_time_stamp();
 
   // Reset the given region's GC timestamp. If it's starts humongous,
   // also reset the GC timestamp of its corresponding
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp
--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -33,6 +33,7 @@
 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp"
 #include "gc_implementation/g1/heapRegionSet.inline.hpp"
 #include "gc_implementation/g1/heapRegionSeq.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "utilities/taskqueue.hpp"
 
 // Inline functions for G1CollectedHeap
@@ -59,6 +60,19 @@
   return res;
 }
 
+inline void G1CollectedHeap::reset_gc_time_stamp() {
+  _gc_time_stamp = 0;
+  OrderAccess::fence();
+  // Clear the cached CSet starting regions and time stamps.
+  // Their validity is dependent on the GC timestamp.
+  clear_cset_start_regions();
+}
+
+inline void G1CollectedHeap::increment_gc_time_stamp() {
+  ++_gc_time_stamp;
+  OrderAccess::fence();
+}
+
 inline void G1CollectedHeap::old_set_remove(HeapRegion* hr) {
   _old_set.remove(hr);
 }
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/g1/g1MarkSweep.cpp
--- a/src/share/vm/gc_implementation/g1/g1MarkSweep.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/g1/g1MarkSweep.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -123,7 +123,7 @@
 void G1MarkSweep::mark_sweep_phase1(bool& marked_for_unloading,
                                     bool clear_all_softrefs) {
   // Recursively traverse all live objects and mark them
-  GCTraceTime tm("phase 1", G1Log::fine() && Verbose, true, gc_timer());
+  GCTraceTime tm("phase 1", G1Log::fine() && Verbose, true, gc_timer(), gc_tracer()->gc_id());
   GenMarkSweep::trace(" 1");
 
   SharedHeap* sh = SharedHeap::heap();
@@ -148,7 +148,8 @@
                                       &GenMarkSweep::keep_alive,
                                       &GenMarkSweep::follow_stack_closure,
                                       NULL,
-                                      gc_timer());
+                                      gc_timer(),
+                                      gc_tracer()->gc_id());
   gc_tracer()->report_gc_reference_stats(stats);
 
 
@@ -262,7 +263,7 @@
 
   G1CollectedHeap* g1h = G1CollectedHeap::heap();
 
-  GCTraceTime tm("phase 2", G1Log::fine() && Verbose, true, gc_timer());
+  GCTraceTime tm("phase 2", G1Log::fine() && Verbose, true, gc_timer(), gc_tracer()->gc_id());
   GenMarkSweep::trace("2");
 
   // find the first region
@@ -299,7 +300,7 @@
   G1CollectedHeap* g1h = G1CollectedHeap::heap();
 
   // Adjust the pointers to reflect the new locations
-  GCTraceTime tm("phase 3", G1Log::fine() && Verbose, true, gc_timer());
+  GCTraceTime tm("phase 3", G1Log::fine() && Verbose, true, gc_timer(), gc_tracer()->gc_id());
   GenMarkSweep::trace("3");
 
   SharedHeap* sh = SharedHeap::heap();
@@ -362,7 +363,7 @@
   // to use a higher index (saved from phase2) when verifying perm_gen.
   G1CollectedHeap* g1h = G1CollectedHeap::heap();
 
-  GCTraceTime tm("phase 4", G1Log::fine() && Verbose, true, gc_timer());
+  GCTraceTime tm("phase 4", G1Log::fine() && Verbose, true, gc_timer(), gc_tracer()->gc_id());
   GenMarkSweep::trace("4");
 
   G1SpaceCompactClosure blk;
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/g1/g1OopClosures.inline.hpp
--- a/src/share/vm/gc_implementation/g1/g1OopClosures.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/g1/g1OopClosures.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -31,6 +31,7 @@
 #include "gc_implementation/g1/g1RemSet.hpp"
 #include "gc_implementation/g1/g1RemSet.inline.hpp"
 #include "gc_implementation/g1/heapRegionRemSet.hpp"
+#include "runtime/prefetch.inline.hpp"
 
 /*
  * This really ought to be an inline function, but apparently the C++
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/g1/g1SATBCardTableModRefBS.cpp
--- a/src/share/vm/gc_implementation/g1/g1SATBCardTableModRefBS.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/g1/g1SATBCardTableModRefBS.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -27,6 +27,7 @@
 #include "gc_implementation/g1/heapRegion.hpp"
 #include "gc_implementation/g1/satbQueue.hpp"
 #include "runtime/mutexLocker.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/thread.inline.hpp"
 
 G1SATBCardTableModRefBS::G1SATBCardTableModRefBS(MemRegion whole_heap,
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/g1/g1StringDedupThread.cpp
--- a/src/share/vm/gc_implementation/g1/g1StringDedupThread.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/g1/g1StringDedupThread.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -77,38 +77,37 @@
       break;
     }
 
-    // Include this thread in safepoints
-    stsJoin();
+    {
+      // Include thread in safepoints
+      SuspendibleThreadSetJoiner sts;
 
-    stat.mark_exec();
+      stat.mark_exec();
 
-    // Process the queue
-    for (;;) {
-      oop java_string = G1StringDedupQueue::pop();
-      if (java_string == NULL) {
-        break;
+      // Process the queue
+      for (;;) {
+        oop java_string = G1StringDedupQueue::pop();
+        if (java_string == NULL) {
+          break;
+        }
+
+        G1StringDedupTable::deduplicate(java_string, stat);
+
+        // Safepoint this thread if needed
+        if (sts.should_yield()) {
+          stat.mark_block();
+          sts.yield();
+          stat.mark_unblock();
+        }
       }
 
-      G1StringDedupTable::deduplicate(java_string, stat);
+      G1StringDedupTable::trim_entry_cache();
 
-      // Safepoint this thread if needed
-      if (stsShouldYield()) {
-        stat.mark_block();
-        stsYield(NULL);
-        stat.mark_unblock();
-      }
-    }
+      stat.mark_done();
 
-    G1StringDedupTable::trim_entry_cache();
-
-    stat.mark_done();
-
-    // Print statistics
-    total_stat.add(stat);
-    print(gclog_or_tty, stat, total_stat);
-
-    // Exclude this thread from safepoints
-    stsLeave();
+      // Print statistics
+      total_stat.add(stat);
+      print(gclog_or_tty, stat, total_stat);
+    }
   }
 
   terminate();
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/g1/heapRegion.cpp
--- a/src/share/vm/gc_implementation/g1/heapRegion.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/g1/heapRegion.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -32,7 +32,9 @@
 #include "gc_implementation/g1/heapRegionSeq.inline.hpp"
 #include "memory/genOopClosures.inline.hpp"
 #include "memory/iterator.hpp"
+#include "memory/space.inline.hpp"
 #include "oops/oop.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 
 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/g1/vm_operations_g1.cpp
--- a/src/share/vm/gc_implementation/g1/vm_operations_g1.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/g1/vm_operations_g1.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -226,7 +226,7 @@
 void VM_CGC_Operation::doit() {
   gclog_or_tty->date_stamp(G1Log::fine() && PrintGCDateStamps);
   TraceCPUTime tcpu(G1Log::finer(), true, gclog_or_tty);
-  GCTraceTime t(_printGCMessage, G1Log::fine(), true, G1CollectedHeap::heap()->gc_timer_cm());
+  GCTraceTime t(_printGCMessage, G1Log::fine(), true, G1CollectedHeap::heap()->gc_timer_cm(), G1CollectedHeap::heap()->concurrent_mark()->concurrent_gc_id());
   SharedHeap* sh = SharedHeap::heap();
   // This could go away if CollectedHeap gave access to _gc_is_active...
   if (sh != NULL) {
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/parNew/parCardTableModRefBS.cpp
--- a/src/share/vm/gc_implementation/parNew/parCardTableModRefBS.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/parNew/parCardTableModRefBS.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -32,6 +32,7 @@
 #include "oops/oop.inline.hpp"
 #include "runtime/java.hpp"
 #include "runtime/mutexLocker.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/virtualspace.hpp"
 #include "runtime/vmThread.hpp"
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/parNew/parNewGeneration.cpp
--- a/src/share/vm/gc_implementation/parNew/parNewGeneration.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/parNew/parNewGeneration.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -50,7 +50,7 @@
 #include "runtime/handles.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/java.hpp"
-#include "runtime/thread.hpp"
+#include "runtime/thread.inline.hpp"
 #include "utilities/copy.hpp"
 #include "utilities/globalDefinitions.hpp"
 #include "utilities/workgroup.hpp"
@@ -957,7 +957,7 @@
     size_policy->minor_collection_begin();
   }
 
-  GCTraceTime t1(GCCauseString("GC", gch->gc_cause()), PrintGC && !PrintGCDetails, true, NULL);
+  GCTraceTime t1(GCCauseString("GC", gch->gc_cause()), PrintGC && !PrintGCDetails, true, NULL, gc_tracer.gc_id());
   // Capture heap used before collection (for printing).
   size_t gch_prev_used = gch->used();
 
@@ -1015,14 +1015,14 @@
     ParNewRefProcTaskExecutor task_executor(*this, thread_state_set);
     stats = rp->process_discovered_references(&is_alive, &keep_alive,
                                               &evacuate_followers, &task_executor,
-                                              _gc_timer);
+                                              _gc_timer, gc_tracer.gc_id());
   } else {
     thread_state_set.flush();
     gch->set_par_threads(0);  // 0 ==> non-parallel.
     gch->save_marks();
     stats = rp->process_discovered_references(&is_alive, &keep_alive,
                                               &evacuate_followers, NULL,
-                                              _gc_timer);
+                                              _gc_timer, gc_tracer.gc_id());
   }
   gc_tracer.report_gc_reference_stats(stats);
   if (!promotion_failed()) {
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/parallelScavenge/cardTableExtension.cpp
--- a/src/share/vm/gc_implementation/parallelScavenge/cardTableExtension.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/parallelScavenge/cardTableExtension.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -30,6 +30,7 @@
 #include "gc_implementation/parallelScavenge/psYoungGen.hpp"
 #include "oops/oop.inline.hpp"
 #include "oops/oop.psgc.inline.hpp"
+#include "runtime/prefetch.inline.hpp"
 
 // Checks an individual oop for missing precise marks. Mark
 // may be either dirty or newgen.
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/parallelScavenge/gcTaskManager.cpp
--- a/src/share/vm/gc_implementation/parallelScavenge/gcTaskManager.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/parallelScavenge/gcTaskManager.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -30,6 +30,7 @@
 #include "memory/allocation.inline.hpp"
 #include "runtime/mutex.hpp"
 #include "runtime/mutexLocker.hpp"
+#include "runtime/orderAccess.inline.hpp"
 
 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/parallelScavenge/pcTasks.cpp
--- a/src/share/vm/gc_implementation/parallelScavenge/pcTasks.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/parallelScavenge/pcTasks.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -53,7 +53,7 @@
   ResourceMark rm;
 
   NOT_PRODUCT(GCTraceTime tm("ThreadRootsMarkingTask",
-    PrintGCDetails && TraceParallelOldGCTasks, true, NULL));
+    PrintGCDetails && TraceParallelOldGCTasks, true, NULL, PSParallelCompact::gc_tracer()->gc_id()));
   ParCompactionManager* cm =
     ParCompactionManager::gc_thread_compaction_manager(which);
 
@@ -82,7 +82,7 @@
   assert(Universe::heap()->is_gc_active(), "called outside gc");
 
   NOT_PRODUCT(GCTraceTime tm("MarkFromRootsTask",
-    PrintGCDetails && TraceParallelOldGCTasks, true, NULL));
+    PrintGCDetails && TraceParallelOldGCTasks, true, NULL, PSParallelCompact::gc_tracer()->gc_id()));
   ParCompactionManager* cm =
     ParCompactionManager::gc_thread_compaction_manager(which);
   PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm);
@@ -153,7 +153,7 @@
   assert(Universe::heap()->is_gc_active(), "called outside gc");
 
   NOT_PRODUCT(GCTraceTime tm("RefProcTask",
-    PrintGCDetails && TraceParallelOldGCTasks, true, NULL));
+    PrintGCDetails && TraceParallelOldGCTasks, true, NULL, PSParallelCompact::gc_tracer()->gc_id()));
   ParCompactionManager* cm =
     ParCompactionManager::gc_thread_compaction_manager(which);
   PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm);
@@ -209,7 +209,7 @@
   assert(Universe::heap()->is_gc_active(), "called outside gc");
 
   NOT_PRODUCT(GCTraceTime tm("StealMarkingTask",
-    PrintGCDetails && TraceParallelOldGCTasks, true, NULL));
+    PrintGCDetails && TraceParallelOldGCTasks, true, NULL, PSParallelCompact::gc_tracer()->gc_id()));
 
   ParCompactionManager* cm =
     ParCompactionManager::gc_thread_compaction_manager(which);
@@ -242,7 +242,7 @@
   assert(Universe::heap()->is_gc_active(), "called outside gc");
 
   NOT_PRODUCT(GCTraceTime tm("StealRegionCompactionTask",
-    PrintGCDetails && TraceParallelOldGCTasks, true, NULL));
+    PrintGCDetails && TraceParallelOldGCTasks, true, NULL, PSParallelCompact::gc_tracer()->gc_id()));
 
   ParCompactionManager* cm =
     ParCompactionManager::gc_thread_compaction_manager(which);
@@ -309,7 +309,7 @@
 void UpdateDensePrefixTask::do_it(GCTaskManager* manager, uint which) {
 
   NOT_PRODUCT(GCTraceTime tm("UpdateDensePrefixTask",
-    PrintGCDetails && TraceParallelOldGCTasks, true, NULL));
+    PrintGCDetails && TraceParallelOldGCTasks, true, NULL, PSParallelCompact::gc_tracer()->gc_id()));
 
   ParCompactionManager* cm =
     ParCompactionManager::gc_thread_compaction_manager(which);
@@ -324,7 +324,7 @@
   assert(Universe::heap()->is_gc_active(), "called outside gc");
 
   NOT_PRODUCT(GCTraceTime tm("DrainStacksCompactionTask",
-    PrintGCDetails && TraceParallelOldGCTasks, true, NULL));
+    PrintGCDetails && TraceParallelOldGCTasks, true, NULL, PSParallelCompact::gc_tracer()->gc_id()));
 
   ParCompactionManager* cm =
     ParCompactionManager::gc_thread_compaction_manager(which);
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.cpp
--- a/src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -169,7 +169,7 @@
 
     gclog_or_tty->date_stamp(PrintGC && PrintGCDateStamps);
     TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
-    GCTraceTime t1(GCCauseString("Full GC", gc_cause), PrintGC, !PrintGCDetails, NULL);
+    GCTraceTime t1(GCCauseString("Full GC", gc_cause), PrintGC, !PrintGCDetails, NULL, _gc_tracer->gc_id());
     TraceCollectorStats tcs(counters());
     TraceMemoryManagerStats tms(true /* Full GC */,gc_cause);
 
@@ -513,7 +513,7 @@
 
 void PSMarkSweep::mark_sweep_phase1(bool clear_all_softrefs) {
   // Recursively traverse all live objects and mark them
-  GCTraceTime tm("phase 1", PrintGCDetails && Verbose, true, _gc_timer);
+  GCTraceTime tm("phase 1", PrintGCDetails && Verbose, true, _gc_timer, _gc_tracer->gc_id());
   trace(" 1");
 
   ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
@@ -548,7 +548,7 @@
     ref_processor()->setup_policy(clear_all_softrefs);
     const ReferenceProcessorStats& stats =
       ref_processor()->process_discovered_references(
-        is_alive_closure(), mark_and_push_closure(), follow_stack_closure(), NULL, _gc_timer);
+        is_alive_closure(), mark_and_push_closure(), follow_stack_closure(), NULL, _gc_timer, _gc_tracer->gc_id());
     gc_tracer()->report_gc_reference_stats(stats);
   }
 
@@ -574,7 +574,7 @@
 
 
 void PSMarkSweep::mark_sweep_phase2() {
-  GCTraceTime tm("phase 2", PrintGCDetails && Verbose, true, _gc_timer);
+  GCTraceTime tm("phase 2", PrintGCDetails && Verbose, true, _gc_timer, _gc_tracer->gc_id());
   trace("2");
 
   // Now all live objects are marked, compute the new object addresses.
@@ -604,7 +604,7 @@
 
 void PSMarkSweep::mark_sweep_phase3() {
   // Adjust the pointers to reflect the new locations
-  GCTraceTime tm("phase 3", PrintGCDetails && Verbose, true, _gc_timer);
+  GCTraceTime tm("phase 3", PrintGCDetails && Verbose, true, _gc_timer, _gc_tracer->gc_id());
   trace("3");
 
   ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
@@ -647,7 +647,7 @@
 
 void PSMarkSweep::mark_sweep_phase4() {
   EventMark m("4 compact heap");
-  GCTraceTime tm("phase 4", PrintGCDetails && Verbose, true, _gc_timer);
+  GCTraceTime tm("phase 4", PrintGCDetails && Verbose, true, _gc_timer, _gc_tracer->gc_id());
   trace("4");
 
   // All pointers are now adjusted, move objects accordingly
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/parallelScavenge/psMarkSweepDecorator.cpp
--- a/src/share/vm/gc_implementation/parallelScavenge/psMarkSweepDecorator.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/parallelScavenge/psMarkSweepDecorator.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -32,6 +32,7 @@
 #include "gc_implementation/shared/markSweep.inline.hpp"
 #include "gc_implementation/shared/spaceDecorator.hpp"
 #include "oops/oop.inline.hpp"
+#include "runtime/prefetch.inline.hpp"
 
 PSMarkSweepDecorator* PSMarkSweepDecorator::_destination_decorator = NULL;
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp
--- a/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -978,7 +978,7 @@
   // at each young gen gc.  Do the update unconditionally (even though a
   // promotion failure does not swap spaces) because an unknown number of minor
   // collections will have swapped the spaces an unknown number of times.
-  GCTraceTime tm("pre compact", print_phases(), true, &_gc_timer);
+  GCTraceTime tm("pre compact", print_phases(), true, &_gc_timer, _gc_tracer.gc_id());
   ParallelScavengeHeap* heap = gc_heap();
   _space_info[from_space_id].set_space(heap->young_gen()->from_space());
   _space_info[to_space_id].set_space(heap->young_gen()->to_space());
@@ -1021,7 +1021,7 @@
 
 void PSParallelCompact::post_compact()
 {
-  GCTraceTime tm("post compact", print_phases(), true, &_gc_timer);
+  GCTraceTime tm("post compact", print_phases(), true, &_gc_timer, _gc_tracer.gc_id());
 
   for (unsigned int id = old_space_id; id < last_space_id; ++id) {
     // Clear the marking bitmap, summary data and split info.
@@ -1847,7 +1847,7 @@
 void PSParallelCompact::summary_phase(ParCompactionManager* cm,
                                       bool maximum_compaction)
 {
-  GCTraceTime tm("summary phase", print_phases(), true, &_gc_timer);
+  GCTraceTime tm("summary phase", print_phases(), true, &_gc_timer, _gc_tracer.gc_id());
   // trace("2");
 
 #ifdef  ASSERT
@@ -2056,7 +2056,7 @@
 
     gclog_or_tty->date_stamp(PrintGC && PrintGCDateStamps);
     TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
-    GCTraceTime t1(GCCauseString("Full GC", gc_cause), PrintGC, !PrintGCDetails, NULL);
+    GCTraceTime t1(GCCauseString("Full GC", gc_cause), PrintGC, !PrintGCDetails, NULL, _gc_tracer.gc_id());
     TraceCollectorStats tcs(counters());
     TraceMemoryManagerStats tms(true /* Full GC */,gc_cause);
 
@@ -2351,7 +2351,7 @@
                                       bool maximum_heap_compaction,
                                       ParallelOldTracer *gc_tracer) {
   // Recursively traverse all live objects and mark them
-  GCTraceTime tm("marking phase", print_phases(), true, &_gc_timer);
+  GCTraceTime tm("marking phase", print_phases(), true, &_gc_timer, _gc_tracer.gc_id());
 
   ParallelScavengeHeap* heap = gc_heap();
   uint parallel_gc_threads = heap->gc_task_manager()->workers();
@@ -2366,7 +2366,7 @@
   ClassLoaderDataGraph::clear_claimed_marks();
 
   {
-    GCTraceTime tm_m("par mark", print_phases(), true, &_gc_timer);
+    GCTraceTime tm_m("par mark", print_phases(), true, &_gc_timer, _gc_tracer.gc_id());
 
     ParallelScavengeHeap::ParStrongRootsScope psrs;
 
@@ -2395,24 +2395,24 @@
 
   // Process reference objects found during marking
   {
-    GCTraceTime tm_r("reference processing", print_phases(), true, &_gc_timer);
+    GCTraceTime tm_r("reference processing", print_phases(), true, &_gc_timer, _gc_tracer.gc_id());
 
     ReferenceProcessorStats stats;
     if (ref_processor()->processing_is_mt()) {
       RefProcTaskExecutor task_executor;
       stats = ref_processor()->process_discovered_references(
         is_alive_closure(), &mark_and_push_closure, &follow_stack_closure,
-        &task_executor, &_gc_timer);
+        &task_executor, &_gc_timer, _gc_tracer.gc_id());
     } else {
       stats = ref_processor()->process_discovered_references(
         is_alive_closure(), &mark_and_push_closure, &follow_stack_closure, NULL,
-        &_gc_timer);
+        &_gc_timer, _gc_tracer.gc_id());
     }
 
     gc_tracer->report_gc_reference_stats(stats);
   }
 
-  GCTraceTime tm_c("class unloading", print_phases(), true, &_gc_timer);
+  GCTraceTime tm_c("class unloading", print_phases(), true, &_gc_timer, _gc_tracer.gc_id());
 
   // This is the point where the entire marking should have completed.
   assert(cm->marking_stacks_empty(), "Marking should have completed");
@@ -2451,7 +2451,7 @@
 
 void PSParallelCompact::adjust_roots() {
   // Adjust the pointers to reflect the new locations
-  GCTraceTime tm("adjust roots", print_phases(), true, &_gc_timer);
+  GCTraceTime tm("adjust roots", print_phases(), true, &_gc_timer, _gc_tracer.gc_id());
 
   // Need new claim bits when tracing through and adjusting pointers.
   ClassLoaderDataGraph::clear_claimed_marks();
@@ -2487,7 +2487,7 @@
 void PSParallelCompact::enqueue_region_draining_tasks(GCTaskQueue* q,
                                                       uint parallel_gc_threads)
 {
-  GCTraceTime tm("drain task setup", print_phases(), true, &_gc_timer);
+  GCTraceTime tm("drain task setup", print_phases(), true, &_gc_timer, _gc_tracer.gc_id());
 
   // Find the threads that are active
   unsigned int which = 0;
@@ -2561,7 +2561,7 @@
 
 void PSParallelCompact::enqueue_dense_prefix_tasks(GCTaskQueue* q,
                                                     uint parallel_gc_threads) {
-  GCTraceTime tm("dense prefix task setup", print_phases(), true, &_gc_timer);
+  GCTraceTime tm("dense prefix task setup", print_phases(), true, &_gc_timer, _gc_tracer.gc_id());
 
   ParallelCompactData& sd = PSParallelCompact::summary_data();
 
@@ -2643,7 +2643,7 @@
                                      GCTaskQueue* q,
                                      ParallelTaskTerminator* terminator_ptr,
                                      uint parallel_gc_threads) {
-  GCTraceTime tm("steal task setup", print_phases(), true, &_gc_timer);
+  GCTraceTime tm("steal task setup", print_phases(), true, &_gc_timer, _gc_tracer.gc_id());
 
   // Once a thread has drained it's stack, it should try to steal regions from
   // other threads.
@@ -2691,7 +2691,7 @@
 
 void PSParallelCompact::compact() {
   // trace("5");
-  GCTraceTime tm("compaction phase", print_phases(), true, &_gc_timer);
+  GCTraceTime tm("compaction phase", print_phases(), true, &_gc_timer, _gc_tracer.gc_id());
 
   ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
   assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity");
@@ -2708,7 +2708,7 @@
   enqueue_region_stealing_tasks(q, &terminator, active_gc_threads);
 
   {
-    GCTraceTime tm_pc("par compact", print_phases(), true, &_gc_timer);
+    GCTraceTime tm_pc("par compact", print_phases(), true, &_gc_timer, _gc_tracer.gc_id());
 
     gc_task_manager()->execute_and_wait(q);
 
@@ -2722,7 +2722,7 @@
 
   {
     // Update the deferred objects, if any.  Any compaction manager can be used.
-    GCTraceTime tm_du("deferred updates", print_phases(), true, &_gc_timer);
+    GCTraceTime tm_du("deferred updates", print_phases(), true, &_gc_timer, _gc_tracer.gc_id());
     ParCompactionManager* cm = ParCompactionManager::manager_array(0);
     for (unsigned int id = old_space_id; id < last_space_id; ++id) {
       update_deferred_objects(cm, SpaceId(id));
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp
--- a/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -1004,6 +1004,10 @@
   static bool   _dwl_initialized;
 #endif  // #ifdef ASSERT
 
+
+ public:
+  static ParallelOldTracer* gc_tracer() { return &_gc_tracer; }
+
  private:
 
   static void initialize_space_info();
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/parallelScavenge/psScavenge.cpp
--- a/src/share/vm/gc_implementation/parallelScavenge/psScavenge.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/parallelScavenge/psScavenge.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -331,7 +331,7 @@
 
     gclog_or_tty->date_stamp(PrintGC && PrintGCDateStamps);
     TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
-    GCTraceTime t1(GCCauseString("GC", gc_cause), PrintGC, !PrintGCDetails, NULL);
+    GCTraceTime t1(GCCauseString("GC", gc_cause), PrintGC, !PrintGCDetails, NULL, _gc_tracer.gc_id());
     TraceCollectorStats tcs(counters());
     TraceMemoryManagerStats tms(false /* not full GC */,gc_cause);
 
@@ -397,7 +397,7 @@
     // We'll use the promotion manager again later.
     PSPromotionManager* promotion_manager = PSPromotionManager::vm_thread_promotion_manager();
     {
-      GCTraceTime tm("Scavenge", false, false, &_gc_timer);
+      GCTraceTime tm("Scavenge", false, false, &_gc_timer, _gc_tracer.gc_id());
       ParallelScavengeHeap::ParStrongRootsScope psrs;
 
       GCTaskQueue* q = GCTaskQueue::create();
@@ -439,7 +439,7 @@
 
     // Process reference objects discovered during scavenge
     {
-      GCTraceTime tm("References", false, false, &_gc_timer);
+      GCTraceTime tm("References", false, false, &_gc_timer, _gc_tracer.gc_id());
 
       reference_processor()->setup_policy(false); // not always_clear
       reference_processor()->set_active_mt_degree(active_workers);
@@ -450,10 +450,10 @@
         PSRefProcTaskExecutor task_executor;
         stats = reference_processor()->process_discovered_references(
           &_is_alive_closure, &keep_alive, &evac_followers, &task_executor,
-          &_gc_timer);
+          &_gc_timer, _gc_tracer.gc_id());
       } else {
         stats = reference_processor()->process_discovered_references(
-          &_is_alive_closure, &keep_alive, &evac_followers, NULL, &_gc_timer);
+          &_is_alive_closure, &keep_alive, &evac_followers, NULL, &_gc_timer, _gc_tracer.gc_id());
       }
 
       _gc_tracer.report_gc_reference_stats(stats);
@@ -468,7 +468,7 @@
     }
 
     {
-      GCTraceTime tm("StringTable", false, false, &_gc_timer);
+      GCTraceTime tm("StringTable", false, false, &_gc_timer, _gc_tracer.gc_id());
       // Unlink any dead interned Strings and process the remaining live ones.
       PSScavengeRootsClosure root_closure(promotion_manager);
       StringTable::unlink_or_oops_do(&_is_alive_closure, &root_closure);
@@ -638,7 +638,7 @@
     NOT_PRODUCT(reference_processor()->verify_no_references_recorded());
 
     {
-      GCTraceTime tm("Prune Scavenge Root Methods", false, false, &_gc_timer);
+      GCTraceTime tm("Prune Scavenge Root Methods", false, false, &_gc_timer, _gc_tracer.gc_id());
 
       CodeCache::prune_scavenge_root_nmethods();
     }
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/shared/concurrentGCThread.cpp
--- a/src/share/vm/gc_implementation/shared/concurrentGCThread.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/shared/concurrentGCThread.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -36,21 +36,10 @@
 
 int  ConcurrentGCThread::_CGC_flag            = CGC_nil;
 
-SuspendibleThreadSet ConcurrentGCThread::_sts;
-
 ConcurrentGCThread::ConcurrentGCThread() :
   _should_terminate(false), _has_terminated(false) {
-  _sts.initialize();
 };
 
-void ConcurrentGCThread::safepoint_synchronize() {
-  _sts.suspend_all();
-}
-
-void ConcurrentGCThread::safepoint_desynchronize() {
-  _sts.resume_all();
-}
-
 void ConcurrentGCThread::create_and_start() {
   if (os::create_thread(this, os::cgc_thread)) {
     // XXX: need to set this to low priority
@@ -91,78 +80,6 @@
   ThreadLocalStorage::set_thread(NULL);
 }
 
-
-void SuspendibleThreadSet::initialize_work() {
-  MutexLocker x(STS_init_lock);
-  if (!_initialized) {
-    _m             = new Monitor(Mutex::leaf,
-                                 "SuspendibleThreadSetLock", true);
-    _async         = 0;
-    _async_stop    = false;
-    _async_stopped = 0;
-    _initialized   = true;
-  }
-}
-
-void SuspendibleThreadSet::join() {
-  initialize();
-  MutexLockerEx x(_m, Mutex::_no_safepoint_check_flag);
-  while (_async_stop) _m->wait(Mutex::_no_safepoint_check_flag);
-  _async++;
-  assert(_async > 0, "Huh.");
-}
-
-void SuspendibleThreadSet::leave() {
-  assert(_initialized, "Must be initialized.");
-  MutexLockerEx x(_m, Mutex::_no_safepoint_check_flag);
-  _async--;
-  assert(_async >= 0, "Huh.");
-  if (_async_stop) _m->notify_all();
-}
-
-void SuspendibleThreadSet::yield(const char* id) {
-  assert(_initialized, "Must be initialized.");
-  if (_async_stop) {
-    MutexLockerEx x(_m, Mutex::_no_safepoint_check_flag);
-    if (_async_stop) {
-      _async_stopped++;
-      assert(_async_stopped > 0, "Huh.");
-      if (_async_stopped == _async) {
-        if (ConcGCYieldTimeout > 0) {
-          double now = os::elapsedTime();
-          guarantee((now - _suspend_all_start) * 1000.0 <
-                    (double)ConcGCYieldTimeout,
-                    "Long delay; whodunit?");
-        }
-      }
-      _m->notify_all();
-      while (_async_stop) _m->wait(Mutex::_no_safepoint_check_flag);
-      _async_stopped--;
-      assert(_async >= 0, "Huh");
-      _m->notify_all();
-    }
-  }
-}
-
-void SuspendibleThreadSet::suspend_all() {
-  initialize();  // If necessary.
-  if (ConcGCYieldTimeout > 0) {
-    _suspend_all_start = os::elapsedTime();
-  }
-  MutexLockerEx x(_m, Mutex::_no_safepoint_check_flag);
-  assert(!_async_stop, "Only one at a time.");
-  _async_stop = true;
-  while (_async_stopped < _async) _m->wait(Mutex::_no_safepoint_check_flag);
-}
-
-void SuspendibleThreadSet::resume_all() {
-  assert(_initialized, "Must be initialized.");
-  MutexLockerEx x(_m, Mutex::_no_safepoint_check_flag);
-  assert(_async_stopped == _async, "Huh.");
-  _async_stop = false;
-  _m->notify_all();
-}
-
 static void _sltLoop(JavaThread* thread, TRAPS) {
   SurrogateLockerThread* slt = (SurrogateLockerThread*)thread;
   slt->loop();
@@ -282,30 +199,3 @@
   }
   assert(!_monitor.owned_by_self(), "Should unlock before exit.");
 }
-
-
-// ===== STS Access From Outside CGCT =====
-
-void ConcurrentGCThread::stsYield(const char* id) {
-  assert( Thread::current()->is_ConcurrentGC_thread(),
-          "only a conc GC thread can call this" );
-  _sts.yield(id);
-}
-
-bool ConcurrentGCThread::stsShouldYield() {
-  assert( Thread::current()->is_ConcurrentGC_thread(),
-          "only a conc GC thread can call this" );
-  return _sts.should_yield();
-}
-
-void ConcurrentGCThread::stsJoin() {
-  assert( Thread::current()->is_ConcurrentGC_thread(),
-          "only a conc GC thread can call this" );
-  _sts.join();
-}
-
-void ConcurrentGCThread::stsLeave() {
-  assert( Thread::current()->is_ConcurrentGC_thread(),
-          "only a conc GC thread can call this" );
-  _sts.leave();
-}
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/shared/concurrentGCThread.hpp
--- a/src/share/vm/gc_implementation/shared/concurrentGCThread.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/shared/concurrentGCThread.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -26,55 +26,8 @@
 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_CONCURRENTGCTHREAD_HPP
 
 #include "utilities/macros.hpp"
-#if INCLUDE_ALL_GCS
+#include "gc_implementation/shared/suspendibleThreadSet.hpp"
 #include "runtime/thread.hpp"
-#endif // INCLUDE_ALL_GCS
-
-class VoidClosure;
-
-// A SuspendibleThreadSet is (obviously) a set of threads that can be
-// suspended.  A thread can join and later leave the set, and periodically
-// yield.  If some thread (not in the set) requests, via suspend_all, that
-// the threads be suspended, then the requesting thread is blocked until
-// all the threads in the set have yielded or left the set.  (Threads may
-// not enter the set when an attempted suspension is in progress.)  The
-// suspending thread later calls resume_all, allowing the suspended threads
-// to continue.
-
-class SuspendibleThreadSet {
-  Monitor* _m;
-  int      _async;
-  bool     _async_stop;
-  int      _async_stopped;
-  bool     _initialized;
-  double   _suspend_all_start;
-
-  void initialize_work();
-
- public:
-  SuspendibleThreadSet() : _initialized(false) {}
-
-  // Add the current thread to the set.  May block if a suspension
-  // is in progress.
-  void join();
-  // Removes the current thread from the set.
-  void leave();
-  // Returns "true" iff an suspension is in progress.
-  bool should_yield() { return _async_stop; }
-  // Suspends the current thread if a suspension is in progress (for
-  // the duration of the suspension.)
-  void yield(const char* id);
-  // Return when all threads in the set are suspended.
-  void suspend_all();
-  // Allow suspended threads to resume.
-  void resume_all();
-  // Redundant initializations okay.
-  void initialize() {
-    // Double-check dirty read idiom.
-    if (!_initialized) initialize_work();
-  }
-};
-
 
 class ConcurrentGCThread: public NamedThread {
   friend class VMStructs;
@@ -96,9 +49,6 @@
   static int set_CGC_flag(int b)           { return _CGC_flag |= b; }
   static int reset_CGC_flag(int b)         { return _CGC_flag &= ~b; }
 
-  // All instances share this one set.
-  static SuspendibleThreadSet _sts;
-
   // Create and start the thread (setting it's priority high.)
   void create_and_start();
 
@@ -121,25 +71,6 @@
 
   // Tester
   bool is_ConcurrentGC_thread() const          { return true;       }
-
-  static void safepoint_synchronize();
-  static void safepoint_desynchronize();
-
-  // All overridings should probably do _sts::yield, but we allow
-  // overriding for distinguished debugging messages.  Default is to do
-  // nothing.
-  virtual void yield() {}
-
-  bool should_yield() { return _sts.should_yield(); }
-
-  // they are prefixed by sts since there are already yield() and
-  // should_yield() (non-static) methods in this class and it was an
-  // easy way to differentiate them.
-  static void stsYield(const char* id);
-  static bool stsShouldYield();
-  static void stsJoin();
-  static void stsLeave();
-
 };
 
 // The SurrogateLockerThread is used by concurrent GC threads for
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/shared/gcId.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/gc_implementation/shared/gcId.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "gc_implementation/shared/gcId.hpp"
+#include "runtime/safepoint.hpp"
+
+uint GCId::_next_id = 0;
+
+const GCId GCId::create() {
+  return GCId(_next_id++);
+}
+const GCId GCId::peek() {
+  return GCId(_next_id);
+}
+const GCId GCId::undefined() {
+  return GCId(UNDEFINED);
+}
+bool GCId::is_undefined() const {
+  return _id == UNDEFINED;
+}
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/shared/gcId.hpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/gc_implementation/shared/gcId.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_GCID_HPP
+#define SHARE_VM_GC_IMPLEMENTATION_SHARED_GCID_HPP
+
+#include "memory/allocation.hpp"
+
+class GCId VALUE_OBJ_CLASS_SPEC {
+ private:
+  uint _id;
+  GCId(uint id) : _id(id) {}
+  GCId() { } // Unused
+
+  static uint _next_id;
+  static const uint UNDEFINED = (uint)-1;
+
+ public:
+  uint id() const {
+    assert(_id != UNDEFINED, "Using undefined GC ID");
+    return _id;
+  }
+  bool is_undefined() const;
+
+  static const GCId create();
+  static const GCId peek();
+  static const GCId undefined();
+};
+
+#endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCID_HPP
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/shared/gcTrace.cpp
--- a/src/share/vm/gc_implementation/shared/gcTrace.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/shared/gcTrace.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -25,6 +25,7 @@
 #include "precompiled.hpp"
 #include "gc_implementation/shared/copyFailedInfo.hpp"
 #include "gc_implementation/shared/gcHeapSummary.hpp"
+#include "gc_implementation/shared/gcId.hpp"
 #include "gc_implementation/shared/gcTimer.hpp"
 #include "gc_implementation/shared/gcTrace.hpp"
 #include "gc_implementation/shared/objectCountEventSender.hpp"
@@ -38,19 +39,14 @@
 #include "gc_implementation/g1/evacuationInfo.hpp"
 #endif
 
-#define assert_unset_gc_id() assert(_shared_gc_info.id() == SharedGCInfo::UNSET_GCID, "GC already started?")
-#define assert_set_gc_id() assert(_shared_gc_info.id() != SharedGCInfo::UNSET_GCID, "GC not started?")
-
-static GCId GCTracer_next_gc_id = 0;
-static GCId create_new_gc_id() {
-  return GCTracer_next_gc_id++;
-}
+#define assert_unset_gc_id() assert(_shared_gc_info.gc_id().is_undefined(), "GC already started?")
+#define assert_set_gc_id() assert(!_shared_gc_info.gc_id().is_undefined(), "GC not started?")
 
 void GCTracer::report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp) {
   assert_unset_gc_id();
 
-  GCId gc_id = create_new_gc_id();
-  _shared_gc_info.set_id(gc_id);
+  GCId gc_id = GCId::create();
+  _shared_gc_info.set_gc_id(gc_id);
   _shared_gc_info.set_cause(cause);
   _shared_gc_info.set_start_timestamp(timestamp);
 }
@@ -62,7 +58,7 @@
 }
 
 bool GCTracer::has_reported_gc_start() const {
-  return _shared_gc_info.id() != SharedGCInfo::UNSET_GCID;
+  return !_shared_gc_info.gc_id().is_undefined();
 }
 
 void GCTracer::report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions) {
@@ -81,7 +77,7 @@
 
   report_gc_end_impl(timestamp, time_partitions);
 
-  _shared_gc_info.set_id(SharedGCInfo::UNSET_GCID);
+  _shared_gc_info.set_gc_id(GCId::undefined());
 }
 
 void GCTracer::report_gc_reference_stats(const ReferenceProcessorStats& rps) const {
@@ -132,7 +128,7 @@
     if (!cit.allocation_failed()) {
       HeapInspection hi(false, false, false, NULL);
       hi.populate_table(&cit, is_alive_cl);
-      ObjectCountEventSenderClosure event_sender(_shared_gc_info.id(), cit.size_of_instances_in_words(), Ticks::now());
+      ObjectCountEventSenderClosure event_sender(_shared_gc_info.gc_id(), cit.size_of_instances_in_words(), Ticks::now());
       cit.iterate(&event_sender);
     }
   }
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/shared/gcTrace.hpp
--- a/src/share/vm/gc_implementation/shared/gcTrace.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/shared/gcTrace.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -27,6 +27,7 @@
 
 #include "gc_interface/gcCause.hpp"
 #include "gc_interface/gcName.hpp"
+#include "gc_implementation/shared/gcId.hpp"
 #include "gc_implementation/shared/gcWhen.hpp"
 #include "gc_implementation/shared/copyFailedInfo.hpp"
 #include "memory/allocation.hpp"
@@ -38,7 +39,6 @@
 #include "utilities/macros.hpp"
 #include "utilities/ticks.hpp"
 
-typedef uint GCId;
 
 class EvacuationInfo;
 class GCHeapSummary;
@@ -50,11 +50,8 @@
 class BoolObjectClosure;
 
 class SharedGCInfo VALUE_OBJ_CLASS_SPEC {
- public:
-  static const GCId UNSET_GCID = (GCId)-1;
-
  private:
-  GCId _id;
+  GCId _gc_id;
   GCName _name;
   GCCause::Cause _cause;
   Ticks     _start_timestamp;
@@ -64,7 +61,7 @@
 
  public:
   SharedGCInfo(GCName name) :
-    _id(UNSET_GCID),
+    _gc_id(GCId::undefined()),
     _name(name),
     _cause(GCCause::_last_gc_cause),
     _start_timestamp(),
@@ -73,8 +70,8 @@
     _longest_pause() {
   }
 
-  void set_id(GCId id) { _id = id; }
-  GCId id() const { return _id; }
+  void set_gc_id(GCId gc_id) { _gc_id = gc_id; }
+  const GCId& gc_id() const { return _gc_id; }
 
   void set_start_timestamp(const Ticks& timestamp) { _start_timestamp = timestamp; }
   const Ticks start_timestamp() const { return _start_timestamp; }
@@ -131,10 +128,11 @@
   void report_gc_reference_stats(const ReferenceProcessorStats& rp) const;
   void report_object_count_after_gc(BoolObjectClosure* object_filter) NOT_SERVICES_RETURN;
   bool has_reported_gc_start() const;
+  const GCId& gc_id() { return _shared_gc_info.gc_id(); }
 
  protected:
   GCTracer(GCName name) : _shared_gc_info(name) {}
-  virtual void report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp);
+  void report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp);
   virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
 
  private:
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/shared/gcTraceSend.cpp
--- a/src/share/vm/gc_implementation/shared/gcTraceSend.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/shared/gcTraceSend.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -43,7 +43,7 @@
 void GCTracer::send_garbage_collection_event() const {
   EventGCGarbageCollection event(UNTIMED);
   if (event.should_commit()) {
-    event.set_gcId(_shared_gc_info.id());
+    event.set_gcId(_shared_gc_info.gc_id().id());
     event.set_name(_shared_gc_info.name());
     event.set_cause((u2) _shared_gc_info.cause());
     event.set_sumOfPauses(_shared_gc_info.sum_of_pauses());
@@ -57,7 +57,7 @@
 void GCTracer::send_reference_stats_event(ReferenceType type, size_t count) const {
   EventGCReferenceStatistics e;
   if (e.should_commit()) {
-      e.set_gcId(_shared_gc_info.id());
+      e.set_gcId(_shared_gc_info.gc_id().id());
       e.set_type((u1)type);
       e.set_count(count);
       e.commit();
@@ -68,7 +68,7 @@
                                                       const MetaspaceChunkFreeListSummary& summary) const {
   EventMetaspaceChunkFreeListSummary e;
   if (e.should_commit()) {
-    e.set_gcId(_shared_gc_info.id());
+    e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_when(when);
     e.set_metadataType(mdtype);
 
@@ -91,7 +91,7 @@
 void ParallelOldTracer::send_parallel_old_event() const {
   EventGCParallelOld e(UNTIMED);
   if (e.should_commit()) {
-    e.set_gcId(_shared_gc_info.id());
+    e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_densePrefix((TraceAddress)_parallel_old_gc_info.dense_prefix());
     e.set_starttime(_shared_gc_info.start_timestamp());
     e.set_endtime(_shared_gc_info.end_timestamp());
@@ -102,7 +102,7 @@
 void YoungGCTracer::send_young_gc_event() const {
   EventGCYoungGarbageCollection e(UNTIMED);
   if (e.should_commit()) {
-    e.set_gcId(_shared_gc_info.id());
+    e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_tenuringThreshold(_tenuring_threshold);
     e.set_starttime(_shared_gc_info.start_timestamp());
     e.set_endtime(_shared_gc_info.end_timestamp());
@@ -113,7 +113,7 @@
 void OldGCTracer::send_old_gc_event() const {
   EventGCOldGarbageCollection e(UNTIMED);
   if (e.should_commit()) {
-    e.set_gcId(_shared_gc_info.id());
+    e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_starttime(_shared_gc_info.start_timestamp());
     e.set_endtime(_shared_gc_info.end_timestamp());
     e.commit();
@@ -132,7 +132,7 @@
 void YoungGCTracer::send_promotion_failed_event(const PromotionFailedInfo& pf_info) const {
   EventPromotionFailed e;
   if (e.should_commit()) {
-    e.set_gcId(_shared_gc_info.id());
+    e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_data(to_trace_struct(pf_info));
     e.set_thread(pf_info.thread()->thread_id());
     e.commit();
@@ -143,7 +143,7 @@
 void OldGCTracer::send_concurrent_mode_failure_event() {
   EventConcurrentModeFailure e;
   if (e.should_commit()) {
-    e.set_gcId(_shared_gc_info.id());
+    e.set_gcId(_shared_gc_info.gc_id().id());
     e.commit();
   }
 }
@@ -152,7 +152,7 @@
 void G1NewTracer::send_g1_young_gc_event() {
   EventGCG1GarbageCollection e(UNTIMED);
   if (e.should_commit()) {
-    e.set_gcId(_shared_gc_info.id());
+    e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_type(_g1_young_gc_info.type());
     e.set_starttime(_shared_gc_info.start_timestamp());
     e.set_endtime(_shared_gc_info.end_timestamp());
@@ -163,7 +163,7 @@
 void G1NewTracer::send_evacuation_info_event(EvacuationInfo* info) {
   EventEvacuationInfo e;
   if (e.should_commit()) {
-    e.set_gcId(_shared_gc_info.id());
+    e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_cSetRegions(info->collectionset_regions());
     e.set_cSetUsedBefore(info->collectionset_used_before());
     e.set_cSetUsedAfter(info->collectionset_used_after());
@@ -179,7 +179,7 @@
 void G1NewTracer::send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const {
   EventEvacuationFailed e;
   if (e.should_commit()) {
-    e.set_gcId(_shared_gc_info.id());
+    e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_data(to_trace_struct(ef_info));
     e.commit();
   }
@@ -206,17 +206,17 @@
 }
 
 class GCHeapSummaryEventSender : public GCHeapSummaryVisitor {
-  GCId _id;
+  GCId _gc_id;
   GCWhen::Type _when;
  public:
-  GCHeapSummaryEventSender(GCId id, GCWhen::Type when) : _id(id), _when(when) {}
+  GCHeapSummaryEventSender(GCId gc_id, GCWhen::Type when) : _gc_id(gc_id), _when(when) {}
 
   void visit(const GCHeapSummary* heap_summary) const {
     const VirtualSpaceSummary& heap_space = heap_summary->heap();
 
     EventGCHeapSummary e;
     if (e.should_commit()) {
-      e.set_gcId(_id);
+      e.set_gcId(_gc_id.id());
       e.set_when((u1)_when);
       e.set_heapSpace(to_trace_struct(heap_space));
       e.set_heapUsed(heap_summary->used());
@@ -236,7 +236,7 @@
 
     EventPSHeapSummary e;
     if (e.should_commit()) {
-      e.set_gcId(_id);
+      e.set_gcId(_gc_id.id());
       e.set_when((u1)_when);
 
       e.set_oldSpace(to_trace_struct(ps_heap_summary->old()));
@@ -251,7 +251,7 @@
 };
 
 void GCTracer::send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const {
-  GCHeapSummaryEventSender visitor(_shared_gc_info.id(), when);
+  GCHeapSummaryEventSender visitor(_shared_gc_info.gc_id(), when);
   heap_summary.accept(&visitor);
 }
 
@@ -268,7 +268,7 @@
 void GCTracer::send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const {
   EventMetaspaceSummary e;
   if (e.should_commit()) {
-    e.set_gcId(_shared_gc_info.id());
+    e.set_gcId(_shared_gc_info.gc_id().id());
     e.set_when((u1) when);
     e.set_gcThreshold(meta_space_summary.capacity_until_GC());
     e.set_metaspace(to_trace_struct(meta_space_summary.meta_space()));
@@ -287,7 +287,7 @@
   void send_phase(PausePhase* pause) {
     T event(UNTIMED);
     if (event.should_commit()) {
-      event.set_gcId(_gc_id);
+      event.set_gcId(_gc_id.id());
       event.set_name(pause->name());
       event.set_starttime(pause->start());
       event.set_endtime(pause->end());
@@ -311,7 +311,7 @@
 };
 
 void GCTracer::send_phase_events(TimePartitions* time_partitions) const {
-  PhaseSender phase_reporter(_shared_gc_info.id());
+  PhaseSender phase_reporter(_shared_gc_info.gc_id());
 
   TimePartitionPhasesIterator iter(time_partitions);
   while (iter.has_next()) {
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/shared/gcTraceTime.cpp
--- a/src/share/vm/gc_implementation/shared/gcTraceTime.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/shared/gcTraceTime.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -24,6 +24,7 @@
 
 #include "precompiled.hpp"
 #include "gc_implementation/shared/gcTimer.hpp"
+#include "gc_implementation/shared/gcTrace.hpp"
 #include "gc_implementation/shared/gcTraceTime.hpp"
 #include "runtime/globals.hpp"
 #include "runtime/os.hpp"
@@ -34,7 +35,7 @@
 #include "utilities/ticks.inline.hpp"
 
 
-GCTraceTime::GCTraceTime(const char* title, bool doit, bool print_cr, GCTimer* timer) :
+GCTraceTime::GCTraceTime(const char* title, bool doit, bool print_cr, GCTimer* timer, GCId gc_id) :
     _title(title), _doit(doit), _print_cr(print_cr), _timer(timer), _start_counter() {
   if (_doit || _timer != NULL) {
     _start_counter.stamp();
@@ -52,6 +53,9 @@
       gclog_or_tty->stamp();
       gclog_or_tty->print(": ");
     }
+    if (PrintGCID) {
+      gclog_or_tty->print("#%u: ", gc_id.id());
+    }
     gclog_or_tty->print("[%s", title);
     gclog_or_tty->flush();
   }
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/shared/gcTraceTime.hpp
--- a/src/share/vm/gc_implementation/shared/gcTraceTime.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/shared/gcTraceTime.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -25,6 +25,7 @@
 #ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACETIME_HPP
 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACETIME_HPP
 
+#include "gc_implementation/shared/gcTrace.hpp"
 #include "prims/jni_md.h"
 #include "utilities/ticks.hpp"
 
@@ -38,7 +39,7 @@
   Ticks _start_counter;
 
  public:
-  GCTraceTime(const char* title, bool doit, bool print_cr, GCTimer* timer);
+  GCTraceTime(const char* title, bool doit, bool print_cr, GCTimer* timer, GCId gc_id);
   ~GCTraceTime();
 };
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/shared/objectCountEventSender.cpp
--- a/src/share/vm/gc_implementation/shared/objectCountEventSender.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_implementation/shared/objectCountEventSender.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -24,6 +24,7 @@
 
 
 #include "precompiled.hpp"
+#include "gc_implementation/shared/gcId.hpp"
 #include "gc_implementation/shared/objectCountEventSender.hpp"
 #include "memory/heapInspection.hpp"
 #include "trace/tracing.hpp"
@@ -38,7 +39,7 @@
          "Only call this method if the event is enabled");
 
   EventObjectCountAfterGC event(UNTIMED);
-  event.set_gcId(gc_id);
+  event.set_gcId(gc_id.id());
   event.set_class(entry->klass());
   event.set_count(entry->count());
   event.set_totalSize(entry->words() * BytesPerWord);
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/shared/suspendibleThreadSet.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/gc_implementation/shared/suspendibleThreadSet.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "gc_implementation/shared/suspendibleThreadSet.hpp"
+#include "runtime/mutexLocker.hpp"
+#include "runtime/thread.inline.hpp"
+
+uint   SuspendibleThreadSet::_nthreads          = 0;
+uint   SuspendibleThreadSet::_nthreads_stopped  = 0;
+bool   SuspendibleThreadSet::_suspend_all       = false;
+double SuspendibleThreadSet::_suspend_all_start = 0.0;
+
+void SuspendibleThreadSet::join() {
+  MonitorLockerEx ml(STS_lock, Mutex::_no_safepoint_check_flag);
+  while (_suspend_all) {
+    ml.wait(Mutex::_no_safepoint_check_flag);
+  }
+  _nthreads++;
+}
+
+void SuspendibleThreadSet::leave() {
+  MonitorLockerEx ml(STS_lock, Mutex::_no_safepoint_check_flag);
+  assert(_nthreads > 0, "Invalid");
+  _nthreads--;
+  if (_suspend_all) {
+    ml.notify_all();
+  }
+}
+
+void SuspendibleThreadSet::yield() {
+  if (_suspend_all) {
+    MonitorLockerEx ml(STS_lock, Mutex::_no_safepoint_check_flag);
+    if (_suspend_all) {
+      _nthreads_stopped++;
+      if (_nthreads_stopped == _nthreads) {
+        if (ConcGCYieldTimeout > 0) {
+          double now = os::elapsedTime();
+          guarantee((now - _suspend_all_start) * 1000.0 < (double)ConcGCYieldTimeout, "Long delay");
+        }
+      }
+      ml.notify_all();
+      while (_suspend_all) {
+        ml.wait(Mutex::_no_safepoint_check_flag);
+      }
+      assert(_nthreads_stopped > 0, "Invalid");
+      _nthreads_stopped--;
+      ml.notify_all();
+    }
+  }
+}
+
+void SuspendibleThreadSet::synchronize() {
+  assert(Thread::current()->is_VM_thread(), "Must be the VM thread");
+  if (ConcGCYieldTimeout > 0) {
+    _suspend_all_start = os::elapsedTime();
+  }
+  MonitorLockerEx ml(STS_lock, Mutex::_no_safepoint_check_flag);
+  assert(!_suspend_all, "Only one at a time");
+  _suspend_all = true;
+  while (_nthreads_stopped < _nthreads) {
+    ml.wait(Mutex::_no_safepoint_check_flag);
+  }
+}
+
+void SuspendibleThreadSet::desynchronize() {
+  assert(Thread::current()->is_VM_thread(), "Must be the VM thread");
+  MonitorLockerEx ml(STS_lock, Mutex::_no_safepoint_check_flag);
+  assert(_nthreads_stopped == _nthreads, "Invalid");
+  _suspend_all = false;
+  ml.notify_all();
+}
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_implementation/shared/suspendibleThreadSet.hpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/gc_implementation/shared/suspendibleThreadSet.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_SUSPENDIBLETHREADSET_HPP
+#define SHARE_VM_GC_IMPLEMENTATION_SHARED_SUSPENDIBLETHREADSET_HPP
+
+#include "memory/allocation.hpp"
+
+// A SuspendibleThreadSet is a set of threads that can be suspended.
+// A thread can join and later leave the set, and periodically yield.
+// If some thread (not in the set) requests, via synchronize(), that
+// the threads be suspended, then the requesting thread is blocked
+// until all the threads in the set have yielded or left the set. Threads
+// may not enter the set when an attempted suspension is in progress. The
+// suspending thread later calls desynchronize(), allowing the suspended
+// threads to continue.
+class SuspendibleThreadSet : public AllStatic {
+private:
+  static uint   _nthreads;
+  static uint   _nthreads_stopped;
+  static bool   _suspend_all;
+  static double _suspend_all_start;
+
+public:
+  // Add the current thread to the set. May block if a suspension is in progress.
+  static void join();
+
+  // Removes the current thread from the set.
+  static void leave();
+
+  // Returns true if an suspension is in progress.
+  static bool should_yield() { return _suspend_all; }
+
+  // Suspends the current thread if a suspension is in progress.
+  static void yield();
+
+  // Returns when all threads in the set are suspended.
+  static void synchronize();
+
+  // Resumes all suspended threads in the set.
+  static void desynchronize();
+};
+
+class SuspendibleThreadSetJoiner : public StackObj {
+public:
+  SuspendibleThreadSetJoiner() {
+    SuspendibleThreadSet::join();
+  }
+
+  ~SuspendibleThreadSetJoiner() {
+    SuspendibleThreadSet::leave();
+  }
+
+  bool should_yield() {
+    return SuspendibleThreadSet::should_yield();
+  }
+
+  void yield() {
+    SuspendibleThreadSet::yield();
+  }
+};
+
+#endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_SUSPENDIBLETHREADSET_HPP
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/gc_interface/collectedHeap.cpp
--- a/src/share/vm/gc_interface/collectedHeap.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/gc_interface/collectedHeap.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -558,13 +558,13 @@
 
 void CollectedHeap::pre_full_gc_dump(GCTimer* timer) {
   if (HeapDumpBeforeFullGC) {
-    GCTraceTime tt("Heap Dump (before full gc): ", PrintGCDetails, false, timer);
+    GCTraceTime tt("Heap Dump (before full gc): ", PrintGCDetails, false, timer, GCId::create());
     // We are doing a "major" collection and a heap dump before
     // major collection has been requested.
     HeapDumper::dump_heap();
   }
   if (PrintClassHistogramBeforeFullGC) {
-    GCTraceTime tt("Class Histogram (before full gc): ", PrintGCDetails, true, timer);
+    GCTraceTime tt("Class Histogram (before full gc): ", PrintGCDetails, true, timer, GCId::create());
     VM_GC_HeapInspection inspector(gclog_or_tty, false /* ! full gc */);
     inspector.doit();
   }
@@ -572,11 +572,11 @@
 
 void CollectedHeap::post_full_gc_dump(GCTimer* timer) {
   if (HeapDumpAfterFullGC) {
-    GCTraceTime tt("Heap Dump (after full gc): ", PrintGCDetails, false, timer);
+    GCTraceTime tt("Heap Dump (after full gc): ", PrintGCDetails, false, timer, GCId::create());
     HeapDumper::dump_heap();
   }
   if (PrintClassHistogramAfterFullGC) {
-    GCTraceTime tt("Class Histogram (after full gc): ", PrintGCDetails, true, timer);
+    GCTraceTime tt("Class Histogram (after full gc): ", PrintGCDetails, true, timer, GCId::create());
     VM_GC_HeapInspection inspector(gclog_or_tty, false /* ! full gc */);
     inspector.doit();
   }
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/interpreter/bytecodeInterpreter.cpp
--- a/src/share/vm/interpreter/bytecodeInterpreter.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/interpreter/bytecodeInterpreter.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -41,43 +41,10 @@
 #include "runtime/frame.inline.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/interfaceSupport.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/sharedRuntime.hpp"
 #include "runtime/threadCritical.hpp"
 #include "utilities/exceptions.hpp"
-#ifdef TARGET_OS_ARCH_linux_x86
-# include "orderAccess_linux_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_sparc
-# include "orderAccess_linux_sparc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_zero
-# include "orderAccess_linux_zero.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_solaris_x86
-# include "orderAccess_solaris_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_solaris_sparc
-# include "orderAccess_solaris_sparc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_windows_x86
-# include "orderAccess_windows_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_arm
-# include "orderAccess_linux_arm.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_ppc
-# include "orderAccess_linux_ppc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_aix_ppc
-# include "orderAccess_aix_ppc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_bsd_x86
-# include "orderAccess_bsd_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_bsd_zero
-# include "orderAccess_bsd_zero.inline.hpp"
-#endif
-
 
 // no precompiled headers
 #ifdef CC_INTERP
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/memory/defNewGeneration.cpp
--- a/src/share/vm/memory/defNewGeneration.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/memory/defNewGeneration.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -42,6 +42,7 @@
 #include "oops/instanceRefKlass.hpp"
 #include "oops/oop.inline.hpp"
 #include "runtime/java.hpp"
+#include "runtime/prefetch.inline.hpp"
 #include "runtime/thread.inline.hpp"
 #include "utilities/copy.hpp"
 #include "utilities/stack.inline.hpp"
@@ -584,7 +585,7 @@
 
   init_assuming_no_promotion_failure();
 
-  GCTraceTime t1(GCCauseString("GC", gch->gc_cause()), PrintGC && !PrintGCDetails, true, NULL);
+  GCTraceTime t1(GCCauseString("GC", gch->gc_cause()), PrintGC && !PrintGCDetails, true, NULL, gc_tracer.gc_id());
   // Capture heap used before collection (for printing).
   size_t gch_prev_used = gch->used();
 
@@ -642,7 +643,7 @@
   rp->setup_policy(clear_all_soft_refs);
   const ReferenceProcessorStats& stats =
   rp->process_discovered_references(&is_alive, &keep_alive, &evacuate_followers,
-                                    NULL, _gc_timer);
+                                    NULL, _gc_timer, gc_tracer.gc_id());
   gc_tracer.report_gc_reference_stats(stats);
 
   if (!_promotion_failed) {
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/memory/gcLocker.cpp
--- a/src/share/vm/memory/gcLocker.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/memory/gcLocker.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -26,6 +26,7 @@
 #include "memory/gcLocker.inline.hpp"
 #include "memory/resourceArea.hpp"
 #include "memory/sharedHeap.hpp"
+#include "runtime/thread.inline.hpp"
 
 volatile jint GC_locker::_jni_lock_count = 0;
 volatile bool GC_locker::_needs_gc       = false;
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/memory/genCollectedHeap.cpp
--- a/src/share/vm/memory/genCollectedHeap.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/memory/genCollectedHeap.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -28,6 +28,7 @@
 #include "classfile/vmSymbols.hpp"
 #include "code/icBuffer.hpp"
 #include "gc_implementation/shared/collectorCounters.hpp"
+#include "gc_implementation/shared/gcTrace.hpp"
 #include "gc_implementation/shared/gcTraceTime.hpp"
 #include "gc_implementation/shared/vmGCOperations.hpp"
 #include "gc_interface/collectedHeap.inline.hpp"
@@ -385,7 +386,9 @@
     const char* gc_cause_prefix = complete ? "Full GC" : "GC";
     gclog_or_tty->date_stamp(PrintGC && PrintGCDateStamps);
     TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
-    GCTraceTime t(GCCauseString(gc_cause_prefix, gc_cause()), PrintGCDetails, false, NULL);
+    // The PrintGCDetails logging starts before we have incremented the GC id. We will do that later
+    // so we can assume here that the next GC id is what we want.
+    GCTraceTime t(GCCauseString(gc_cause_prefix, gc_cause()), PrintGCDetails, false, NULL, GCId::peek());
 
     gc_prologue(complete);
     increment_total_collections(complete);
@@ -418,7 +421,9 @@
         }
         // Timer for individual generations. Last argument is false: no CR
         // FIXME: We should try to start the timing earlier to cover more of the GC pause
-        GCTraceTime t1(_gens[i]->short_name(), PrintGCDetails, false, NULL);
+        // The PrintGCDetails logging starts before we have incremented the GC id. We will do that later
+        // so we can assume here that the next GC id is what we want.
+        GCTraceTime t1(_gens[i]->short_name(), PrintGCDetails, false, NULL, GCId::peek());
         TraceCollectorStats tcs(_gens[i]->counters());
         TraceMemoryManagerStats tmms(_gens[i]->kind(),gc_cause());
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/memory/genMarkSweep.cpp
--- a/src/share/vm/memory/genMarkSweep.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/memory/genMarkSweep.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -69,7 +69,7 @@
   _ref_processor = rp;
   rp->setup_policy(clear_all_softrefs);
 
-  GCTraceTime t1(GCCauseString("Full GC", gch->gc_cause()), PrintGC && !PrintGCDetails, true, NULL);
+  GCTraceTime t1(GCCauseString("Full GC", gch->gc_cause()), PrintGC && !PrintGCDetails, true, NULL, _gc_tracer->gc_id());
 
   gch->trace_heap_before_gc(_gc_tracer);
 
@@ -193,7 +193,7 @@
 void GenMarkSweep::mark_sweep_phase1(int level,
                                   bool clear_all_softrefs) {
   // Recursively traverse all live objects and mark them
-  GCTraceTime tm("phase 1", PrintGC && Verbose, true, _gc_timer);
+  GCTraceTime tm("phase 1", PrintGC && Verbose, true, _gc_timer, _gc_tracer->gc_id());
   trace(" 1");
 
   GenCollectedHeap* gch = GenCollectedHeap::heap();
@@ -222,7 +222,7 @@
     ref_processor()->setup_policy(clear_all_softrefs);
     const ReferenceProcessorStats& stats =
       ref_processor()->process_discovered_references(
-        &is_alive, &keep_alive, &follow_stack_closure, NULL, _gc_timer);
+        &is_alive, &keep_alive, &follow_stack_closure, NULL, _gc_timer, _gc_tracer->gc_id());
     gc_tracer()->report_gc_reference_stats(stats);
   }
 
@@ -264,7 +264,7 @@
 
   GenCollectedHeap* gch = GenCollectedHeap::heap();
 
-  GCTraceTime tm("phase 2", PrintGC && Verbose, true, _gc_timer);
+  GCTraceTime tm("phase 2", PrintGC && Verbose, true, _gc_timer, _gc_tracer->gc_id());
   trace("2");
 
   gch->prepare_for_compaction();
@@ -281,7 +281,7 @@
   GenCollectedHeap* gch = GenCollectedHeap::heap();
 
   // Adjust the pointers to reflect the new locations
-  GCTraceTime tm("phase 3", PrintGC && Verbose, true, _gc_timer);
+  GCTraceTime tm("phase 3", PrintGC && Verbose, true, _gc_timer, _gc_tracer->gc_id());
   trace("3");
 
   // Need new claim bits for the pointer adjustment tracing.
@@ -336,7 +336,7 @@
   // to use a higher index (saved from phase2) when verifying perm_gen.
   GenCollectedHeap* gch = GenCollectedHeap::heap();
 
-  GCTraceTime tm("phase 4", PrintGC && Verbose, true, _gc_timer);
+  GCTraceTime tm("phase 4", PrintGC && Verbose, true, _gc_timer, _gc_tracer->gc_id());
   trace("4");
 
   GenCompactClosure blk;
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/memory/metaspace.cpp
--- a/src/share/vm/memory/metaspace.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/memory/metaspace.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -42,7 +42,7 @@
 #include "runtime/init.hpp"
 #include "runtime/java.hpp"
 #include "runtime/mutex.hpp"
-#include "runtime/orderAccess.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "services/memTracker.hpp"
 #include "services/memoryService.hpp"
 #include "utilities/copy.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/memory/referenceProcessor.cpp
--- a/src/share/vm/memory/referenceProcessor.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/memory/referenceProcessor.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -190,7 +190,8 @@
   OopClosure*                  keep_alive,
   VoidClosure*                 complete_gc,
   AbstractRefProcTaskExecutor* task_executor,
-  GCTimer*                     gc_timer) {
+  GCTimer*                     gc_timer,
+  GCId                         gc_id) {
   NOT_PRODUCT(verify_ok_to_handle_reflists());
 
   assert(!enqueuing_is_done(), "If here enqueuing should not be complete");
@@ -212,7 +213,7 @@
   // Soft references
   size_t soft_count = 0;
   {
-    GCTraceTime tt("SoftReference", trace_time, false, gc_timer);
+    GCTraceTime tt("SoftReference", trace_time, false, gc_timer, gc_id);
     soft_count =
       process_discovered_reflist(_discoveredSoftRefs, _current_soft_ref_policy, true,
                                  is_alive, keep_alive, complete_gc, task_executor);
@@ -223,7 +224,7 @@
   // Weak references
   size_t weak_count = 0;
   {
-    GCTraceTime tt("WeakReference", trace_time, false, gc_timer);
+    GCTraceTime tt("WeakReference", trace_time, false, gc_timer, gc_id);
     weak_count =
       process_discovered_reflist(_discoveredWeakRefs, NULL, true,
                                  is_alive, keep_alive, complete_gc, task_executor);
@@ -232,7 +233,7 @@
   // Final references
   size_t final_count = 0;
   {
-    GCTraceTime tt("FinalReference", trace_time, false, gc_timer);
+    GCTraceTime tt("FinalReference", trace_time, false, gc_timer, gc_id);
     final_count =
       process_discovered_reflist(_discoveredFinalRefs, NULL, false,
                                  is_alive, keep_alive, complete_gc, task_executor);
@@ -241,7 +242,7 @@
   // Phantom references
   size_t phantom_count = 0;
   {
-    GCTraceTime tt("PhantomReference", trace_time, false, gc_timer);
+    GCTraceTime tt("PhantomReference", trace_time, false, gc_timer, gc_id);
     phantom_count =
       process_discovered_reflist(_discoveredPhantomRefs, NULL, false,
                                  is_alive, keep_alive, complete_gc, task_executor);
@@ -253,7 +254,7 @@
   // thus use JNI weak references to circumvent the phantom references and
   // resurrect a "post-mortem" object.
   {
-    GCTraceTime tt("JNI Weak Reference", trace_time, false, gc_timer);
+    GCTraceTime tt("JNI Weak Reference", trace_time, false, gc_timer, gc_id);
     if (task_executor != NULL) {
       task_executor->set_single_threaded_mode();
     }
@@ -1251,14 +1252,15 @@
   OopClosure* keep_alive,
   VoidClosure* complete_gc,
   YieldClosure* yield,
-  GCTimer* gc_timer) {
+  GCTimer* gc_timer,
+  GCId     gc_id) {
 
   NOT_PRODUCT(verify_ok_to_handle_reflists());
 
   // Soft references
   {
     GCTraceTime tt("Preclean SoftReferences", PrintGCDetails && PrintReferenceGC,
-              false, gc_timer);
+              false, gc_timer, gc_id);
     for (uint i = 0; i < _max_num_q; i++) {
       if (yield->should_return()) {
         return;
@@ -1271,7 +1273,7 @@
   // Weak references
   {
     GCTraceTime tt("Preclean WeakReferences", PrintGCDetails && PrintReferenceGC,
-              false, gc_timer);
+              false, gc_timer, gc_id);
     for (uint i = 0; i < _max_num_q; i++) {
       if (yield->should_return()) {
         return;
@@ -1284,7 +1286,7 @@
   // Final references
   {
     GCTraceTime tt("Preclean FinalReferences", PrintGCDetails && PrintReferenceGC,
-              false, gc_timer);
+              false, gc_timer, gc_id);
     for (uint i = 0; i < _max_num_q; i++) {
       if (yield->should_return()) {
         return;
@@ -1297,7 +1299,7 @@
   // Phantom references
   {
     GCTraceTime tt("Preclean PhantomReferences", PrintGCDetails && PrintReferenceGC,
-              false, gc_timer);
+              false, gc_timer, gc_id);
     for (uint i = 0; i < _max_num_q; i++) {
       if (yield->should_return()) {
         return;
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/memory/referenceProcessor.hpp
--- a/src/share/vm/memory/referenceProcessor.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/memory/referenceProcessor.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -25,6 +25,7 @@
 #ifndef SHARE_VM_MEMORY_REFERENCEPROCESSOR_HPP
 #define SHARE_VM_MEMORY_REFERENCEPROCESSOR_HPP
 
+#include "gc_implementation/shared/gcTrace.hpp"
 #include "memory/referencePolicy.hpp"
 #include "memory/referenceProcessorStats.hpp"
 #include "memory/referenceType.hpp"
@@ -349,7 +350,8 @@
                                       OopClosure*        keep_alive,
                                       VoidClosure*       complete_gc,
                                       YieldClosure*      yield,
-                                      GCTimer*           gc_timer);
+                                      GCTimer*           gc_timer,
+                                      GCId               gc_id);
 
   // Delete entries in the discovered lists that have
   // either a null referent or are not active. Such
@@ -480,7 +482,8 @@
                                 OopClosure*                  keep_alive,
                                 VoidClosure*                 complete_gc,
                                 AbstractRefProcTaskExecutor* task_executor,
-                                GCTimer *gc_timer);
+                                GCTimer *gc_timer,
+                                GCId    gc_id);
 
   // Enqueue references at end of GC (called by the garbage collector)
   bool enqueue_discovered_references(AbstractRefProcTaskExecutor* task_executor = NULL);
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/memory/space.cpp
--- a/src/share/vm/memory/space.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/memory/space.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -37,6 +37,8 @@
 #include "oops/oop.inline.hpp"
 #include "oops/oop.inline2.hpp"
 #include "runtime/java.hpp"
+#include "runtime/prefetch.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/safepoint.hpp"
 #include "utilities/copy.hpp"
 #include "utilities/globalDefinitions.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/memory/space.hpp
--- a/src/share/vm/memory/space.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/memory/space.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -33,24 +33,8 @@
 #include "memory/watermark.hpp"
 #include "oops/markOop.hpp"
 #include "runtime/mutexLocker.hpp"
-#include "runtime/prefetch.hpp"
 #include "utilities/macros.hpp"
 #include "utilities/workgroup.hpp"
-#ifdef TARGET_OS_FAMILY_linux
-# include "os_linux.inline.hpp"
-#endif
-#ifdef TARGET_OS_FAMILY_solaris
-# include "os_solaris.inline.hpp"
-#endif
-#ifdef TARGET_OS_FAMILY_windows
-# include "os_windows.inline.hpp"
-#endif
-#ifdef TARGET_OS_FAMILY_aix
-# include "os_aix.inline.hpp"
-#endif
-#ifdef TARGET_OS_FAMILY_bsd
-# include "os_bsd.inline.hpp"
-#endif
 
 // A space is an abstraction for the "storage units" backing
 // up the generation abstraction. It includes specific
@@ -512,272 +496,6 @@
                         size_t word_len);
 };
 
-#define SCAN_AND_FORWARD(cp,scan_limit,block_is_obj,block_size) {            \
-  /* Compute the new addresses for the live objects and store it in the mark \
-   * Used by universe::mark_sweep_phase2()                                   \
-   */                                                                        \
-  HeapWord* compact_top; /* This is where we are currently compacting to. */ \
-                                                                             \
-  /* We're sure to be here before any objects are compacted into this        \
-   * space, so this is a good time to initialize this:                       \
-   */                                                                        \
-  set_compaction_top(bottom());                                              \
-                                                                             \
-  if (cp->space == NULL) {                                                   \
-    assert(cp->gen != NULL, "need a generation");                            \
-    assert(cp->threshold == NULL, "just checking");                          \
-    assert(cp->gen->first_compaction_space() == this, "just checking");      \
-    cp->space = cp->gen->first_compaction_space();                           \
-    compact_top = cp->space->bottom();                                       \
-    cp->space->set_compaction_top(compact_top);                              \
-    cp->threshold = cp->space->initialize_threshold();                       \
-  } else {                                                                   \
-    compact_top = cp->space->compaction_top();                               \
-  }                                                                          \
-                                                                             \
-  /* We allow some amount of garbage towards the bottom of the space, so     \
-   * we don't start compacting before there is a significant gain to be made.\
-   * Occasionally, we want to ensure a full compaction, which is determined  \
-   * by the MarkSweepAlwaysCompactCount parameter.                           \
-   */                                                                        \
-  uint invocations = MarkSweep::total_invocations();                         \
-  bool skip_dead = ((invocations % MarkSweepAlwaysCompactCount) != 0);       \
-                                                                             \
-  size_t allowed_deadspace = 0;                                              \
-  if (skip_dead) {                                                           \
-    const size_t ratio = allowed_dead_ratio();                               \
-    allowed_deadspace = (capacity() * ratio / 100) / HeapWordSize;           \
-  }                                                                          \
-                                                                             \
-  HeapWord* q = bottom();                                                    \
-  HeapWord* t = scan_limit();                                                \
-                                                                             \
-  HeapWord*  end_of_live= q;    /* One byte beyond the last byte of the last \
-                                   live object. */                           \
-  HeapWord*  first_dead = end();/* The first dead object. */                 \
-  LiveRange* liveRange  = NULL; /* The current live range, recorded in the   \
-                                   first header of preceding free area. */   \
-  _first_dead = first_dead;                                                  \
-                                                                             \
-  const intx interval = PrefetchScanIntervalInBytes;                         \
-                                                                             \
-  while (q < t) {                                                            \
-    assert(!block_is_obj(q) ||                                               \
-           oop(q)->mark()->is_marked() || oop(q)->mark()->is_unlocked() ||   \
-           oop(q)->mark()->has_bias_pattern(),                               \
-           "these are the only valid states during a mark sweep");           \
-    if (block_is_obj(q) && oop(q)->is_gc_marked()) {                         \
-      /* prefetch beyond q */                                                \
-      Prefetch::write(q, interval);                                          \
-      size_t size = block_size(q);                                           \
-      compact_top = cp->space->forward(oop(q), size, cp, compact_top);       \
-      q += size;                                                             \
-      end_of_live = q;                                                       \
-    } else {                                                                 \
-      /* run over all the contiguous dead objects */                         \
-      HeapWord* end = q;                                                     \
-      do {                                                                   \
-        /* prefetch beyond end */                                            \
-        Prefetch::write(end, interval);                                      \
-        end += block_size(end);                                              \
-      } while (end < t && (!block_is_obj(end) || !oop(end)->is_gc_marked()));\
-                                                                             \
-      /* see if we might want to pretend this object is alive so that        \
-       * we don't have to compact quite as often.                            \
-       */                                                                    \
-      if (allowed_deadspace > 0 && q == compact_top) {                       \
-        size_t sz = pointer_delta(end, q);                                   \
-        if (insert_deadspace(allowed_deadspace, q, sz)) {                    \
-          compact_top = cp->space->forward(oop(q), sz, cp, compact_top);     \
-          q = end;                                                           \
-          end_of_live = end;                                                 \
-          continue;                                                          \
-        }                                                                    \
-      }                                                                      \
-                                                                             \
-      /* otherwise, it really is a free region. */                           \
-                                                                             \
-      /* for the previous LiveRange, record the end of the live objects. */  \
-      if (liveRange) {                                                       \
-        liveRange->set_end(q);                                               \
-      }                                                                      \
-                                                                             \
-      /* record the current LiveRange object.                                \
-       * liveRange->start() is overlaid on the mark word.                    \
-       */                                                                    \
-      liveRange = (LiveRange*)q;                                             \
-      liveRange->set_start(end);                                             \
-      liveRange->set_end(end);                                               \
-                                                                             \
-      /* see if this is the first dead region. */                            \
-      if (q < first_dead) {                                                  \
-        first_dead = q;                                                      \
-      }                                                                      \
-                                                                             \
-      /* move on to the next object */                                       \
-      q = end;                                                               \
-    }                                                                        \
-  }                                                                          \
-                                                                             \
-  assert(q == t, "just checking");                                           \
-  if (liveRange != NULL) {                                                   \
-    liveRange->set_end(q);                                                   \
-  }                                                                          \
-  _end_of_live = end_of_live;                                                \
-  if (end_of_live < first_dead) {                                            \
-    first_dead = end_of_live;                                                \
-  }                                                                          \
-  _first_dead = first_dead;                                                  \
-                                                                             \
-  /* save the compaction_top of the compaction space. */                     \
-  cp->space->set_compaction_top(compact_top);                                \
-}
-
-#define SCAN_AND_ADJUST_POINTERS(adjust_obj_size) {                             \
-  /* adjust all the interior pointers to point at the new locations of objects  \
-   * Used by MarkSweep::mark_sweep_phase3() */                                  \
-                                                                                \
-  HeapWord* q = bottom();                                                       \
-  HeapWord* t = _end_of_live;  /* Established by "prepare_for_compaction". */   \
-                                                                                \
-  assert(_first_dead <= _end_of_live, "Stands to reason, no?");                 \
-                                                                                \
-  if (q < t && _first_dead > q &&                                               \
-      !oop(q)->is_gc_marked()) {                                                \
-    /* we have a chunk of the space which hasn't moved and we've                \
-     * reinitialized the mark word during the previous pass, so we can't        \
-     * use is_gc_marked for the traversal. */                                   \
-    HeapWord* end = _first_dead;                                                \
-                                                                                \
-    while (q < end) {                                                           \
-      /* I originally tried to conjoin "block_start(q) == q" to the             \
-       * assertion below, but that doesn't work, because you can't              \
-       * accurately traverse previous objects to get to the current one         \
-       * after their pointers have been                                         \
-       * updated, until the actual compaction is done.  dld, 4/00 */            \
-      assert(block_is_obj(q),                                                   \
-             "should be at block boundaries, and should be looking at objs");   \
-                                                                                \
-      /* point all the oops to the new location */                              \
-      size_t size = oop(q)->adjust_pointers();                                  \
-      size = adjust_obj_size(size);                                             \
-                                                                                \
-      q += size;                                                                \
-    }                                                                           \
-                                                                                \
-    if (_first_dead == t) {                                                     \
-      q = t;                                                                    \
-    } else {                                                                    \
-      /* $$$ This is funky.  Using this to read the previously written          \
-       * LiveRange.  See also use below. */                                     \
-      q = (HeapWord*)oop(_first_dead)->mark()->decode_pointer();                \
-    }                                                                           \
-  }                                                                             \
-                                                                                \
-  const intx interval = PrefetchScanIntervalInBytes;                            \
-                                                                                \
-  debug_only(HeapWord* prev_q = NULL);                                          \
-  while (q < t) {                                                               \
-    /* prefetch beyond q */                                                     \
-    Prefetch::write(q, interval);                                               \
-    if (oop(q)->is_gc_marked()) {                                               \
-      /* q is alive */                                                          \
-      /* point all the oops to the new location */                              \
-      size_t size = oop(q)->adjust_pointers();                                  \
-      size = adjust_obj_size(size);                                             \
-      debug_only(prev_q = q);                                                   \
-      q += size;                                                                \
-    } else {                                                                    \
-      /* q is not a live object, so its mark should point at the next           \
-       * live object */                                                         \
-      debug_only(prev_q = q);                                                   \
-      q = (HeapWord*) oop(q)->mark()->decode_pointer();                         \
-      assert(q > prev_q, "we should be moving forward through memory");         \
-    }                                                                           \
-  }                                                                             \
-                                                                                \
-  assert(q == t, "just checking");                                              \
-}
-
-#define SCAN_AND_COMPACT(obj_size) {                                            \
-  /* Copy all live objects to their new location                                \
-   * Used by MarkSweep::mark_sweep_phase4() */                                  \
-                                                                                \
-  HeapWord*       q = bottom();                                                 \
-  HeapWord* const t = _end_of_live;                                             \
-  debug_only(HeapWord* prev_q = NULL);                                          \
-                                                                                \
-  if (q < t && _first_dead > q &&                                               \
-      !oop(q)->is_gc_marked()) {                                                \
-    debug_only(                                                                 \
-    /* we have a chunk of the space which hasn't moved and we've reinitialized  \
-     * the mark word during the previous pass, so we can't use is_gc_marked for \
-     * the traversal. */                                                        \
-    HeapWord* const end = _first_dead;                                          \
-                                                                                \
-    while (q < end) {                                                           \
-      size_t size = obj_size(q);                                                \
-      assert(!oop(q)->is_gc_marked(),                                           \
-             "should be unmarked (special dense prefix handling)");             \
-      debug_only(prev_q = q);                                                   \
-      q += size;                                                                \
-    }                                                                           \
-    )  /* debug_only */                                                         \
-                                                                                \
-    if (_first_dead == t) {                                                     \
-      q = t;                                                                    \
-    } else {                                                                    \
-      /* $$$ Funky */                                                           \
-      q = (HeapWord*) oop(_first_dead)->mark()->decode_pointer();               \
-    }                                                                           \
-  }                                                                             \
-                                                                                \
-  const intx scan_interval = PrefetchScanIntervalInBytes;                       \
-  const intx copy_interval = PrefetchCopyIntervalInBytes;                       \
-  while (q < t) {                                                               \
-    if (!oop(q)->is_gc_marked()) {                                              \
-      /* mark is pointer to next marked oop */                                  \
-      debug_only(prev_q = q);                                                   \
-      q = (HeapWord*) oop(q)->mark()->decode_pointer();                         \
-      assert(q > prev_q, "we should be moving forward through memory");         \
-    } else {                                                                    \
-      /* prefetch beyond q */                                                   \
-      Prefetch::read(q, scan_interval);                                         \
-                                                                                \
-      /* size and destination */                                                \
-      size_t size = obj_size(q);                                                \
-      HeapWord* compaction_top = (HeapWord*)oop(q)->forwardee();                \
-                                                                                \
-      /* prefetch beyond compaction_top */                                      \
-      Prefetch::write(compaction_top, copy_interval);                           \
-                                                                                \
-      /* copy object and reinit its mark */                                     \
-      assert(q != compaction_top, "everything in this pass should be moving");  \
-      Copy::aligned_conjoint_words(q, compaction_top, size);                    \
-      oop(compaction_top)->init_mark();                                         \
-      assert(oop(compaction_top)->klass() != NULL, "should have a class");      \
-                                                                                \
-      debug_only(prev_q = q);                                                   \
-      q += size;                                                                \
-    }                                                                           \
-  }                                                                             \
-                                                                                \
-  /* Let's remember if we were empty before we did the compaction. */           \
-  bool was_empty = used_region().is_empty();                                    \
-  /* Reset space after compaction is complete */                                \
-  reset_after_compaction();                                                     \
-  /* We do this clear, below, since it has overloaded meanings for some */      \
-  /* space subtypes.  For example, OffsetTableContigSpace's that were   */      \
-  /* compacted into will have had their offset table thresholds updated */      \
-  /* continuously, but those that weren't need to have their thresholds */      \
-  /* re-initialized.  Also mangles unused area for debugging.           */      \
-  if (used_region().is_empty()) {                                               \
-    if (!was_empty) clear(SpaceDecorator::Mangle);                              \
-  } else {                                                                      \
-    if (ZapUnusedHeapArea) mangle_unused_area();                                \
-  }                                                                             \
-}
-
 class GenSpaceMangler;
 
 // A space in which the free area is contiguous.  It therefore supports
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/memory/space.inline.hpp
--- a/src/share/vm/memory/space.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/memory/space.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -28,12 +28,279 @@
 #include "gc_interface/collectedHeap.hpp"
 #include "memory/space.hpp"
 #include "memory/universe.hpp"
+#include "runtime/prefetch.inline.hpp"
 #include "runtime/safepoint.hpp"
 
 inline HeapWord* Space::block_start(const void* p) {
   return block_start_const(p);
 }
 
+#define SCAN_AND_FORWARD(cp,scan_limit,block_is_obj,block_size) {            \
+  /* Compute the new addresses for the live objects and store it in the mark \
+   * Used by universe::mark_sweep_phase2()                                   \
+   */                                                                        \
+  HeapWord* compact_top; /* This is where we are currently compacting to. */ \
+                                                                             \
+  /* We're sure to be here before any objects are compacted into this        \
+   * space, so this is a good time to initialize this:                       \
+   */                                                                        \
+  set_compaction_top(bottom());                                              \
+                                                                             \
+  if (cp->space == NULL) {                                                   \
+    assert(cp->gen != NULL, "need a generation");                            \
+    assert(cp->threshold == NULL, "just checking");                          \
+    assert(cp->gen->first_compaction_space() == this, "just checking");      \
+    cp->space = cp->gen->first_compaction_space();                           \
+    compact_top = cp->space->bottom();                                       \
+    cp->space->set_compaction_top(compact_top);                              \
+    cp->threshold = cp->space->initialize_threshold();                       \
+  } else {                                                                   \
+    compact_top = cp->space->compaction_top();                               \
+  }                                                                          \
+                                                                             \
+  /* We allow some amount of garbage towards the bottom of the space, so     \
+   * we don't start compacting before there is a significant gain to be made.\
+   * Occasionally, we want to ensure a full compaction, which is determined  \
+   * by the MarkSweepAlwaysCompactCount parameter.                           \
+   */                                                                        \
+  uint invocations = MarkSweep::total_invocations();                         \
+  bool skip_dead = ((invocations % MarkSweepAlwaysCompactCount) != 0);       \
+                                                                             \
+  size_t allowed_deadspace = 0;                                              \
+  if (skip_dead) {                                                           \
+    const size_t ratio = allowed_dead_ratio();                               \
+    allowed_deadspace = (capacity() * ratio / 100) / HeapWordSize;           \
+  }                                                                          \
+                                                                             \
+  HeapWord* q = bottom();                                                    \
+  HeapWord* t = scan_limit();                                                \
+                                                                             \
+  HeapWord*  end_of_live= q;    /* One byte beyond the last byte of the last \
+                                   live object. */                           \
+  HeapWord*  first_dead = end();/* The first dead object. */                 \
+  LiveRange* liveRange  = NULL; /* The current live range, recorded in the   \
+                                   first header of preceding free area. */   \
+  _first_dead = first_dead;                                                  \
+                                                                             \
+  const intx interval = PrefetchScanIntervalInBytes;                         \
+                                                                             \
+  while (q < t) {                                                            \
+    assert(!block_is_obj(q) ||                                               \
+           oop(q)->mark()->is_marked() || oop(q)->mark()->is_unlocked() ||   \
+           oop(q)->mark()->has_bias_pattern(),                               \
+           "these are the only valid states during a mark sweep");           \
+    if (block_is_obj(q) && oop(q)->is_gc_marked()) {                         \
+      /* prefetch beyond q */                                                \
+      Prefetch::write(q, interval);                                          \
+      size_t size = block_size(q);                                           \
+      compact_top = cp->space->forward(oop(q), size, cp, compact_top);       \
+      q += size;                                                             \
+      end_of_live = q;                                                       \
+    } else {                                                                 \
+      /* run over all the contiguous dead objects */                         \
+      HeapWord* end = q;                                                     \
+      do {                                                                   \
+        /* prefetch beyond end */                                            \
+        Prefetch::write(end, interval);                                      \
+        end += block_size(end);                                              \
+      } while (end < t && (!block_is_obj(end) || !oop(end)->is_gc_marked()));\
+                                                                             \
+      /* see if we might want to pretend this object is alive so that        \
+       * we don't have to compact quite as often.                            \
+       */                                                                    \
+      if (allowed_deadspace > 0 && q == compact_top) {                       \
+        size_t sz = pointer_delta(end, q);                                   \
+        if (insert_deadspace(allowed_deadspace, q, sz)) {                    \
+          compact_top = cp->space->forward(oop(q), sz, cp, compact_top);     \
+          q = end;                                                           \
+          end_of_live = end;                                                 \
+          continue;                                                          \
+        }                                                                    \
+      }                                                                      \
+                                                                             \
+      /* otherwise, it really is a free region. */                           \
+                                                                             \
+      /* for the previous LiveRange, record the end of the live objects. */  \
+      if (liveRange) {                                                       \
+        liveRange->set_end(q);                                               \
+      }                                                                      \
+                                                                             \
+      /* record the current LiveRange object.                                \
+       * liveRange->start() is overlaid on the mark word.                    \
+       */                                                                    \
+      liveRange = (LiveRange*)q;                                             \
+      liveRange->set_start(end);                                             \
+      liveRange->set_end(end);                                               \
+                                                                             \
+      /* see if this is the first dead region. */                            \
+      if (q < first_dead) {                                                  \
+        first_dead = q;                                                      \
+      }                                                                      \
+                                                                             \
+      /* move on to the next object */                                       \
+      q = end;                                                               \
+    }                                                                        \
+  }                                                                          \
+                                                                             \
+  assert(q == t, "just checking");                                           \
+  if (liveRange != NULL) {                                                   \
+    liveRange->set_end(q);                                                   \
+  }                                                                          \
+  _end_of_live = end_of_live;                                                \
+  if (end_of_live < first_dead) {                                            \
+    first_dead = end_of_live;                                                \
+  }                                                                          \
+  _first_dead = first_dead;                                                  \
+                                                                             \
+  /* save the compaction_top of the compaction space. */                     \
+  cp->space->set_compaction_top(compact_top);                                \
+}
+
+#define SCAN_AND_ADJUST_POINTERS(adjust_obj_size) {                             \
+  /* adjust all the interior pointers to point at the new locations of objects  \
+   * Used by MarkSweep::mark_sweep_phase3() */                                  \
+                                                                                \
+  HeapWord* q = bottom();                                                       \
+  HeapWord* t = _end_of_live;  /* Established by "prepare_for_compaction". */   \
+                                                                                \
+  assert(_first_dead <= _end_of_live, "Stands to reason, no?");                 \
+                                                                                \
+  if (q < t && _first_dead > q &&                                               \
+      !oop(q)->is_gc_marked()) {                                                \
+    /* we have a chunk of the space which hasn't moved and we've                \
+     * reinitialized the mark word during the previous pass, so we can't        \
+     * use is_gc_marked for the traversal. */                                   \
+    HeapWord* end = _first_dead;                                                \
+                                                                                \
+    while (q < end) {                                                           \
+      /* I originally tried to conjoin "block_start(q) == q" to the             \
+       * assertion below, but that doesn't work, because you can't              \
+       * accurately traverse previous objects to get to the current one         \
+       * after their pointers have been                                         \
+       * updated, until the actual compaction is done.  dld, 4/00 */            \
+      assert(block_is_obj(q),                                                   \
+             "should be at block boundaries, and should be looking at objs");   \
+                                                                                \
+      /* point all the oops to the new location */                              \
+      size_t size = oop(q)->adjust_pointers();                                  \
+      size = adjust_obj_size(size);                                             \
+                                                                                \
+      q += size;                                                                \
+    }                                                                           \
+                                                                                \
+    if (_first_dead == t) {                                                     \
+      q = t;                                                                    \
+    } else {                                                                    \
+      /* $$$ This is funky.  Using this to read the previously written          \
+       * LiveRange.  See also use below. */                                     \
+      q = (HeapWord*)oop(_first_dead)->mark()->decode_pointer();                \
+    }                                                                           \
+  }                                                                             \
+                                                                                \
+  const intx interval = PrefetchScanIntervalInBytes;                            \
+                                                                                \
+  debug_only(HeapWord* prev_q = NULL);                                          \
+  while (q < t) {                                                               \
+    /* prefetch beyond q */                                                     \
+    Prefetch::write(q, interval);                                               \
+    if (oop(q)->is_gc_marked()) {                                               \
+      /* q is alive */                                                          \
+      /* point all the oops to the new location */                              \
+      size_t size = oop(q)->adjust_pointers();                                  \
+      size = adjust_obj_size(size);                                             \
+      debug_only(prev_q = q);                                                   \
+      q += size;                                                                \
+    } else {                                                                    \
+      /* q is not a live object, so its mark should point at the next           \
+       * live object */                                                         \
+      debug_only(prev_q = q);                                                   \
+      q = (HeapWord*) oop(q)->mark()->decode_pointer();                         \
+      assert(q > prev_q, "we should be moving forward through memory");         \
+    }                                                                           \
+  }                                                                             \
+                                                                                \
+  assert(q == t, "just checking");                                              \
+}
+
+#define SCAN_AND_COMPACT(obj_size) {                                            \
+  /* Copy all live objects to their new location                                \
+   * Used by MarkSweep::mark_sweep_phase4() */                                  \
+                                                                                \
+  HeapWord*       q = bottom();                                                 \
+  HeapWord* const t = _end_of_live;                                             \
+  debug_only(HeapWord* prev_q = NULL);                                          \
+                                                                                \
+  if (q < t && _first_dead > q &&                                               \
+      !oop(q)->is_gc_marked()) {                                                \
+    debug_only(                                                                 \
+    /* we have a chunk of the space which hasn't moved and we've reinitialized  \
+     * the mark word during the previous pass, so we can't use is_gc_marked for \
+     * the traversal. */                                                        \
+    HeapWord* const end = _first_dead;                                          \
+                                                                                \
+    while (q < end) {                                                           \
+      size_t size = obj_size(q);                                                \
+      assert(!oop(q)->is_gc_marked(),                                           \
+             "should be unmarked (special dense prefix handling)");             \
+      debug_only(prev_q = q);                                                   \
+      q += size;                                                                \
+    }                                                                           \
+    )  /* debug_only */                                                         \
+                                                                                \
+    if (_first_dead == t) {                                                     \
+      q = t;                                                                    \
+    } else {                                                                    \
+      /* $$$ Funky */                                                           \
+      q = (HeapWord*) oop(_first_dead)->mark()->decode_pointer();               \
+    }                                                                           \
+  }                                                                             \
+                                                                                \
+  const intx scan_interval = PrefetchScanIntervalInBytes;                       \
+  const intx copy_interval = PrefetchCopyIntervalInBytes;                       \
+  while (q < t) {                                                               \
+    if (!oop(q)->is_gc_marked()) {                                              \
+      /* mark is pointer to next marked oop */                                  \
+      debug_only(prev_q = q);                                                   \
+      q = (HeapWord*) oop(q)->mark()->decode_pointer();                         \
+      assert(q > prev_q, "we should be moving forward through memory");         \
+    } else {                                                                    \
+      /* prefetch beyond q */                                                   \
+      Prefetch::read(q, scan_interval);                                         \
+                                                                                \
+      /* size and destination */                                                \
+      size_t size = obj_size(q);                                                \
+      HeapWord* compaction_top = (HeapWord*)oop(q)->forwardee();                \
+                                                                                \
+      /* prefetch beyond compaction_top */                                      \
+      Prefetch::write(compaction_top, copy_interval);                           \
+                                                                                \
+      /* copy object and reinit its mark */                                     \
+      assert(q != compaction_top, "everything in this pass should be moving");  \
+      Copy::aligned_conjoint_words(q, compaction_top, size);                    \
+      oop(compaction_top)->init_mark();                                         \
+      assert(oop(compaction_top)->klass() != NULL, "should have a class");      \
+                                                                                \
+      debug_only(prev_q = q);                                                   \
+      q += size;                                                                \
+    }                                                                           \
+  }                                                                             \
+                                                                                \
+  /* Let's remember if we were empty before we did the compaction. */           \
+  bool was_empty = used_region().is_empty();                                    \
+  /* Reset space after compaction is complete */                                \
+  reset_after_compaction();                                                     \
+  /* We do this clear, below, since it has overloaded meanings for some */      \
+  /* space subtypes.  For example, OffsetTableContigSpace's that were   */      \
+  /* compacted into will have had their offset table thresholds updated */      \
+  /* continuously, but those that weren't need to have their thresholds */      \
+  /* re-initialized.  Also mangles unused area for debugging.           */      \
+  if (used_region().is_empty()) {                                               \
+    if (!was_empty) clear(SpaceDecorator::Mangle);                              \
+  } else {                                                                      \
+    if (ZapUnusedHeapArea) mangle_unused_area();                                \
+  }                                                                             \
+}
+
 inline HeapWord* OffsetTableContigSpace::allocate(size_t size) {
   HeapWord* res = ContiguousSpace::allocate(size);
   if (res != NULL) {
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/oops/cpCache.cpp
--- a/src/share/vm/oops/cpCache.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/oops/cpCache.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -33,6 +33,7 @@
 #include "prims/jvmtiRedefineClassesTrace.hpp"
 #include "prims/methodHandles.hpp"
 #include "runtime/handles.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "utilities/macros.hpp"
 #if INCLUDE_ALL_GCS
 # include "gc_implementation/parallelScavenge/psPromotionManager.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/oops/cpCache.hpp
--- a/src/share/vm/oops/cpCache.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/oops/cpCache.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -27,6 +27,7 @@
 
 #include "interpreter/bytecodes.hpp"
 #include "memory/allocation.hpp"
+#include "runtime/orderAccess.hpp"
 #include "utilities/array.hpp"
 
 class PSPromotionManager;
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/oops/instanceKlass.cpp
--- a/src/share/vm/oops/instanceKlass.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/oops/instanceKlass.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -54,6 +54,7 @@
 #include "runtime/handles.inline.hpp"
 #include "runtime/javaCalls.hpp"
 #include "runtime/mutexLocker.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/thread.inline.hpp"
 #include "services/classLoadingService.hpp"
 #include "services/threadService.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/oops/klass.cpp
--- a/src/share/vm/oops/klass.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/oops/klass.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -36,7 +36,8 @@
 #include "oops/instanceKlass.hpp"
 #include "oops/klass.inline.hpp"
 #include "oops/oop.inline2.hpp"
-#include "runtime/atomic.hpp"
+#include "runtime/atomic.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "trace/traceMacros.hpp"
 #include "utilities/stack.hpp"
 #include "utilities/macros.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/oops/klass.hpp
--- a/src/share/vm/oops/klass.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/oops/klass.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -32,7 +32,6 @@
 #include "oops/klassPS.hpp"
 #include "oops/metadata.hpp"
 #include "oops/oop.hpp"
-#include "runtime/orderAccess.hpp"
 #include "trace/traceMacros.hpp"
 #include "utilities/accessFlags.hpp"
 #include "utilities/macros.hpp"
@@ -585,36 +584,6 @@
 
   static void clean_weak_klass_links(BoolObjectClosure* is_alive);
 
-  // Prefetch within oop iterators.  This is a macro because we
-  // can't guarantee that the compiler will inline it.  In 64-bit
-  // it generally doesn't.  Signature is
-  //
-  // static void prefetch_beyond(oop* const start,
-  //                             oop* const end,
-  //                             const intx foffset,
-  //                             const Prefetch::style pstyle);
-#define prefetch_beyond(start, end, foffset, pstyle) {   \
-    const intx foffset_ = (foffset);                     \
-    const Prefetch::style pstyle_ = (pstyle);            \
-    assert(foffset_ > 0, "prefetch beyond, not behind"); \
-    if (pstyle_ != Prefetch::do_none) {                  \
-      oop* ref = (start);                                \
-      if (ref < (end)) {                                 \
-        switch (pstyle_) {                               \
-        case Prefetch::do_read:                          \
-          Prefetch::read(*ref, foffset_);                \
-          break;                                         \
-        case Prefetch::do_write:                         \
-          Prefetch::write(*ref, foffset_);               \
-          break;                                         \
-        default:                                         \
-          ShouldNotReachHere();                          \
-          break;                                         \
-        }                                                \
-      }                                                  \
-    }                                                    \
-  }
-
   // iterators
   virtual int oop_oop_iterate(oop obj, ExtendedOopClosure* blk) = 0;
   virtual int oop_oop_iterate_v(oop obj, ExtendedOopClosure* blk) {
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/oops/method.cpp
--- a/src/share/vm/oops/method.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/oops/method.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -49,6 +49,7 @@
 #include "runtime/compilationPolicy.hpp"
 #include "runtime/frame.inline.hpp"
 #include "runtime/handles.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/relocator.hpp"
 #include "runtime/sharedRuntime.hpp"
 #include "runtime/signature.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/oops/methodData.cpp
--- a/src/share/vm/oops/methodData.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/oops/methodData.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -34,6 +34,7 @@
 #include "runtime/compilationPolicy.hpp"
 #include "runtime/deoptimization.hpp"
 #include "runtime/handles.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 
 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/oops/objArrayKlass.cpp
--- a/src/share/vm/oops/objArrayKlass.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/oops/objArrayKlass.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -42,6 +42,7 @@
 #include "oops/symbol.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/mutexLocker.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "utilities/copy.hpp"
 #include "utilities/macros.hpp"
 #if INCLUDE_ALL_GCS
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/oops/oop.inline.hpp
--- a/src/share/vm/oops/oop.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/oops/oop.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -38,7 +38,8 @@
 #include "oops/klass.inline.hpp"
 #include "oops/markOop.inline.hpp"
 #include "oops/oop.hpp"
-#include "runtime/atomic.hpp"
+#include "runtime/atomic.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/os.hpp"
 #include "utilities/macros.hpp"
 #ifdef TARGET_ARCH_x86
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/oops/typeArrayKlass.cpp
--- a/src/share/vm/oops/typeArrayKlass.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/oops/typeArrayKlass.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -39,6 +39,7 @@
 #include "oops/typeArrayKlass.hpp"
 #include "oops/typeArrayOop.hpp"
 #include "runtime/handles.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "utilities/macros.hpp"
 
 bool TypeArrayKlass::compute_is_subtype_of(Klass* k) {
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/oops/typeArrayOop.hpp
--- a/src/share/vm/oops/typeArrayOop.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/oops/typeArrayOop.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -27,39 +27,7 @@
 
 #include "oops/arrayOop.hpp"
 #include "oops/typeArrayKlass.hpp"
-#ifdef TARGET_OS_ARCH_linux_x86
-# include "orderAccess_linux_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_sparc
-# include "orderAccess_linux_sparc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_zero
-# include "orderAccess_linux_zero.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_solaris_x86
-# include "orderAccess_solaris_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_solaris_sparc
-# include "orderAccess_solaris_sparc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_windows_x86
-# include "orderAccess_windows_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_arm
-# include "orderAccess_linux_arm.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_ppc
-# include "orderAccess_linux_ppc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_aix_ppc
-# include "orderAccess_aix_ppc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_bsd_x86
-# include "orderAccess_bsd_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_bsd_zero
-# include "orderAccess_bsd_zero.inline.hpp"
-#endif
+#include "runtime/orderAccess.inline.hpp"
 
 // A typeArrayOop is an array containing basic types (non oop elements).
 // It is used for arrays of {characters, singles, doubles, bytes, shorts, integers, longs}
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/opto/callGenerator.cpp
--- a/src/share/vm/opto/callGenerator.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/opto/callGenerator.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -837,8 +837,11 @@
           Node*             receiver_node = kit.argument(0);
           const TypeOopPtr* receiver_type = gvn.type(receiver_node)->isa_oopptr();
           // call_does_dispatch and vtable_index are out-parameters.  They might be changed.
-          target = C->optimize_virtual_call(caller, jvms->bci(), klass, target, receiver_type,
-                                            is_virtual,
+          // optimize_virtual_call() takes 2 different holder
+          // arguments for a corner case that doesn't apply here (see
+          // Parse::do_call())
+          target = C->optimize_virtual_call(caller, jvms->bci(), klass, klass,
+                                            target, receiver_type, is_virtual,
                                             call_does_dispatch, vtable_index);  // out-parameters
           // We lack profiling at this call but type speculation may
           // provide us with a type
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/opto/compile.hpp
--- a/src/share/vm/opto/compile.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/opto/compile.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -854,8 +854,8 @@
 
   // Helper functions to identify inlining potential at call-site
   ciMethod* optimize_virtual_call(ciMethod* caller, int bci, ciInstanceKlass* klass,
-                                  ciMethod* callee, const TypeOopPtr* receiver_type,
-                                  bool is_virtual,
+                                  ciKlass* holder, ciMethod* callee,
+                                  const TypeOopPtr* receiver_type, bool is_virtual,
                                   bool &call_does_dispatch, int &vtable_index);
   ciMethod* optimize_inlining(ciMethod* caller, int bci, ciInstanceKlass* klass,
                               ciMethod* callee, const TypeOopPtr* receiver_type);
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/opto/doCall.cpp
--- a/src/share/vm/opto/doCall.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/opto/doCall.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -460,8 +460,14 @@
     Node* receiver_node             = stack(sp() - nargs);
     const TypeOopPtr* receiver_type = _gvn.type(receiver_node)->isa_oopptr();
     // call_does_dispatch and vtable_index are out-parameters.  They might be changed.
-    callee = C->optimize_virtual_call(method(), bci(), klass, orig_callee, receiver_type,
-                                      is_virtual,
+    // For arrays, klass below is Object. When vtable calls are used,
+    // resolving the call with Object would allow an illegal call to
+    // finalize() on an array. We use holder instead: illegal calls to
+    // finalize() won't be compiled as vtable calls (IC call
+    // resolution will catch the illegal call) and the few legal calls
+    // on array types won't be either.
+    callee = C->optimize_virtual_call(method(), bci(), klass, holder, orig_callee,
+                                      receiver_type, is_virtual,
                                       call_does_dispatch, vtable_index);  // out-parameters
     speculative_receiver_type = receiver_type != NULL ? receiver_type->speculative_type() : NULL;
   }
@@ -937,8 +943,8 @@
 
 
 ciMethod* Compile::optimize_virtual_call(ciMethod* caller, int bci, ciInstanceKlass* klass,
-                                         ciMethod* callee, const TypeOopPtr* receiver_type,
-                                         bool is_virtual,
+                                         ciKlass* holder, ciMethod* callee,
+                                         const TypeOopPtr* receiver_type, bool is_virtual,
                                          bool& call_does_dispatch, int& vtable_index) {
   // Set default values for out-parameters.
   call_does_dispatch = true;
@@ -953,7 +959,7 @@
     call_does_dispatch = false;
   } else if (!UseInlineCaches && is_virtual && callee->is_loaded()) {
     // We can make a vtable call at this site
-    vtable_index = callee->resolve_vtable_index(caller->holder(), klass);
+    vtable_index = callee->resolve_vtable_index(caller->holder(), holder);
   }
   return callee;
 }
@@ -976,8 +982,10 @@
   ciInstanceKlass* actual_receiver = klass;
   if (receiver_type != NULL) {
     // Array methods are all inherited from Object, and are monomorphic.
+    // finalize() call on array is not allowed.
     if (receiver_type->isa_aryptr() &&
-        callee->holder() == env()->Object_klass()) {
+        callee->holder() == env()->Object_klass() &&
+        callee->name() != ciSymbol::finalize_method_name()) {
       return callee;
     }
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/precompiled/precompiled.hpp
--- a/src/share/vm/precompiled/precompiled.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/precompiled/precompiled.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -193,11 +193,13 @@
 # include "runtime/mutexLocker.hpp"
 # include "runtime/objectMonitor.hpp"
 # include "runtime/orderAccess.hpp"
+# include "runtime/orderAccess.inline.hpp"
 # include "runtime/os.hpp"
 # include "runtime/osThread.hpp"
 # include "runtime/perfData.hpp"
 # include "runtime/perfMemory.hpp"
 # include "runtime/prefetch.hpp"
+# include "runtime/prefetch.inline.hpp"
 # include "runtime/reflection.hpp"
 # include "runtime/reflectionUtils.hpp"
 # include "runtime/registerMap.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/prims/forte.cpp
--- a/src/share/vm/prims/forte.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/prims/forte.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -32,7 +32,7 @@
 #include "oops/oop.inline2.hpp"
 #include "prims/forte.hpp"
 #include "runtime/javaCalls.hpp"
-#include "runtime/thread.hpp"
+#include "runtime/thread.inline.hpp"
 #include "runtime/vframe.hpp"
 #include "runtime/vframeArray.hpp"
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/prims/jni.cpp
--- a/src/share/vm/prims/jni.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/prims/jni.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -67,6 +67,7 @@
 #include "runtime/java.hpp"
 #include "runtime/javaCalls.hpp"
 #include "runtime/jfieldIDWorkaround.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/reflection.hpp"
 #include "runtime/sharedRuntime.hpp"
 #include "runtime/signature.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/prims/jniCheck.cpp
--- a/src/share/vm/prims/jniCheck.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/prims/jniCheck.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -35,7 +35,7 @@
 #include "runtime/handles.hpp"
 #include "runtime/interfaceSupport.hpp"
 #include "runtime/jfieldIDWorkaround.hpp"
-#include "runtime/thread.hpp"
+#include "runtime/thread.inline.hpp"
 #ifdef TARGET_ARCH_x86
 # include "jniTypes_x86.hpp"
 #endif
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/prims/jvm.cpp
--- a/src/share/vm/prims/jvm.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/prims/jvm.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -51,6 +51,7 @@
 #include "runtime/java.hpp"
 #include "runtime/javaCalls.hpp"
 #include "runtime/jfieldIDWorkaround.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/os.hpp"
 #include "runtime/perfData.hpp"
 #include "runtime/reflection.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/prims/jvmtiEnvBase.cpp
--- a/src/share/vm/prims/jvmtiEnvBase.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/prims/jvmtiEnvBase.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -41,6 +41,7 @@
 #include "runtime/objectMonitor.hpp"
 #include "runtime/objectMonitor.inline.hpp"
 #include "runtime/signature.hpp"
+#include "runtime/thread.inline.hpp"
 #include "runtime/vframe.hpp"
 #include "runtime/vframe_hp.hpp"
 #include "runtime/vmThread.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/prims/jvmtiExport.cpp
--- a/src/share/vm/prims/jvmtiExport.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/prims/jvmtiExport.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -47,7 +47,7 @@
 #include "runtime/interfaceSupport.hpp"
 #include "runtime/objectMonitor.hpp"
 #include "runtime/objectMonitor.inline.hpp"
-#include "runtime/thread.hpp"
+#include "runtime/thread.inline.hpp"
 #include "runtime/vframe.hpp"
 #include "services/attachListener.hpp"
 #include "services/serviceUtil.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/prims/jvmtiRawMonitor.cpp
--- a/src/share/vm/prims/jvmtiRawMonitor.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/prims/jvmtiRawMonitor.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -25,7 +25,8 @@
 #include "precompiled.hpp"
 #include "prims/jvmtiRawMonitor.hpp"
 #include "runtime/interfaceSupport.hpp"
-#include "runtime/thread.hpp"
+#include "runtime/orderAccess.inline.hpp"
+#include "runtime/thread.inline.hpp"
 
 GrowableArray<JvmtiRawMonitor*> *JvmtiPendingMonitors::_monitors = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<JvmtiRawMonitor*>(1,true);
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/prims/jvmtiThreadState.inline.hpp
--- a/src/share/vm/prims/jvmtiThreadState.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/prims/jvmtiThreadState.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -27,6 +27,7 @@
 
 #include "prims/jvmtiEnvThreadState.hpp"
 #include "prims/jvmtiThreadState.hpp"
+#include "runtime/thread.inline.hpp"
 
 // JvmtiEnvThreadStateIterator implementation
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/prims/unsafe.cpp
--- a/src/share/vm/prims/unsafe.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/prims/unsafe.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -33,6 +33,8 @@
 #include "prims/jvm.h"
 #include "runtime/globals.hpp"
 #include "runtime/interfaceSupport.hpp"
+#include "runtime/prefetch.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/reflection.hpp"
 #include "runtime/synchronizer.hpp"
 #include "services/threadService.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/runtime/fprofiler.cpp
--- a/src/share/vm/runtime/fprofiler.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/runtime/fprofiler.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -38,6 +38,7 @@
 #include "runtime/stubCodeGenerator.hpp"
 #include "runtime/stubRoutines.hpp"
 #include "runtime/task.hpp"
+#include "runtime/thread.inline.hpp"
 #include "runtime/vframe.hpp"
 #include "utilities/macros.hpp"
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/runtime/globals.hpp
--- a/src/share/vm/runtime/globals.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/runtime/globals.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -2287,6 +2287,9 @@
   manageable(bool, PrintGCTimeStamps, false,                                \
           "Print timestamps at garbage collection")                         \
                                                                             \
+  manageable(bool, PrintGCID, false,                                        \
+          "Print an identifier for each garbage collection")                \
+                                                                            \
   product(bool, PrintGCTaskTimeStamps, false,                               \
           "Print timestamps for individual gc worker thread tasks")         \
                                                                             \
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/runtime/interfaceSupport.cpp
--- a/src/share/vm/runtime/interfaceSupport.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/runtime/interfaceSupport.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -30,6 +30,7 @@
 #include "memory/resourceArea.hpp"
 #include "runtime/init.hpp"
 #include "runtime/interfaceSupport.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/threadLocalStorage.hpp"
 #include "runtime/vframe.hpp"
 #include "utilities/preserveException.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/runtime/javaFrameAnchor.hpp
--- a/src/share/vm/runtime/javaFrameAnchor.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/runtime/javaFrameAnchor.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -26,39 +26,7 @@
 #define SHARE_VM_RUNTIME_JAVAFRAMEANCHOR_HPP
 
 #include "utilities/globalDefinitions.hpp"
-#ifdef TARGET_OS_ARCH_linux_x86
-# include "orderAccess_linux_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_sparc
-# include "orderAccess_linux_sparc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_zero
-# include "orderAccess_linux_zero.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_solaris_x86
-# include "orderAccess_solaris_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_solaris_sparc
-# include "orderAccess_solaris_sparc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_windows_x86
-# include "orderAccess_windows_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_arm
-# include "orderAccess_linux_arm.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_ppc
-# include "orderAccess_linux_ppc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_aix_ppc
-# include "orderAccess_aix_ppc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_bsd_x86
-# include "orderAccess_bsd_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_bsd_zero
-# include "orderAccess_bsd_zero.inline.hpp"
-#endif
+#include "runtime/orderAccess.inline.hpp"
 
 //
 // An object for encapsulating the machine/os dependent part of a JavaThread frame state
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/runtime/mutex.cpp
--- a/src/share/vm/runtime/mutex.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/runtime/mutex.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -25,6 +25,7 @@
 
 #include "precompiled.hpp"
 #include "runtime/mutex.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/osThread.hpp"
 #include "runtime/thread.inline.hpp"
 #include "utilities/events.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/runtime/mutexLocker.cpp
--- a/src/share/vm/runtime/mutexLocker.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/runtime/mutexLocker.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -69,7 +69,7 @@
 Monitor* SerializePage_lock           = NULL;
 Monitor* Threads_lock                 = NULL;
 Monitor* CGC_lock                     = NULL;
-Mutex*   STS_init_lock                = NULL;
+Monitor* STS_lock                     = NULL;
 Monitor* SLT_lock                     = NULL;
 Monitor* iCMS_lock                    = NULL;
 Monitor* FullGCCount_lock             = NULL;
@@ -173,7 +173,7 @@
   def(tty_lock                     , Mutex  , event,       true ); // allow to lock in VM
 
   def(CGC_lock                   , Monitor, special,     true ); // coordinate between fore- and background GC
-  def(STS_init_lock              , Mutex,   leaf,        true );
+  def(STS_lock                   , Monitor, leaf,        true );
   if (UseConcMarkSweepGC) {
     def(iCMS_lock                  , Monitor, special,     true ); // CMS incremental mode start/stop notification
   }
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/runtime/mutexLocker.hpp
--- a/src/share/vm/runtime/mutexLocker.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/runtime/mutexLocker.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -79,7 +79,7 @@
                                                  // (also used by Safepoints too to block threads creation/destruction)
 extern Monitor* CGC_lock;                        // used for coordination between
                                                  // fore- & background GC threads.
-extern Mutex*   STS_init_lock;                   // coordinate initialization of SuspendibleThreadSets.
+extern Monitor* STS_lock;                        // used for joining/leaving SuspendibleThreadSet.
 extern Monitor* SLT_lock;                        // used in CMS GC for acquiring PLL
 extern Monitor* iCMS_lock;                       // CMS incremental mode start/stop notification
 extern Monitor* FullGCCount_lock;                // in support of "concurrent" full gc
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/runtime/objectMonitor.cpp
--- a/src/share/vm/runtime/objectMonitor.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/runtime/objectMonitor.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -32,6 +32,7 @@
 #include "runtime/mutexLocker.hpp"
 #include "runtime/objectMonitor.hpp"
 #include "runtime/objectMonitor.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/osThread.hpp"
 #include "runtime/stubRoutines.hpp"
 #include "runtime/thread.inline.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/runtime/orderAccess.inline.hpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/runtime/orderAccess.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2014 SAP AG. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_RUNTIME_ORDERACCESS_INLINE_HPP
+#define SHARE_VM_RUNTIME_ORDERACCESS_INLINE_HPP
+
+#include "runtime/orderAccess.hpp"
+
+// Linux
+#ifdef TARGET_OS_ARCH_linux_x86
+# include "orderAccess_linux_x86.inline.hpp"
+#endif
+#ifdef TARGET_OS_ARCH_linux_sparc
+# include "orderAccess_linux_sparc.inline.hpp"
+#endif
+#ifdef TARGET_OS_ARCH_linux_zero
+# include "orderAccess_linux_zero.inline.hpp"
+#endif
+#ifdef TARGET_OS_ARCH_linux_arm
+# include "orderAccess_linux_arm.inline.hpp"
+#endif
+#ifdef TARGET_OS_ARCH_linux_ppc
+# include "orderAccess_linux_ppc.inline.hpp"
+#endif
+
+// Solaris
+#ifdef TARGET_OS_ARCH_solaris_x86
+# include "orderAccess_solaris_x86.inline.hpp"
+#endif
+#ifdef TARGET_OS_ARCH_solaris_sparc
+# include "orderAccess_solaris_sparc.inline.hpp"
+#endif
+
+// Windows
+#ifdef TARGET_OS_ARCH_windows_x86
+# include "orderAccess_windows_x86.inline.hpp"
+#endif
+
+// AIX
+#ifdef TARGET_OS_ARCH_aix_ppc
+# include "orderAccess_aix_ppc.inline.hpp"
+#endif
+
+// BSD
+#ifdef TARGET_OS_ARCH_bsd_x86
+# include "orderAccess_bsd_x86.inline.hpp"
+#endif
+#ifdef TARGET_OS_ARCH_bsd_zero
+# include "orderAccess_bsd_zero.inline.hpp"
+#endif
+
+#endif // SHARE_VM_RUNTIME_ORDERACCESS_INLINE_HPP
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/runtime/perfMemory.cpp
--- a/src/share/vm/runtime/perfMemory.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/runtime/perfMemory.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -28,6 +28,7 @@
 #include "runtime/java.hpp"
 #include "runtime/mutex.hpp"
 #include "runtime/mutexLocker.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/os.hpp"
 #include "runtime/perfData.hpp"
 #include "runtime/perfMemory.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/runtime/prefetch.inline.hpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/runtime/prefetch.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_RUNTIME_PREFETCH_INLINE_HPP
+#define SHARE_VM_RUNTIME_PREFETCH_INLINE_HPP
+
+#include "runtime/prefetch.hpp"
+
+// Linux
+#ifdef TARGET_OS_ARCH_linux_x86
+# include "prefetch_linux_x86.inline.hpp"
+#endif
+#ifdef TARGET_OS_ARCH_linux_sparc
+# include "prefetch_linux_sparc.inline.hpp"
+#endif
+#ifdef TARGET_OS_ARCH_linux_zero
+# include "prefetch_linux_zero.inline.hpp"
+#endif
+#ifdef TARGET_OS_ARCH_linux_arm
+# include "prefetch_linux_arm.inline.hpp"
+#endif
+#ifdef TARGET_OS_ARCH_linux_ppc
+# include "prefetch_linux_ppc.inline.hpp"
+#endif
+
+// Solaris
+#ifdef TARGET_OS_ARCH_solaris_x86
+# include "prefetch_solaris_x86.inline.hpp"
+#endif
+#ifdef TARGET_OS_ARCH_solaris_sparc
+# include "prefetch_solaris_sparc.inline.hpp"
+#endif
+
+// Windows
+#ifdef TARGET_OS_ARCH_windows_x86
+# include "prefetch_windows_x86.inline.hpp"
+#endif
+
+// AIX
+#ifdef TARGET_OS_ARCH_aix_ppc
+# include "prefetch_aix_ppc.inline.hpp"
+#endif
+
+// BSD
+#ifdef TARGET_OS_ARCH_bsd_x86
+# include "prefetch_bsd_x86.inline.hpp"
+#endif
+#ifdef TARGET_OS_ARCH_bsd_zero
+# include "prefetch_bsd_zero.inline.hpp"
+#endif
+
+#endif // SHARE_VM_RUNTIME_PREFETCH_INLINE_HPP
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/runtime/safepoint.cpp
--- a/src/share/vm/runtime/safepoint.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/runtime/safepoint.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -41,6 +41,7 @@
 #include "runtime/frame.inline.hpp"
 #include "runtime/interfaceSupport.hpp"
 #include "runtime/mutexLocker.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/osThread.hpp"
 #include "runtime/safepoint.hpp"
 #include "runtime/signature.hpp"
@@ -75,7 +76,7 @@
 #endif
 #if INCLUDE_ALL_GCS
 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp"
-#include "gc_implementation/shared/concurrentGCThread.hpp"
+#include "gc_implementation/shared/suspendibleThreadSet.hpp"
 #endif // INCLUDE_ALL_GCS
 #ifdef COMPILER1
 #include "c1/c1_globals.hpp"
@@ -112,7 +113,7 @@
     // more-general mechanism below.  DLD (01/05).
     ConcurrentMarkSweepThread::synchronize(false);
   } else if (UseG1GC) {
-    ConcurrentGCThread::safepoint_synchronize();
+    SuspendibleThreadSet::synchronize();
   }
 #endif // INCLUDE_ALL_GCS
 
@@ -488,7 +489,7 @@
   if (UseConcMarkSweepGC) {
     ConcurrentMarkSweepThread::desynchronize(false);
   } else if (UseG1GC) {
-    ConcurrentGCThread::safepoint_desynchronize();
+    SuspendibleThreadSet::desynchronize();
   }
 #endif // INCLUDE_ALL_GCS
   // record this time so VMThread can keep track how much time has elasped
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/runtime/sweeper.cpp
--- a/src/share/vm/runtime/sweeper.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/runtime/sweeper.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -33,8 +33,10 @@
 #include "runtime/atomic.hpp"
 #include "runtime/compilationPolicy.hpp"
 #include "runtime/mutexLocker.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/os.hpp"
 #include "runtime/sweeper.hpp"
+#include "runtime/thread.inline.hpp"
 #include "runtime/vm_operations.hpp"
 #include "trace/tracing.hpp"
 #include "utilities/events.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/runtime/thread.cpp
--- a/src/share/vm/runtime/thread.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/runtime/thread.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -58,6 +58,7 @@
 #include "runtime/memprofiler.hpp"
 #include "runtime/mutexLocker.hpp"
 #include "runtime/objectMonitor.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "runtime/osThread.hpp"
 #include "runtime/safepoint.hpp"
 #include "runtime/sharedRuntime.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/runtime/thread.hpp
--- a/src/share/vm/runtime/thread.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/runtime/thread.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -436,18 +436,7 @@
   jlong allocated_bytes()               { return _allocated_bytes; }
   void set_allocated_bytes(jlong value) { _allocated_bytes = value; }
   void incr_allocated_bytes(jlong size) { _allocated_bytes += size; }
-  jlong cooked_allocated_bytes() {
-    jlong allocated_bytes = OrderAccess::load_acquire(&_allocated_bytes);
-    if (UseTLAB) {
-      size_t used_bytes = tlab().used_bytes();
-      if ((ssize_t)used_bytes > 0) {
-        // More-or-less valid tlab.  The load_acquire above should ensure
-        // that the result of the add is <= the instantaneous value
-        return allocated_bytes + used_bytes;
-      }
-    }
-    return allocated_bytes;
-  }
+  inline jlong cooked_allocated_bytes();
 
   TRACE_DATA* trace_data()              { return &_trace_data; }
 
@@ -1046,12 +1035,8 @@
 #else
   // Use membars when accessing volatile _thread_state. See
   // Threads::create_vm() for size checks.
-  JavaThreadState thread_state() const           {
-    return (JavaThreadState) OrderAccess::load_acquire((volatile jint*)&_thread_state);
-  }
-  void set_thread_state(JavaThreadState s)       {
-    OrderAccess::release_store((volatile jint*)&_thread_state, (jint)s);
-  }
+  inline JavaThreadState thread_state() const;
+  inline void set_thread_state(JavaThreadState s);
 #endif
   ThreadSafepointState *safepoint_state() const  { return _safepoint_state; }
   void set_safepoint_state(ThreadSafepointState *state) { _safepoint_state = state; }
@@ -1775,7 +1760,7 @@
   // clearing/querying jni attach status
   bool is_attaching_via_jni() const { return _jni_attach_state == _attaching_via_jni; }
   bool has_attached_via_jni() const { return is_attaching_via_jni() || _jni_attach_state == _attached_via_jni; }
-  void set_done_attaching_via_jni() { _jni_attach_state = _attached_via_jni; OrderAccess::fence(); }
+  inline void set_done_attaching_via_jni();
 private:
   // This field is used to determine if a thread has claimed
   // a par_id: it is UINT_MAX if the thread has not claimed a par_id;
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/runtime/thread.inline.hpp
--- a/src/share/vm/runtime/thread.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/runtime/thread.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -46,4 +46,32 @@
 
 #undef SHARE_VM_RUNTIME_THREAD_INLINE_HPP_SCOPE
 
+inline jlong Thread::cooked_allocated_bytes() {
+  jlong allocated_bytes = OrderAccess::load_acquire(&_allocated_bytes);
+  if (UseTLAB) {
+    size_t used_bytes = tlab().used_bytes();
+    if ((ssize_t)used_bytes > 0) {
+      // More-or-less valid tlab. The load_acquire above should ensure
+      // that the result of the add is <= the instantaneous value.
+      return allocated_bytes + used_bytes;
+    }
+  }
+  return allocated_bytes;
+}
+
+#ifdef PPC64
+inline JavaThreadState JavaThread::thread_state() const    {
+  return (JavaThreadState) OrderAccess::load_acquire((volatile jint*)&_thread_state);
+}
+
+inline void JavaThread::set_thread_state(JavaThreadState s) {
+  OrderAccess::release_store((volatile jint*)&_thread_state, (jint)s);
+}
+#endif
+
+inline void JavaThread::set_done_attaching_via_jni() {
+  _jni_attach_state = _attached_via_jni;
+  OrderAccess::fence();
+}
+
 #endif // SHARE_VM_RUNTIME_THREAD_INLINE_HPP
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/services/management.cpp
--- a/src/share/vm/services/management.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/services/management.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -39,6 +39,7 @@
 #include "runtime/jniHandles.hpp"
 #include "runtime/os.hpp"
 #include "runtime/serviceThread.hpp"
+#include "runtime/thread.inline.hpp"
 #include "services/classLoadingService.hpp"
 #include "services/diagnosticCommand.hpp"
 #include "services/diagnosticFramework.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/services/memTracker.cpp
--- a/src/share/vm/services/memTracker.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/services/memTracker.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -29,6 +29,7 @@
 #include "runtime/mutexLocker.hpp"
 #include "runtime/safepoint.hpp"
 #include "runtime/threadCritical.hpp"
+#include "runtime/thread.inline.hpp"
 #include "runtime/vm_operations.hpp"
 #include "services/memPtr.hpp"
 #include "services/memReporter.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/services/memoryManager.cpp
--- a/src/share/vm/services/memoryManager.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/services/memoryManager.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -28,6 +28,7 @@
 #include "oops/oop.inline.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/javaCalls.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "services/lowMemoryDetector.hpp"
 #include "services/management.hpp"
 #include "services/memoryManager.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/services/memoryPool.cpp
--- a/src/share/vm/services/memoryPool.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/services/memoryPool.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -29,6 +29,7 @@
 #include "oops/oop.inline.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/javaCalls.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "services/lowMemoryDetector.hpp"
 #include "services/management.hpp"
 #include "services/memoryManager.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/services/threadService.cpp
--- a/src/share/vm/services/threadService.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/services/threadService.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -33,6 +33,7 @@
 #include "runtime/init.hpp"
 #include "runtime/thread.hpp"
 #include "runtime/vframe.hpp"
+#include "runtime/thread.inline.hpp"
 #include "runtime/vmThread.hpp"
 #include "runtime/vm_operations.hpp"
 #include "services/threadService.hpp"
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/utilities/array.hpp
--- a/src/share/vm/utilities/array.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/utilities/array.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -28,6 +28,7 @@
 #include "memory/allocation.hpp"
 #include "memory/allocation.inline.hpp"
 #include "memory/metaspace.hpp"
+#include "runtime/orderAccess.hpp"
 
 // correct linkage required to compile w/o warnings
 // (must be on file level - cannot be local)
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/utilities/hashtable.inline.hpp
--- a/src/share/vm/utilities/hashtable.inline.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/utilities/hashtable.inline.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -26,6 +26,7 @@
 #define SHARE_VM_UTILITIES_HASHTABLE_INLINE_HPP
 
 #include "memory/allocation.inline.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "utilities/hashtable.hpp"
 #include "utilities/dtrace.hpp"
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/utilities/ostream.cpp
--- a/src/share/vm/utilities/ostream.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/utilities/ostream.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -24,6 +24,7 @@
 
 #include "precompiled.hpp"
 #include "compiler/compileLog.hpp"
+#include "gc_implementation/shared/gcId.hpp"
 #include "oops/oop.inline.hpp"
 #include "runtime/arguments.hpp"
 #include "utilities/defaultStream.hpp"
@@ -240,6 +241,14 @@
   return;
 }
 
+void outputStream::gclog_stamp(const GCId& gc_id) {
+  date_stamp(PrintGCDateStamps);
+  stamp(PrintGCTimeStamps);
+  if (PrintGCID) {
+    print("#%u: ", gc_id.id());
+  }
+}
+
 outputStream& outputStream::indent() {
   while (_position < _indentation) sp();
   return *this;
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/utilities/ostream.hpp
--- a/src/share/vm/utilities/ostream.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/utilities/ostream.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -28,6 +28,7 @@
 #include "memory/allocation.hpp"
 #include "runtime/timer.hpp"
 
+class GCId;
 DEBUG_ONLY(class ResourceMark;)
 
 // Output streams for printing
@@ -107,6 +108,7 @@
    void date_stamp(bool guard) {
      date_stamp(guard, "", ": ");
    }
+   void gclog_stamp(const GCId& gc_id);
 
    // portable printing of 64 bit integers
    void print_jlong(jlong value);
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/utilities/taskqueue.hpp
--- a/src/share/vm/utilities/taskqueue.hpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/utilities/taskqueue.hpp	Fri Jul 11 00:19:54 2014 -0700
@@ -28,40 +28,8 @@
 #include "memory/allocation.hpp"
 #include "memory/allocation.inline.hpp"
 #include "runtime/mutex.hpp"
+#include "runtime/orderAccess.inline.hpp"
 #include "utilities/stack.hpp"
-#ifdef TARGET_OS_ARCH_linux_x86
-# include "orderAccess_linux_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_sparc
-# include "orderAccess_linux_sparc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_zero
-# include "orderAccess_linux_zero.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_solaris_x86
-# include "orderAccess_solaris_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_solaris_sparc
-# include "orderAccess_solaris_sparc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_windows_x86
-# include "orderAccess_windows_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_arm
-# include "orderAccess_linux_arm.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_linux_ppc
-# include "orderAccess_linux_ppc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_aix_ppc
-# include "orderAccess_aix_ppc.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_bsd_x86
-# include "orderAccess_bsd_x86.inline.hpp"
-#endif
-#ifdef TARGET_OS_ARCH_bsd_zero
-# include "orderAccess_bsd_zero.inline.hpp"
-#endif
 
 // Simple TaskQueue stats that are collected by default in debug builds.
 
diff -r b67a3f81b630 -r d952af8cf67d src/share/vm/utilities/vmError.cpp
--- a/src/share/vm/utilities/vmError.cpp	Fri Jun 27 11:07:23 2014 +0100
+++ b/src/share/vm/utilities/vmError.cpp	Fri Jul 11 00:19:54 2014 -0700
@@ -30,7 +30,7 @@
 #include "runtime/frame.inline.hpp"
 #include "runtime/init.hpp"
 #include "runtime/os.hpp"
-#include "runtime/thread.hpp"
+#include "runtime/thread.inline.hpp"
 #include "runtime/vmThread.hpp"
 #include "runtime/vm_operations.hpp"
 #include "services/memTracker.hpp"
diff -r b67a3f81b630 -r d952af8cf67d test/compiler/stable/StableConfiguration.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/compiler/stable/StableConfiguration.java	Fri Jul 11 00:19:54 2014 -0700
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package java.lang.invoke;
+
+import java.lang.reflect.Method;
+import java.util.Properties;
+import sun.hotspot.WhiteBox;
+
+public class StableConfiguration {
+    static final WhiteBox WB = WhiteBox.getWhiteBox();
+    static final boolean isStableEnabled;
+    static final boolean isServerWithStable;
+
+    static {
+        Boolean value = WB.getBooleanVMFlag("FoldStableValues");
+        isStableEnabled = (value == null ? false : value);
+        isServerWithStable = isStableEnabled && get();
+        System.out.println("@Stable:         " + (isStableEnabled ? "enabled" : "disabled"));
+        System.out.println("Server Compiler: " + get());
+    }
+
+    // ::get() is among immediately compiled methods.
+    static boolean get() {
+        try {
+            Method m = StableConfiguration.class.getDeclaredMethod("get");
+            int level = WB.getMethodCompilationLevel(m);
+            if (level > 0) {
+              return (level == 4);
+            } else {
+              String javaVM = System.getProperty("java.vm.name", "");
+              if (javaVM.contains("Server")) return true;
+              if (javaVM.contains("Client")) return false;
+              throw new Error("Unknown VM type: "+javaVM);
+            }
+        } catch (NoSuchMethodException e) {
+            throw new Error(e);
+        }
+    }
+
+}
diff -r b67a3f81b630 -r d952af8cf67d test/compiler/stable/TestStableBoolean.java
--- a/test/compiler/stable/TestStableBoolean.java	Fri Jun 27 11:07:23 2014 +0100
+++ b/test/compiler/stable/TestStableBoolean.java	Fri Jul 11 00:19:54 2014 -0700
@@ -26,9 +26,11 @@
 /*
  * @test TestStableBoolean
  * @summary tests on stable fields and arrays
- * @library /testlibrary
- * @compile -XDignore.symbol.file TestStableBoolean.java
+ * @library /testlibrary /testlibrary/whitebox
+ * @build TestStableBoolean StableConfiguration sun.hotspot.WhiteBox
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
  * @run main ClassFileInstaller
+ *           java/lang/invoke/StableConfiguration
  *           java/lang/invoke/TestStableBoolean
  *           java/lang/invoke/TestStableBoolean$BooleanStable
  *           java/lang/invoke/TestStableBoolean$StaticBooleanStable
@@ -48,46 +50,60 @@
  *           java/lang/invoke/TestStableBoolean$NestedStableField3
  *           java/lang/invoke/TestStableBoolean$NestedStableField3$A
  *           java/lang/invoke/TestStableBoolean$DefaultValue
+ *           java/lang/invoke/TestStableBoolean$DefaultStaticValue
  *           java/lang/invoke/TestStableBoolean$ObjectArrayLowerDim2
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableBoolean
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableBoolean
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableBoolean
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableBoolean
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableBoolean
- *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableBoolean
  */
 package java.lang.invoke;
 
-import com.sun.management.HotSpotDiagnosticMXBean;
-import com.sun.management.VMOption;
-import sun.management.ManagementFactoryHelper;
 import java.lang.reflect.InvocationTargetException;
 
 public class TestStableBoolean {
+    static final boolean isStableEnabled    = StableConfiguration.isStableEnabled;
+    static final boolean isServerWithStable = StableConfiguration.isServerWithStable;
+
     public static void main(String[] args) throws Exception {
-        System.out.println("@Stable enabled: "+isStableEnabled);
-        System.out.println();
-
         run(DefaultValue.class);
         run(BooleanStable.class);
+        run(DefaultStaticValue.class);
         run(StaticBooleanStable.class);
         run(VolatileBooleanStable.class);
 
@@ -145,6 +161,21 @@
 
     /* ==================================================== */
 
+    static class DefaultStaticValue {
+        public static @Stable boolean v;
+
+        public static final DefaultStaticValue c = new DefaultStaticValue();
+        public static boolean get() { return c.v; }
+        public static void test() throws Exception {
+                        boolean val1 = get();
+            c.v = true; boolean val2 = get();
+            assertEquals(val1, false);
+            assertEquals(val2, true);
+        }
+    }
+
+    /* ==================================================== */
+
     static class StaticBooleanStable {
         public static @Stable boolean v;
 
@@ -188,14 +219,14 @@
                 c.v = new boolean[1]; c.v[0] = true;  boolean val1 = get();
                                       c.v[0] = false; boolean val2 = get();
                 assertEquals(val1, true);
-                assertEquals(val2, (isStableEnabled ? true : false));
+                assertEquals(val2, (isServerWithStable ? true : false));
             }
 
             {
                 c.v = new boolean[20]; c.v[10] = true;  boolean val1 = get1();
                                        c.v[10] = false; boolean val2 = get1();
                 assertEquals(val1, true);
-                assertEquals(val2, (isStableEnabled ? true : false));
+                assertEquals(val2, (isServerWithStable ? true : false));
             }
 
             {
@@ -220,19 +251,19 @@
                 c.v = new boolean[1][1]; c.v[0][0] = true;  boolean val1 = get();
                                          c.v[0][0] = false; boolean val2 = get();
                 assertEquals(val1, true);
-                assertEquals(val2, (isStableEnabled ? true : false));
+                assertEquals(val2, (isServerWithStable ? true : false));
 
                 c.v = new boolean[1][1]; c.v[0][0] = false; boolean val3 = get();
-                assertEquals(val3, (isStableEnabled ? true : false));
+                assertEquals(val3, (isServerWithStable ? true : false));
 
                 c.v[0] = new boolean[1]; c.v[0][0] = false; boolean val4 = get();
-                assertEquals(val4, (isStableEnabled ? true : false));
+                assertEquals(val4, (isServerWithStable ? true : false));
             }
 
             {
                 c.v = new boolean[1][1]; boolean[] val1 = get1();
                 c.v[0] = new boolean[1]; boolean[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -258,28 +289,28 @@
                 c.v = new boolean[1][1][1]; c.v[0][0][0] = true;  boolean val1 = get();
                                             c.v[0][0][0] = false; boolean val2 = get();
                 assertEquals(val1, true);
-                assertEquals(val2, (isStableEnabled ? true : false));
+                assertEquals(val2, (isServerWithStable ? true : false));
 
                 c.v = new boolean[1][1][1]; c.v[0][0][0] = false; boolean val3 = get();
-                assertEquals(val3, (isStableEnabled ? true : false));
+                assertEquals(val3, (isServerWithStable ? true : false));
 
                 c.v[0] = new boolean[1][1]; c.v[0][0][0] = false; boolean val4 = get();
-                assertEquals(val4, (isStableEnabled ? true : false));
+                assertEquals(val4, (isServerWithStable ? true : false));
 
                 c.v[0][0] = new boolean[1]; c.v[0][0][0] = false; boolean val5 = get();
-                assertEquals(val5, (isStableEnabled ? true : false));
+                assertEquals(val5, (isServerWithStable ? true : false));
             }
 
             {
                 c.v = new boolean[1][1][1]; boolean[] val1 = get1();
                 c.v[0][0] = new boolean[1]; boolean[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new boolean[1][1][1]; boolean[][] val1 = get2();
                 c.v[0] = new boolean[1][1]; boolean[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -306,37 +337,37 @@
                 c.v = new boolean[1][1][1][1]; c.v[0][0][0][0] = true;  boolean val1 = get();
                                                c.v[0][0][0][0] = false; boolean val2 = get();
                 assertEquals(val1, true);
-                assertEquals(val2, (isStableEnabled ? true : false));
+                assertEquals(val2, (isServerWithStable ? true : false));
 
                 c.v = new boolean[1][1][1][1]; c.v[0][0][0][0] = false; boolean val3 = get();
-                assertEquals(val3, (isStableEnabled ? true : false));
+                assertEquals(val3, (isServerWithStable ? true : false));
 
                 c.v[0] = new boolean[1][1][1]; c.v[0][0][0][0] = false; boolean val4 = get();
-                assertEquals(val4, (isStableEnabled ? true : false));
+                assertEquals(val4, (isServerWithStable ? true : false));
 
                 c.v[0][0] = new boolean[1][1]; c.v[0][0][0][0] = false; boolean val5 = get();
-                assertEquals(val5, (isStableEnabled ? true : false));
+                assertEquals(val5, (isServerWithStable ? true : false));
 
                 c.v[0][0][0] = new boolean[1]; c.v[0][0][0][0] = false; boolean val6 = get();
-                assertEquals(val6, (isStableEnabled ? true : false));
+                assertEquals(val6, (isServerWithStable ? true : false));
             }
 
             {
                 c.v = new boolean[1][1][1][1]; boolean[] val1 = get1();
                 c.v[0][0][0] = new boolean[1]; boolean[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new boolean[1][1][1][1]; boolean[][] val1 = get2();
                 c.v[0][0] = new boolean[1][1]; boolean[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new boolean[1][1][1][1]; boolean[][][] val1 = get3();
                 c.v[0] = new boolean[1][1][1]; boolean[][][] val2 = get3();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -399,7 +430,7 @@
                 c.v = new boolean[1][1]; c.v[0] = new boolean[0]; boolean[] val1 = get1();
                                          c.v[0] = new boolean[0]; boolean[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -435,14 +466,14 @@
                 c.v = new boolean[1][1][1]; c.v[0][0] = new boolean[0]; boolean[] val1 = get1();
                                             c.v[0][0] = new boolean[0]; boolean[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new boolean[1][1][1]; c.v[0] = new boolean[0][0]; boolean[][] val1 = get2();
                                             c.v[0] = new boolean[0][0]; boolean[][] val2 = get2();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -577,7 +608,7 @@
                                elem.a = false; boolean val3 = get(); boolean val4 = get1();
 
                 assertEquals(val1, true);
-                assertEquals(val3, (isStableEnabled ? true : false));
+                assertEquals(val3, (isServerWithStable ? true : false));
 
                 assertEquals(val2, true);
                 assertEquals(val4, false);
@@ -611,17 +642,4 @@
             }
         }
     }
-
-    static final boolean isStableEnabled;
-    static {
-        HotSpotDiagnosticMXBean diagnostic
-                = ManagementFactoryHelper.getDiagnosticMXBean();
-        VMOption tmp;
-        try {
-            tmp = diagnostic.getVMOption("FoldStableValues");
-        } catch (IllegalArgumentException e) {
-            tmp = null;
-        }
-        isStableEnabled = (tmp == null ? false : Boolean.parseBoolean(tmp.getValue()));
-    }
 }
diff -r b67a3f81b630 -r d952af8cf67d test/compiler/stable/TestStableByte.java
--- a/test/compiler/stable/TestStableByte.java	Fri Jun 27 11:07:23 2014 +0100
+++ b/test/compiler/stable/TestStableByte.java	Fri Jul 11 00:19:54 2014 -0700
@@ -26,9 +26,11 @@
 /*
  * @test TestStableByte
  * @summary tests on stable fields and arrays
- * @library /testlibrary
- * @compile -XDignore.symbol.file TestStableByte.java
+ * @library /testlibrary /testlibrary/whitebox
+ * @build TestStableByte StableConfiguration sun.hotspot.WhiteBox
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
  * @run main ClassFileInstaller
+ *           java/lang/invoke/StableConfiguration
  *           java/lang/invoke/TestStableByte
  *           java/lang/invoke/TestStableByte$ByteStable
  *           java/lang/invoke/TestStableByte$StaticByteStable
@@ -48,46 +50,60 @@
  *           java/lang/invoke/TestStableByte$NestedStableField3
  *           java/lang/invoke/TestStableByte$NestedStableField3$A
  *           java/lang/invoke/TestStableByte$DefaultValue
+ *           java/lang/invoke/TestStableByte$DefaultStaticValue
  *           java/lang/invoke/TestStableByte$ObjectArrayLowerDim2
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableByte
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableByte
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableByte
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableByte
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableByte
- *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableByte
  */
 package java.lang.invoke;
 
-import com.sun.management.HotSpotDiagnosticMXBean;
-import com.sun.management.VMOption;
-import sun.management.ManagementFactoryHelper;
 import java.lang.reflect.InvocationTargetException;
 
 public class TestStableByte {
+    static final boolean isStableEnabled    = StableConfiguration.isStableEnabled;
+    static final boolean isServerWithStable = StableConfiguration.isServerWithStable;
+
     public static void main(String[] args) throws Exception {
-        System.out.println("@Stable enabled: "+isStableEnabled);
-        System.out.println();
-
         run(DefaultValue.class);
         run(ByteStable.class);
+        run(DefaultStaticValue.class);
         run(StaticByteStable.class);
         run(VolatileByteStable.class);
 
@@ -145,6 +161,21 @@
 
     /* ==================================================== */
 
+    static class DefaultStaticValue {
+        public static @Stable byte v;
+
+        public static final DefaultStaticValue c = new DefaultStaticValue();
+        public static byte get() { return c.v; }
+        public static void test() throws Exception {
+                     byte val1 = get();
+            c.v = 1; byte val2 = get();
+            assertEquals(val1, 0);
+            assertEquals(val2, 1);
+        }
+    }
+
+    /* ==================================================== */
+
     static class StaticByteStable {
         public static @Stable byte v;
 
@@ -188,20 +219,22 @@
                 c.v = new byte[1]; c.v[0] = 1; byte val1 = get();
                                    c.v[0] = 2; byte val2 = get();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new byte[1]; c.v[0] = 3; byte val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
             }
 
             {
                 c.v = new byte[20]; c.v[10] = 1; byte val1 = get1();
                                     c.v[10] = 2; byte val2 = get1();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new byte[20]; c.v[10] = 3; byte val3 = get1();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
             }
 
             {
@@ -226,19 +259,21 @@
                 c.v = new byte[1][1]; c.v[0][0] = 1; byte val1 = get();
                                       c.v[0][0] = 2; byte val2 = get();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new byte[1][1]; c.v[0][0] = 3; byte val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
 
                 c.v[0] = new byte[1]; c.v[0][0] = 4; byte val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1 : 4));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 4));
             }
 
             {
                 c.v = new byte[1][1]; byte[] val1 = get1();
                 c.v[0] = new byte[1]; byte[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -264,28 +299,31 @@
                 c.v = new byte[1][1][1]; c.v[0][0][0] = 1; byte val1 = get();
                                          c.v[0][0][0] = 2; byte val2 = get();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new byte[1][1][1]; c.v[0][0][0] = 3; byte val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
 
                 c.v[0] = new byte[1][1]; c.v[0][0][0] = 4; byte val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1 : 4));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 4));
 
                 c.v[0][0] = new byte[1]; c.v[0][0][0] = 5; byte val5 = get();
-                assertEquals(val5, (isStableEnabled ? 1 : 5));
+                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 5));
             }
 
             {
                 c.v = new byte[1][1][1]; byte[] val1 = get1();
                 c.v[0][0] = new byte[1]; byte[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new byte[1][1][1]; byte[][] val1 = get2();
                 c.v[0] = new byte[1][1]; byte[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -312,37 +350,41 @@
                 c.v = new byte[1][1][1][1]; c.v[0][0][0][0] = 1; byte val1 = get();
                                             c.v[0][0][0][0] = 2; byte val2 = get();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new byte[1][1][1][1]; c.v[0][0][0][0] = 3; byte val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
 
                 c.v[0] = new byte[1][1][1]; c.v[0][0][0][0] = 4; byte val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1 : 4));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 4));
 
                 c.v[0][0] = new byte[1][1]; c.v[0][0][0][0] = 5; byte val5 = get();
-                assertEquals(val5, (isStableEnabled ? 1 : 5));
+                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 5));
 
                 c.v[0][0][0] = new byte[1]; c.v[0][0][0][0] = 6; byte val6 = get();
-                assertEquals(val6, (isStableEnabled ? 1 : 6));
+                assertEquals(val6, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 6));
             }
 
             {
                 c.v = new byte[1][1][1][1]; byte[] val1 = get1();
                 c.v[0][0][0] = new byte[1]; byte[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new byte[1][1][1][1]; byte[][] val1 = get2();
                 c.v[0][0] = new byte[1][1]; byte[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new byte[1][1][1][1]; byte[][][] val1 = get3();
                 c.v[0] = new byte[1][1][1]; byte[][][] val2 = get3();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -404,7 +446,7 @@
                 c.v = new byte[1][1]; c.v[0] = new byte[0]; byte[] val1 = get1();
                                      c.v[0] = new byte[0]; byte[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -440,14 +482,14 @@
                 c.v = new byte[1][1][1]; c.v[0][0] = new byte[0]; byte[] val1 = get1();
                                          c.v[0][0] = new byte[0]; byte[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new byte[1][1][1]; c.v[0] = new byte[0][0]; byte[][] val1 = get2();
                                          c.v[0] = new byte[0][0]; byte[][] val2 = get2();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -582,7 +624,7 @@
                                elem.a = 2; byte val3 = get(); byte val4 = get1();
 
                 assertEquals(val1, 1);
-                assertEquals(val3, (isStableEnabled ? 1 : 2));
+                assertEquals(val3, (isServerWithStable ? 1 : 2));
 
                 assertEquals(val2, 1);
                 assertEquals(val4, 2);
@@ -616,17 +658,4 @@
             }
         }
     }
-
-    static final boolean isStableEnabled;
-    static {
-        HotSpotDiagnosticMXBean diagnostic
-                = ManagementFactoryHelper.getDiagnosticMXBean();
-        VMOption tmp;
-        try {
-            tmp = diagnostic.getVMOption("FoldStableValues");
-        } catch (IllegalArgumentException e) {
-            tmp = null;
-        }
-        isStableEnabled = (tmp == null ? false : Boolean.parseBoolean(tmp.getValue()));
-    }
 }
diff -r b67a3f81b630 -r d952af8cf67d test/compiler/stable/TestStableChar.java
--- a/test/compiler/stable/TestStableChar.java	Fri Jun 27 11:07:23 2014 +0100
+++ b/test/compiler/stable/TestStableChar.java	Fri Jul 11 00:19:54 2014 -0700
@@ -26,9 +26,11 @@
 /*
  * @test TestStableChar
  * @summary tests on stable fields and arrays
- * @library /testlibrary
- * @compile -XDignore.symbol.file TestStableChar.java
+ * @library /testlibrary /testlibrary/whitebox
+ * @build TestStableChar StableConfiguration sun.hotspot.WhiteBox
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
  * @run main ClassFileInstaller
+ *           java/lang/invoke/StableConfiguration
  *           java/lang/invoke/TestStableChar
  *           java/lang/invoke/TestStableChar$CharStable
  *           java/lang/invoke/TestStableChar$StaticCharStable
@@ -48,46 +50,60 @@
  *           java/lang/invoke/TestStableChar$NestedStableField3
  *           java/lang/invoke/TestStableChar$NestedStableField3$A
  *           java/lang/invoke/TestStableChar$DefaultValue
+ *           java/lang/invoke/TestStableChar$DefaultStaticValue
  *           java/lang/invoke/TestStableChar$ObjectArrayLowerDim2
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableChar
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableChar
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableChar
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableChar
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableChar
- *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableChar
  */
 package java.lang.invoke;
 
-import com.sun.management.HotSpotDiagnosticMXBean;
-import com.sun.management.VMOption;
-import sun.management.ManagementFactoryHelper;
 import java.lang.reflect.InvocationTargetException;
 
 public class TestStableChar {
+    static final boolean isStableEnabled    = StableConfiguration.isStableEnabled;
+    static final boolean isServerWithStable = StableConfiguration.isServerWithStable;
+
     public static void main(String[] args) throws Exception {
-        System.out.println("@Stable enabled: "+isStableEnabled);
-        System.out.println();
-
         run(DefaultValue.class);
         run(CharStable.class);
+        run(DefaultStaticValue.class);
         run(StaticCharStable.class);
         run(VolatileCharStable.class);
 
@@ -145,6 +161,21 @@
 
     /* ==================================================== */
 
+    static class DefaultStaticValue {
+        public static @Stable char v;
+
+        public static final DefaultStaticValue c = new DefaultStaticValue();
+        public static char get() { return c.v; }
+        public static void test() throws Exception {
+                       char val1 = get();
+            c.v = 'a'; char val2 = get();
+            assertEquals(val1, 0);
+            assertEquals(val2, 'a');
+        }
+    }
+
+    /* ==================================================== */
+
     static class StaticCharStable {
         public @Stable char v;
 
@@ -188,20 +219,22 @@
                 c.v = new char[1]; c.v[0] = 'a'; char val1 = get();
                                    c.v[0] = 'b'; char val2 = get();
                 assertEquals(val1, 'a');
-                assertEquals(val2, (isStableEnabled ? 'a' : 'b'));
+                assertEquals(val2, (isServerWithStable ? 'a' : 'b'));
 
                 c.v = new char[1]; c.v[0] = 'c'; char val3 = get();
-                assertEquals(val3, (isStableEnabled ? 'a' : 'c'));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 'a' : 'b')
+                                                    : 'c'));
             }
 
             {
                 c.v = new char[20]; c.v[10] = 'a'; char val1 = get1();
                                     c.v[10] = 'b'; char val2 = get1();
                 assertEquals(val1, 'a');
-                assertEquals(val2, (isStableEnabled ? 'a' : 'b'));
+                assertEquals(val2, (isServerWithStable ? 'a' : 'b'));
 
                 c.v = new char[20]; c.v[10] = 'c'; char val3 = get1();
-                assertEquals(val3, (isStableEnabled ? 'a' : 'c'));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 'a' : 'b')
+                                                    : 'c'));
             }
 
             {
@@ -226,19 +259,21 @@
                 c.v = new char[1][1]; c.v[0][0] = 'a'; char val1 = get();
                                       c.v[0][0] = 'b'; char val2 = get();
                 assertEquals(val1, 'a');
-                assertEquals(val2, (isStableEnabled ? 'a' : 'b'));
+                assertEquals(val2, (isServerWithStable ? 'a' : 'b'));
 
                 c.v = new char[1][1]; c.v[0][0] = 'c'; char val3 = get();
-                assertEquals(val3, (isStableEnabled ? 'a' : 'c'));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 'a' : 'b')
+                                                    : 'c'));
 
                 c.v[0] = new char[1]; c.v[0][0] = 'd'; char val4 = get();
-                assertEquals(val4, (isStableEnabled ? 'a' : 'd'));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 'a' : 'b')
+                                                    : 'd'));
             }
 
             {
                 c.v = new char[1][1]; char[] val1 = get1();
                 c.v[0] = new char[1]; char[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -264,28 +299,31 @@
                 c.v = new char[1][1][1]; c.v[0][0][0] = 'a'; char val1 = get();
                                          c.v[0][0][0] = 'b'; char val2 = get();
                 assertEquals(val1, 'a');
-                assertEquals(val2, (isStableEnabled ? 'a' : 'b'));
+                assertEquals(val2, (isServerWithStable ? 'a' : 'b'));
 
                 c.v = new char[1][1][1]; c.v[0][0][0] = 'c'; char val3 = get();
-                assertEquals(val3, (isStableEnabled ? 'a' : 'c'));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 'a' : 'b')
+                                                    : 'c'));
 
                 c.v[0] = new char[1][1]; c.v[0][0][0] = 'd'; char val4 = get();
-                assertEquals(val4, (isStableEnabled ? 'a' : 'd'));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 'a' : 'b')
+                                                    : 'd'));
 
                 c.v[0][0] = new char[1]; c.v[0][0][0] = 'e'; char val5 = get();
-                assertEquals(val5, (isStableEnabled ? 'a' : 'e'));
+                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 'a' : 'b')
+                                                    : 'e'));
             }
 
             {
                 c.v = new char[1][1][1]; char[] val1 = get1();
                 c.v[0][0] = new char[1]; char[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new char[1][1][1]; char[][] val1 = get2();
                 c.v[0] = new char[1][1]; char[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -312,37 +350,41 @@
                 c.v = new char[1][1][1][1]; c.v[0][0][0][0] = 'a'; char val1 = get();
                                             c.v[0][0][0][0] = 'b'; char val2 = get();
                 assertEquals(val1, 'a');
-                assertEquals(val2, (isStableEnabled ? 'a' : 'b'));
+                assertEquals(val2, (isServerWithStable ? 'a' : 'b'));
 
                 c.v = new char[1][1][1][1]; c.v[0][0][0][0] = 'c'; char val3 = get();
-                assertEquals(val3, (isStableEnabled ? 'a' : 'c'));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 'a' : 'b')
+                                                    : 'c'));
 
                 c.v[0] = new char[1][1][1]; c.v[0][0][0][0] = 'd'; char val4 = get();
-                assertEquals(val4, (isStableEnabled ? 'a' : 'd'));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 'a' : 'b')
+                                                    : 'd'));
 
                 c.v[0][0] = new char[1][1]; c.v[0][0][0][0] = 'e'; char val5 = get();
-                assertEquals(val5, (isStableEnabled ? 'a' : 'e'));
+                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 'a' : 'b')
+                                                    : 'e'));
 
                 c.v[0][0][0] = new char[1]; c.v[0][0][0][0] = 'f'; char val6 = get();
-                assertEquals(val6, (isStableEnabled ? 'a' : 'f'));
+                assertEquals(val6, (isStableEnabled ? (isServerWithStable ? 'a' : 'b')
+                                                    : 'f'));
             }
 
             {
                 c.v = new char[1][1][1][1]; char[] val1 = get1();
                 c.v[0][0][0] = new char[1]; char[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new char[1][1][1][1]; char[][] val1 = get2();
                 c.v[0][0] = new char[1][1]; char[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new char[1][1][1][1]; char[][][] val1 = get3();
                 c.v[0] = new char[1][1][1]; char[][][] val2 = get3();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -350,7 +392,6 @@
                 c.v = new char[1][1][1][1]; char[][][][] val2 = get4();
                 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
             }
-
         }
     }
 
@@ -403,7 +444,7 @@
                 c.v = new char[1][1]; c.v[0] = new char[0]; char[] val1 = get1();
                                       c.v[0] = new char[0]; char[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -439,14 +480,14 @@
                 c.v = new char[1][1][1]; c.v[0][0] = new char[0]; char[] val1 = get1();
                                          c.v[0][0] = new char[0]; char[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new char[1][1][1]; c.v[0] = new char[0][0]; char[][] val1 = get2();
                                          c.v[0] = new char[0][0]; char[][] val2 = get2();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -581,7 +622,7 @@
                                elem.a = 'b'; char val3 = get(); char val4 = get1();
 
                 assertEquals(val1, 'a');
-                assertEquals(val3, (isStableEnabled ? 'a' : 'b'));
+                assertEquals(val3, (isServerWithStable ? 'a' : 'b'));
 
                 assertEquals(val2, 'a');
                 assertEquals(val4, 'b');
@@ -615,17 +656,4 @@
             }
         }
     }
-
-    static final boolean isStableEnabled;
-    static {
-        HotSpotDiagnosticMXBean diagnostic
-                = ManagementFactoryHelper.getDiagnosticMXBean();
-        VMOption tmp;
-        try {
-            tmp = diagnostic.getVMOption("FoldStableValues");
-        } catch (IllegalArgumentException e) {
-            tmp = null;
-        }
-        isStableEnabled = (tmp == null ? false : Boolean.parseBoolean(tmp.getValue()));
-    }
 }
diff -r b67a3f81b630 -r d952af8cf67d test/compiler/stable/TestStableDouble.java
--- a/test/compiler/stable/TestStableDouble.java	Fri Jun 27 11:07:23 2014 +0100
+++ b/test/compiler/stable/TestStableDouble.java	Fri Jul 11 00:19:54 2014 -0700
@@ -26,9 +26,11 @@
 /*
  * @test TestStableDouble
  * @summary tests on stable fields and arrays
- * @library /testlibrary
- * @compile -XDignore.symbol.file TestStableDouble.java
+ * @library /testlibrary /testlibrary/whitebox
+ * @build TestStableDouble StableConfiguration sun.hotspot.WhiteBox
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
  * @run main ClassFileInstaller
+ *           java/lang/invoke/StableConfiguration
  *           java/lang/invoke/TestStableDouble
  *           java/lang/invoke/TestStableDouble$DoubleStable
  *           java/lang/invoke/TestStableDouble$StaticDoubleStable
@@ -48,46 +50,60 @@
  *           java/lang/invoke/TestStableDouble$NestedStableField3
  *           java/lang/invoke/TestStableDouble$NestedStableField3$A
  *           java/lang/invoke/TestStableDouble$DefaultValue
+ *           java/lang/invoke/TestStableDouble$DefaultStaticValue
  *           java/lang/invoke/TestStableDouble$ObjectArrayLowerDim2
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableDouble
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableDouble
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableDouble
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableDouble
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableDouble
- *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableDouble
  */
 package java.lang.invoke;
 
-import com.sun.management.HotSpotDiagnosticMXBean;
-import com.sun.management.VMOption;
-import sun.management.ManagementFactoryHelper;
 import java.lang.reflect.InvocationTargetException;
 
 public class TestStableDouble {
+    static final boolean isStableEnabled    = StableConfiguration.isStableEnabled;
+    static final boolean isServerWithStable = StableConfiguration.isServerWithStable;
+
     public static void main(String[] args) throws Exception {
-        System.out.println("@Stable enabled: "+isStableEnabled);
-        System.out.println();
-
         run(DefaultValue.class);
         run(DoubleStable.class);
+        run(DefaultStaticValue.class);
         run(StaticDoubleStable.class);
         run(VolatileDoubleStable.class);
 
@@ -145,6 +161,21 @@
 
     /* ==================================================== */
 
+    static class DefaultStaticValue {
+        public static @Stable double v;
+
+        public static final DefaultStaticValue c = new DefaultStaticValue();
+        public static double get() { return c.v; }
+        public static void test() throws Exception {
+                       double val1 = get();
+            c.v = 1.0; double val2 = get();
+            assertEquals(val1, 0);
+            assertEquals(val2, 1.0);
+        }
+    }
+
+    /* ==================================================== */
+
     static class StaticDoubleStable {
         public static @Stable double v;
 
@@ -188,20 +219,22 @@
                 c.v = new double[1]; c.v[0] = 1.0; double val1 = get();
                                      c.v[0] = 2.0; double val2 = get();
                 assertEquals(val1, 1.0);
-                assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));
+                assertEquals(val2, (isServerWithStable ? 1.0 : 2.0));
 
                 c.v = new double[1]; c.v[0] = 3.0; double val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1.0 : 2.0)
+                                                    : 3.0));
             }
 
             {
                 c.v = new double[20]; c.v[10] = 1.0; double val1 = get1();
                                       c.v[10] = 2.0; double val2 = get1();
                 assertEquals(val1, 1.0);
-                assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));
+                assertEquals(val2, (isServerWithStable ? 1.0 : 2.0));
 
                 c.v = new double[20]; c.v[10] = 3.0; double val3 = get1();
-                assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1.0 : 2.0)
+                                                    : 3.0));
             }
 
             {
@@ -226,19 +259,21 @@
                 c.v = new double[1][1]; c.v[0][0] = 1.0; double val1 = get();
                                         c.v[0][0] = 2.0; double val2 = get();
                 assertEquals(val1, 1.0);
-                assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));
+                assertEquals(val2, (isServerWithStable ? 1.0 : 2.0));
 
                 c.v = new double[1][1]; c.v[0][0] = 3.0; double val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1.0 : 2.0)
+                                                    : 3.0));
 
                 c.v[0] = new double[1]; c.v[0][0] = 4.0; double val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1.0 : 4.0));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1.0 : 2.0)
+                                                    : 4.0));
             }
 
             {
                 c.v = new double[1][1]; double[] val1 = get1();
                 c.v[0] = new double[1]; double[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -264,28 +299,31 @@
                 c.v = new double[1][1][1]; c.v[0][0][0] = 1.0; double val1 = get();
                                            c.v[0][0][0] = 2.0; double val2 = get();
                 assertEquals(val1, 1.0);
-                assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));
+                assertEquals(val2, (isServerWithStable ? 1.0 : 2.0));
 
                 c.v = new double[1][1][1]; c.v[0][0][0] = 3.0; double val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1.0 : 2.0)
+                                                    : 3.0));
 
                 c.v[0] = new double[1][1]; c.v[0][0][0] = 4.0; double val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1.0 : 4.0));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1.0 : 2.0)
+                                                    : 4.0));
 
                 c.v[0][0] = new double[1]; c.v[0][0][0] = 5.0; double val5 = get();
-                assertEquals(val5, (isStableEnabled ? 1.0 : 5.0));
+                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 1.0 : 2.0)
+                                                    : 5.0));
             }
 
             {
                 c.v = new double[1][1][1]; double[] val1 = get1();
                 c.v[0][0] = new double[1]; double[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new double[1][1][1]; double[][] val1 = get2();
                 c.v[0] = new double[1][1]; double[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -312,37 +350,41 @@
                 c.v = new double[1][1][1][1]; c.v[0][0][0][0] = 1.0; double val1 = get();
                                               c.v[0][0][0][0] = 2.0; double val2 = get();
                 assertEquals(val1, 1.0);
-                assertEquals(val2, (isStableEnabled ? 1.0 : 2.0));
+                assertEquals(val2, (isServerWithStable ? 1.0 : 2.0));
 
                 c.v = new double[1][1][1][1]; c.v[0][0][0][0] = 3.0; double val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1.0 : 3.0));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1.0 : 2.0)
+                                                    : 3.0));
 
                 c.v[0] = new double[1][1][1]; c.v[0][0][0][0] = 4.0; double val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1.0 : 4.0));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1.0 : 2.0)
+                                                    : 4.0));
 
                 c.v[0][0] = new double[1][1]; c.v[0][0][0][0] = 5.0; double val5 = get();
-                assertEquals(val5, (isStableEnabled ? 1.0 : 5.0));
+                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 1.0 : 2.0)
+                                                    : 5.0));
 
                 c.v[0][0][0] = new double[1]; c.v[0][0][0][0] = 6.0; double val6 = get();
-                assertEquals(val6, (isStableEnabled ? 1.0 : 6.0));
+                assertEquals(val6, (isStableEnabled ? (isServerWithStable ? 1.0 : 2.0)
+                                                    : 6.0));
             }
 
             {
                 c.v = new double[1][1][1][1]; double[] val1 = get1();
                 c.v[0][0][0] = new double[1]; double[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new double[1][1][1][1]; double[][] val1 = get2();
                 c.v[0][0] = new double[1][1]; double[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new double[1][1][1][1]; double[][][] val1 = get3();
                 c.v[0] = new double[1][1][1]; double[][][] val2 = get3();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -350,13 +392,11 @@
                 c.v = new double[1][1][1][1]; double[][][][] val2 = get4();
                 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
             }
-
         }
     }
 
     /* ==================================================== */
     // Dynamic Dim is higher than static
-
     static class ObjectArrayLowerDim0 {
         public @Stable Object v;
 
@@ -404,7 +444,7 @@
                 c.v = new double[1][1]; c.v[0] = new double[0]; double[] val1 = get1();
                                         c.v[0] = new double[0]; double[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -440,14 +480,14 @@
                 c.v = new double[1][1][1]; c.v[0][0] = new double[0]; double[] val1 = get1();
                                            c.v[0][0] = new double[0]; double[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new double[1][1][1]; c.v[0] = new double[0][0]; double[][] val1 = get2();
                                            c.v[0] = new double[0][0]; double[][] val2 = get2();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -582,7 +622,7 @@
                                elem.a = 2.0; double val3 = get(); double val4 = get1();
 
                 assertEquals(val1, 1.0);
-                assertEquals(val3, (isStableEnabled ? 1.0 : 2.0));
+                assertEquals(val3, (isServerWithStable ? 1.0 : 2.0));
 
                 assertEquals(val2, 1.0);
                 assertEquals(val4, 2.0);
@@ -616,17 +656,4 @@
             }
         }
     }
-
-    static final boolean isStableEnabled;
-    static {
-        HotSpotDiagnosticMXBean diagnostic
-                = ManagementFactoryHelper.getDiagnosticMXBean();
-        VMOption tmp;
-        try {
-            tmp = diagnostic.getVMOption("FoldStableValues");
-        } catch (IllegalArgumentException e) {
-            tmp = null;
-        }
-        isStableEnabled = (tmp == null ? false : Boolean.parseBoolean(tmp.getValue()));
-    }
 }
diff -r b67a3f81b630 -r d952af8cf67d test/compiler/stable/TestStableFloat.java
--- a/test/compiler/stable/TestStableFloat.java	Fri Jun 27 11:07:23 2014 +0100
+++ b/test/compiler/stable/TestStableFloat.java	Fri Jul 11 00:19:54 2014 -0700
@@ -26,9 +26,11 @@
 /*
  * @test TestStableFloat
  * @summary tests on stable fields and arrays
- * @library /testlibrary
- * @compile -XDignore.symbol.file TestStableFloat.java
+ * @library /testlibrary /testlibrary/whitebox
+ * @build TestStableFloat StableConfiguration sun.hotspot.WhiteBox
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
  * @run main ClassFileInstaller
+ *           java/lang/invoke/StableConfiguration
  *           java/lang/invoke/TestStableFloat
  *           java/lang/invoke/TestStableFloat$FloatStable
  *           java/lang/invoke/TestStableFloat$StaticFloatStable
@@ -48,46 +50,60 @@
  *           java/lang/invoke/TestStableFloat$NestedStableField3
  *           java/lang/invoke/TestStableFloat$NestedStableField3$A
  *           java/lang/invoke/TestStableFloat$DefaultValue
+ *           java/lang/invoke/TestStableFloat$DefaultStaticValue
  *           java/lang/invoke/TestStableFloat$ObjectArrayLowerDim2
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableFloat
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableFloat
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableFloat
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableFloat
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableFloat
- *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableFloat
  */
 package java.lang.invoke;
 
-import com.sun.management.HotSpotDiagnosticMXBean;
-import com.sun.management.VMOption;
-import sun.management.ManagementFactoryHelper;
 import java.lang.reflect.InvocationTargetException;
 
 public class TestStableFloat {
+    static final boolean isStableEnabled    = StableConfiguration.isStableEnabled;
+    static final boolean isServerWithStable = StableConfiguration.isServerWithStable;
+
     public static void main(String[] args) throws Exception {
-        System.out.println("@Stable enabled: "+isStableEnabled);
-        System.out.println();
-
         run(DefaultValue.class);
         run(FloatStable.class);
+        run(DefaultStaticValue.class);
         run(StaticFloatStable.class);
         run(VolatileFloatStable.class);
 
@@ -145,6 +161,21 @@
 
     /* ==================================================== */
 
+    static class DefaultStaticValue {
+        public static @Stable float v;
+
+        public static final DefaultStaticValue c = new DefaultStaticValue();
+        public static float get() { return c.v; }
+        public static void test() throws Exception {
+                        float val1 = get();
+            c.v = 1.0F; float val2 = get();
+            assertEquals(val1, 0F);
+            assertEquals(val2, 1.0F);
+        }
+    }
+
+    /* ==================================================== */
+
     static class StaticFloatStable {
         public static @Stable float v;
 
@@ -188,20 +219,22 @@
                 c.v = new float[1]; c.v[0] = 1.0F; float val1 = get();
                                     c.v[0] = 2.0F; float val2 = get();
                 assertEquals(val1, 1.0F);
-                assertEquals(val2, (isStableEnabled ? 1.0F : 2.0F));
+                assertEquals(val2, (isServerWithStable ? 1.0F : 2.0F));
 
                 c.v = new float[1]; c.v[0] = 3.0F; float val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1.0F : 3.0F));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
+                                                    : 3.0F));
             }
 
             {
                 c.v = new float[20]; c.v[10] = 1.0F; float val1 = get1();
                                      c.v[10] = 2.0F; float val2 = get1();
                 assertEquals(val1, 1.0F);
-                assertEquals(val2, (isStableEnabled ? 1.0F : 2.0F));
+                assertEquals(val2, (isServerWithStable ? 1.0F : 2.0F));
 
                 c.v = new float[20]; c.v[10] = 3.0F; float val3 = get1();
-                assertEquals(val3, (isStableEnabled ? 1.0F : 3.0F));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
+                                                    : 3.0F));
             }
 
             {
@@ -226,19 +259,21 @@
                 c.v = new float[1][1]; c.v[0][0] = 1.0F; float val1 = get();
                                        c.v[0][0] = 2.0F; float val2 = get();
                 assertEquals(val1, 1.0F);
-                assertEquals(val2, (isStableEnabled ? 1.0F : 2.0F));
+                assertEquals(val2, (isServerWithStable ? 1.0F : 2.0F));
 
                 c.v = new float[1][1]; c.v[0][0] = 3.0F; float val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1.0F : 3.0F));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
+                                                    : 3.0F));
 
                 c.v[0] = new float[1]; c.v[0][0] = 4.0F; float val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1.0F : 4.0F));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
+                                                    : 4.0F));
             }
 
             {
                 c.v = new float[1][1]; float[] val1 = get1();
                 c.v[0] = new float[1]; float[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -264,28 +299,31 @@
                 c.v = new float[1][1][1]; c.v[0][0][0] = 1.0F; float val1 = get();
                                           c.v[0][0][0] = 2.0F; float val2 = get();
                 assertEquals(val1, 1.0F);
-                assertEquals(val2, (isStableEnabled ? 1.0F : 2.0F));
+                assertEquals(val2, (isServerWithStable ? 1.0F : 2.0F));
 
                 c.v = new float[1][1][1]; c.v[0][0][0] = 3.0F; float val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1.0F : 3.0F));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
+                                                    : 3.0F));
 
                 c.v[0] = new float[1][1]; c.v[0][0][0] = 4.0F; float val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1.0F : 4.0F));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
+                                                    : 4.0F));
 
                 c.v[0][0] = new float[1]; c.v[0][0][0] = 5.0F; float val5 = get();
-                assertEquals(val5, (isStableEnabled ? 1.0F : 5.0F));
+                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
+                                                    : 5.0F));
             }
 
             {
                 c.v = new float[1][1][1]; float[] val1 = get1();
                 c.v[0][0] = new float[1]; float[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new float[1][1][1]; float[][] val1 = get2();
                 c.v[0] = new float[1][1]; float[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -312,37 +350,41 @@
                 c.v = new float[1][1][1][1]; c.v[0][0][0][0] = 1.0F; float val1 = get();
                                              c.v[0][0][0][0] = 2.0F; float val2 = get();
                 assertEquals(val1, 1.0F);
-                assertEquals(val2, (isStableEnabled ? 1.0F : 2.0F));
+                assertEquals(val2, (isServerWithStable ? 1.0F : 2.0F));
 
                 c.v = new float[1][1][1][1]; c.v[0][0][0][0] = 3.0F; float val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1.0F : 3.0F));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
+                                                    : 3.0F));
 
                 c.v[0] = new float[1][1][1]; c.v[0][0][0][0] = 4.0F; float val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1.0F : 4.0F));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
+                                                    : 4.0F));
 
                 c.v[0][0] = new float[1][1]; c.v[0][0][0][0] = 5.0F; float val5 = get();
-                assertEquals(val5, (isStableEnabled ? 1.0F : 5.0F));
+                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
+                                                    : 5.0F));
 
                 c.v[0][0][0] = new float[1]; c.v[0][0][0][0] = 6.0F; float val6 = get();
-                assertEquals(val6, (isStableEnabled ? 1.0F : 6.0F));
+                assertEquals(val6, (isStableEnabled ? (isServerWithStable ? 1.0F : 2.0F)
+                                                    : 6.0F));
             }
 
             {
                 c.v = new float[1][1][1][1]; float[] val1 = get1();
                 c.v[0][0][0] = new float[1]; float[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new float[1][1][1][1]; float[][] val1 = get2();
                 c.v[0][0] = new float[1][1]; float[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new float[1][1][1][1]; float[][][] val1 = get3();
                 c.v[0] = new float[1][1][1]; float[][][] val2 = get3();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -350,13 +392,11 @@
                 c.v = new float[1][1][1][1]; float[][][][] val2 = get4();
                 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
             }
-
         }
     }
 
     /* ==================================================== */
     // Dynamic Dim is higher than static
-
     static class ObjectArrayLowerDim0 {
         public @Stable Object v;
 
@@ -404,7 +444,7 @@
                 c.v = new float[1][1]; c.v[0] = new float[0]; float[] val1 = get1();
                                        c.v[0] = new float[0]; float[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -440,14 +480,14 @@
                 c.v = new float[1][1][1]; c.v[0][0] = new float[0]; float[] val1 = get1();
                                           c.v[0][0] = new float[0]; float[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new float[1][1][1]; c.v[0] = new float[0][0]; float[][] val1 = get2();
                                           c.v[0] = new float[0][0]; float[][] val2 = get2();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -582,7 +622,7 @@
                                elem.a = 2.0F; float val3 = get(); float val4 = get1();
 
                 assertEquals(val1, 1.0F);
-                assertEquals(val3, (isStableEnabled ? 1.0F : 2.0F));
+                assertEquals(val3, (isServerWithStable ? 1.0F : 2.0F));
 
                 assertEquals(val2, 1.0F);
                 assertEquals(val4, 2.0F);
@@ -616,17 +656,4 @@
             }
         }
     }
-
-    static final boolean isStableEnabled;
-    static {
-        HotSpotDiagnosticMXBean diagnostic
-                = ManagementFactoryHelper.getDiagnosticMXBean();
-        VMOption tmp;
-        try {
-            tmp = diagnostic.getVMOption("FoldStableValues");
-        } catch (IllegalArgumentException e) {
-            tmp = null;
-        }
-        isStableEnabled = (tmp == null ? false : Boolean.parseBoolean(tmp.getValue()));
-    }
 }
diff -r b67a3f81b630 -r d952af8cf67d test/compiler/stable/TestStableInt.java
--- a/test/compiler/stable/TestStableInt.java	Fri Jun 27 11:07:23 2014 +0100
+++ b/test/compiler/stable/TestStableInt.java	Fri Jul 11 00:19:54 2014 -0700
@@ -26,9 +26,11 @@
 /*
  * @test TestStableInt
  * @summary tests on stable fields and arrays
- * @library /testlibrary
- * @compile -XDignore.symbol.file TestStableInt.java
+ * @library /testlibrary /testlibrary/whitebox
+ * @build TestStableInt StableConfiguration sun.hotspot.WhiteBox
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
  * @run main ClassFileInstaller
+ *           java/lang/invoke/StableConfiguration
  *           java/lang/invoke/TestStableInt
  *           java/lang/invoke/TestStableInt$IntStable
  *           java/lang/invoke/TestStableInt$StaticIntStable
@@ -48,46 +50,60 @@
  *           java/lang/invoke/TestStableInt$NestedStableField3
  *           java/lang/invoke/TestStableInt$NestedStableField3$A
  *           java/lang/invoke/TestStableInt$DefaultValue
+ *           java/lang/invoke/TestStableInt$DefaultStaticValue
  *           java/lang/invoke/TestStableInt$ObjectArrayLowerDim2
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableInt
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableInt
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableInt
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableInt
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableInt
- *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableInt
  */
 package java.lang.invoke;
 
-import com.sun.management.HotSpotDiagnosticMXBean;
-import com.sun.management.VMOption;
-import sun.management.ManagementFactoryHelper;
 import java.lang.reflect.InvocationTargetException;
 
 public class TestStableInt {
+    static final boolean isStableEnabled    = StableConfiguration.isStableEnabled;
+    static final boolean isServerWithStable = StableConfiguration.isServerWithStable;
+
     public static void main(String[] args) throws Exception {
-        System.out.println("@Stable enabled: "+isStableEnabled);
-        System.out.println();
-
         run(DefaultValue.class);
         run(IntStable.class);
+        run(DefaultStaticValue.class);
         run(StaticIntStable.class);
         run(VolatileIntStable.class);
 
@@ -145,6 +161,21 @@
 
     /* ==================================================== */
 
+    static class DefaultStaticValue {
+        public static @Stable int v;
+
+        public static final DefaultStaticValue c = new DefaultStaticValue();
+        public static int get() { return c.v; }
+        public static void test() throws Exception {
+                        int val1 = get();
+            c.v = 1; int val2 = get();
+            assertEquals(val1, 0);
+            assertEquals(val2, 1);
+        }
+    }
+
+    /* ==================================================== */
+
     static class StaticIntStable {
         public static @Stable int v;
 
@@ -188,20 +219,22 @@
                 c.v = new int[1]; c.v[0] = 1; int val1 = get();
                                   c.v[0] = 2; int val2 = get();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new int[1]; c.v[0] = 3; int val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
             }
 
             {
                 c.v = new int[20]; c.v[10] = 1; int val1 = get1();
                                    c.v[10] = 2; int val2 = get1();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new int[20]; c.v[10] = 3; int val3 = get1();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
             }
 
             {
@@ -226,19 +259,21 @@
                 c.v = new int[1][1]; c.v[0][0] = 1; int val1 = get();
                                      c.v[0][0] = 2; int val2 = get();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new int[1][1]; c.v[0][0] = 3; int val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
 
                 c.v[0] = new int[1]; c.v[0][0] = 4; int val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1 : 4));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 4));
             }
 
             {
                 c.v = new int[1][1]; int[] val1 = get1();
                 c.v[0] = new int[1]; int[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -264,28 +299,31 @@
                 c.v = new int[1][1][1]; c.v[0][0][0] = 1; int val1 = get();
                                         c.v[0][0][0] = 2; int val2 = get();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new int[1][1][1]; c.v[0][0][0] = 3; int val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
 
                 c.v[0] = new int[1][1]; c.v[0][0][0] = 4; int val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1 : 4));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 4));
 
                 c.v[0][0] = new int[1]; c.v[0][0][0] = 5; int val5 = get();
-                assertEquals(val5, (isStableEnabled ? 1 : 5));
+                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 5));
             }
 
             {
                 c.v = new int[1][1][1]; int[] val1 = get1();
                 c.v[0][0] = new int[1]; int[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new int[1][1][1]; int[][] val1 = get2();
                 c.v[0] = new int[1][1]; int[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -312,37 +350,41 @@
                 c.v = new int[1][1][1][1]; c.v[0][0][0][0] = 1; int val1 = get();
                                            c.v[0][0][0][0] = 2; int val2 = get();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new int[1][1][1][1]; c.v[0][0][0][0] = 3; int val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
 
                 c.v[0] = new int[1][1][1]; c.v[0][0][0][0] = 4; int val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1 : 4));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 4));
 
                 c.v[0][0] = new int[1][1]; c.v[0][0][0][0] = 5; int val5 = get();
-                assertEquals(val5, (isStableEnabled ? 1 : 5));
+                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 5));
 
                 c.v[0][0][0] = new int[1]; c.v[0][0][0][0] = 6; int val6 = get();
-                assertEquals(val6, (isStableEnabled ? 1 : 6));
+                assertEquals(val6, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 6));
             }
 
             {
                 c.v = new int[1][1][1][1]; int[] val1 = get1();
                 c.v[0][0][0] = new int[1]; int[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new int[1][1][1][1]; int[][] val1 = get2();
                 c.v[0][0] = new int[1][1]; int[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new int[1][1][1][1]; int[][][] val1 = get3();
                 c.v[0] = new int[1][1][1]; int[][][] val2 = get3();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -350,13 +392,11 @@
                 c.v = new int[1][1][1][1]; int[][][][] val2 = get4();
                 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
             }
-
         }
     }
 
     /* ==================================================== */
     // Dynamic Dim is higher than static
-
     static class ObjectArrayLowerDim0 {
         public @Stable Object v;
 
@@ -404,7 +444,7 @@
                 c.v = new int[1][1]; c.v[0] = new int[0]; int[] val1 = get1();
                                      c.v[0] = new int[0]; int[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -440,14 +480,14 @@
                 c.v = new int[1][1][1]; c.v[0][0] = new int[0]; int[] val1 = get1();
                                         c.v[0][0] = new int[0]; int[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new int[1][1][1]; c.v[0] = new int[0][0]; int[][] val1 = get2();
                                         c.v[0] = new int[0][0]; int[][] val2 = get2();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -582,7 +622,7 @@
                                elem.a = 2; int val3 = get(); int val4 = get1();
 
                 assertEquals(val1, 1);
-                assertEquals(val3, (isStableEnabled ? 1 : 2));
+                assertEquals(val3, (isServerWithStable ? 1 : 2));
 
                 assertEquals(val2, 1);
                 assertEquals(val4, 2);
@@ -616,17 +656,4 @@
             }
         }
     }
-
-    static final boolean isStableEnabled;
-    static {
-        HotSpotDiagnosticMXBean diagnostic
-                = ManagementFactoryHelper.getDiagnosticMXBean();
-        VMOption tmp;
-        try {
-            tmp = diagnostic.getVMOption("FoldStableValues");
-        } catch (IllegalArgumentException e) {
-            tmp = null;
-        }
-        isStableEnabled = (tmp == null ? false : Boolean.parseBoolean(tmp.getValue()));
-    }
 }
diff -r b67a3f81b630 -r d952af8cf67d test/compiler/stable/TestStableLong.java
--- a/test/compiler/stable/TestStableLong.java	Fri Jun 27 11:07:23 2014 +0100
+++ b/test/compiler/stable/TestStableLong.java	Fri Jul 11 00:19:54 2014 -0700
@@ -26,9 +26,11 @@
 /*
  * @test TestStableLong
  * @summary tests on stable fields and arrays
- * @library /testlibrary
- * @compile -XDignore.symbol.file TestStableLong.java
+ * @library /testlibrary /testlibrary/whitebox
+ * @build TestStableLong StableConfiguration sun.hotspot.WhiteBox
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
  * @run main ClassFileInstaller
+ *           java/lang/invoke/StableConfiguration
  *           java/lang/invoke/TestStableLong
  *           java/lang/invoke/TestStableLong$LongStable
  *           java/lang/invoke/TestStableLong$StaticLongStable
@@ -48,46 +50,60 @@
  *           java/lang/invoke/TestStableLong$NestedStableField3
  *           java/lang/invoke/TestStableLong$NestedStableField3$A
  *           java/lang/invoke/TestStableLong$DefaultValue
+ *           java/lang/invoke/TestStableLong$DefaultStaticValue
  *           java/lang/invoke/TestStableLong$ObjectArrayLowerDim2
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableLong
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableLong
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableLong
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableLong
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableLong
- *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableLong
  */
 package java.lang.invoke;
 
-import com.sun.management.HotSpotDiagnosticMXBean;
-import com.sun.management.VMOption;
-import sun.management.ManagementFactoryHelper;
 import java.lang.reflect.InvocationTargetException;
 
 public class TestStableLong {
+    static final boolean isStableEnabled    = StableConfiguration.isStableEnabled;
+    static final boolean isServerWithStable = StableConfiguration.isServerWithStable;
+
     public static void main(String[] args) throws Exception {
-        System.out.println("@Stable enabled: "+isStableEnabled);
-        System.out.println();
-
         run(DefaultValue.class);
         run(LongStable.class);
+        run(DefaultStaticValue.class);
         run(StaticLongStable.class);
         run(VolatileLongStable.class);
 
@@ -145,6 +161,21 @@
 
     /* ==================================================== */
 
+    static class DefaultStaticValue {
+        public static @Stable long v;
+
+        public static final DefaultStaticValue c = new DefaultStaticValue();
+        public static long get() { return c.v; }
+        public static void test() throws Exception {
+                      long val1 = get();
+            c.v = 1L; long val2 = get();
+            assertEquals(val1, 0);
+            assertEquals(val2, 1L);
+        }
+    }
+
+    /* ==================================================== */
+
     static class StaticLongStable {
         public static @Stable long v;
 
@@ -188,20 +219,22 @@
                 c.v = new long[1]; c.v[0] = 1; long val1 = get();
                                    c.v[0] = 2; long val2 = get();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new long[1]; c.v[0] = 3; long val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
             }
 
             {
                 c.v = new long[20]; c.v[10] = 1; long val1 = get1();
                                     c.v[10] = 2; long val2 = get1();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new long[20]; c.v[10] = 3; long val3 = get1();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
             }
 
             {
@@ -226,19 +259,21 @@
                 c.v = new long[1][1]; c.v[0][0] = 1; long val1 = get();
                                       c.v[0][0] = 2; long val2 = get();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new long[1][1]; c.v[0][0] = 3; long val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
 
                 c.v[0] = new long[1]; c.v[0][0] = 4; long val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1 : 4));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 4));
             }
 
             {
                 c.v = new long[1][1]; long[] val1 = get1();
                 c.v[0] = new long[1]; long[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -264,28 +299,31 @@
                 c.v = new long[1][1][1]; c.v[0][0][0] = 1; long val1 = get();
                                          c.v[0][0][0] = 2; long val2 = get();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new long[1][1][1]; c.v[0][0][0] = 3; long val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
 
                 c.v[0] = new long[1][1]; c.v[0][0][0] = 4; long val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1 : 4));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 4));
 
                 c.v[0][0] = new long[1]; c.v[0][0][0] = 5; long val5 = get();
-                assertEquals(val5, (isStableEnabled ? 1 : 5));
+                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 5));
             }
 
             {
                 c.v = new long[1][1][1]; long[] val1 = get1();
                 c.v[0][0] = new long[1]; long[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new long[1][1][1]; long[][] val1 = get2();
                 c.v[0] = new long[1][1]; long[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -312,37 +350,41 @@
                 c.v = new long[1][1][1][1]; c.v[0][0][0][0] = 1; long val1 = get();
                                             c.v[0][0][0][0] = 2; long val2 = get();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new long[1][1][1][1]; c.v[0][0][0][0] = 3; long val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
 
                 c.v[0] = new long[1][1][1]; c.v[0][0][0][0] = 4; long val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1 : 4));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 4));
 
                 c.v[0][0] = new long[1][1]; c.v[0][0][0][0] = 5; long val5 = get();
-                assertEquals(val5, (isStableEnabled ? 1 : 5));
+                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 5));
 
                 c.v[0][0][0] = new long[1]; c.v[0][0][0][0] = 6; long val6 = get();
-                assertEquals(val6, (isStableEnabled ? 1 : 6));
+                assertEquals(val6, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 6));
             }
 
             {
                 c.v = new long[1][1][1][1]; long[] val1 = get1();
                 c.v[0][0][0] = new long[1]; long[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new long[1][1][1][1]; long[][] val1 = get2();
                 c.v[0][0] = new long[1][1]; long[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new long[1][1][1][1]; long[][][] val1 = get3();
                 c.v[0] = new long[1][1][1]; long[][][] val2 = get3();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -350,13 +392,11 @@
                 c.v = new long[1][1][1][1]; long[][][][] val2 = get4();
                 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
             }
-
         }
     }
 
     /* ==================================================== */
     // Dynamic Dim is higher than static
-
     static class ObjectArrayLowerDim0 {
         public @Stable Object v;
 
@@ -404,7 +444,7 @@
                 c.v = new long[1][1]; c.v[0] = new long[0]; long[] val1 = get1();
                                      c.v[0] = new long[0]; long[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -440,14 +480,14 @@
                 c.v = new long[1][1][1]; c.v[0][0] = new long[0]; long[] val1 = get1();
                                          c.v[0][0] = new long[0]; long[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new long[1][1][1]; c.v[0] = new long[0][0]; long[][] val1 = get2();
                                          c.v[0] = new long[0][0]; long[][] val2 = get2();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -582,7 +622,7 @@
                                elem.a = 2; long val3 = get(); long val4 = get1();
 
                 assertEquals(val1, 1);
-                assertEquals(val3, (isStableEnabled ? 1 : 2));
+                assertEquals(val3, (isServerWithStable ? 1 : 2));
 
                 assertEquals(val2, 1);
                 assertEquals(val4, 2);
@@ -616,17 +656,4 @@
             }
         }
     }
-
-    static final boolean isStableEnabled;
-    static {
-        HotSpotDiagnosticMXBean diagnostic
-                = ManagementFactoryHelper.getDiagnosticMXBean();
-        VMOption tmp;
-        try {
-            tmp = diagnostic.getVMOption("FoldStableValues");
-        } catch (IllegalArgumentException e) {
-            tmp = null;
-        }
-        isStableEnabled = (tmp == null ? false : Boolean.parseBoolean(tmp.getValue()));
-    }
 }
diff -r b67a3f81b630 -r d952af8cf67d test/compiler/stable/TestStableObject.java
--- a/test/compiler/stable/TestStableObject.java	Fri Jun 27 11:07:23 2014 +0100
+++ b/test/compiler/stable/TestStableObject.java	Fri Jul 11 00:19:54 2014 -0700
@@ -26,9 +26,11 @@
 /*
  * @test TestStableObject
  * @summary tests on stable fields and arrays
- * @library /testlibrary
- * @compile -XDignore.symbol.file TestStableObject.java
+ * @library /testlibrary /testlibrary/whitebox
+ * @build TestStableObject StableConfiguration sun.hotspot.WhiteBox
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
  * @run main ClassFileInstaller
+ *           java/lang/invoke/StableConfiguration
  *           java/lang/invoke/TestStableObject
  *           java/lang/invoke/TestStableObject$ObjectStable
  *           java/lang/invoke/TestStableObject$StaticObjectStable
@@ -49,46 +51,60 @@
  *           java/lang/invoke/TestStableObject$NestedStableField3$A
  *           java/lang/invoke/TestStableObject$Values
  *           java/lang/invoke/TestStableObject$DefaultValue
+ *           java/lang/invoke/TestStableObject$DefaultStaticValue
  *           java/lang/invoke/TestStableObject$ObjectArrayLowerDim2
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableObject
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableObject
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableObject
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableObject
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableObject
- *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableObject
  */
 package java.lang.invoke;
 
-import com.sun.management.HotSpotDiagnosticMXBean;
-import com.sun.management.VMOption;
-import sun.management.ManagementFactoryHelper;
 import java.lang.reflect.InvocationTargetException;
 
 public class TestStableObject {
+    static final boolean isStableEnabled    = StableConfiguration.isStableEnabled;
+    static final boolean isServerWithStable = StableConfiguration.isServerWithStable;
+
     public static void main(String[] args) throws Exception {
-        System.out.println("@Stable enabled: "+isStableEnabled);
-        System.out.println();
-
         run(DefaultValue.class);
         run(ObjectStable.class);
+        run(DefaultStaticValue.class);
         run(StaticObjectStable.class);
         run(VolatileObjectStable.class);
 
@@ -148,6 +164,21 @@
 
     /* ==================================================== */
 
+    static class DefaultStaticValue {
+        public static @Stable Object v;
+
+        public static final DefaultStaticValue c = new DefaultStaticValue();
+        public static Object get() { return c.v; }
+        public static void test() throws Exception {
+                            Object val1 = get();
+            c.v = Values.A; Object val2 = get();
+            assertEquals(val1, null);
+            assertEquals(val2, Values.A);
+        }
+    }
+
+    /* ==================================================== */
+
     static class StaticObjectStable {
         public static @Stable Values v;
 
@@ -191,20 +222,22 @@
                 c.v = new Object[1]; c.v[0] = Values.A; Object val1 = get();
                                      c.v[0] = Values.B; Object val2 = get();
                 assertEquals(val1, Values.A);
-                assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
+                assertEquals(val2, (isServerWithStable ? Values.A : Values.B));
 
                 c.v = new Object[1]; c.v[0] = Values.C; Object val3 = get();
-                assertEquals(val3, (isStableEnabled ? Values.A : Values.C));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
+                                                    : Values.C));
             }
 
             {
                 c.v = new Object[20]; c.v[10] = Values.A; Object val1 = get1();
                                       c.v[10] = Values.B; Object val2 = get1();
                 assertEquals(val1, Values.A);
-                assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
+                assertEquals(val2, (isServerWithStable ? Values.A : Values.B));
 
                 c.v = new Object[20]; c.v[10] = Values.C; Object val3 = get1();
-                assertEquals(val3, (isStableEnabled ? Values.A : Values.C));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
+                                                    : Values.C));
             }
 
             {
@@ -229,19 +262,21 @@
                 c.v = new Object[1][1]; c.v[0][0] = Values.A; Object val1 = get();
                                         c.v[0][0] = Values.B; Object val2 = get();
                 assertEquals(val1, Values.A);
-                assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
+                assertEquals(val2, (isServerWithStable ? Values.A : Values.B));
 
                 c.v = new Object[1][1]; c.v[0][0] = Values.C; Object val3 = get();
-                assertEquals(val3, (isStableEnabled ? Values.A : Values.C));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
+                                                    : Values.C));
 
                 c.v[0] = new Object[1]; c.v[0][0] = Values.D; Object val4 = get();
-                assertEquals(val4, (isStableEnabled ? Values.A : Values.D));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
+                                                    : Values.D));
             }
 
             {
                 c.v = new Object[1][1]; Object[] val1 = get1();
                 c.v[0] = new Object[1]; Object[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -267,28 +302,31 @@
                 c.v = new Object[1][1][1]; c.v[0][0][0] = Values.A; Object val1 = get();
                                            c.v[0][0][0] = Values.B; Object val2 = get();
                 assertEquals(val1, Values.A);
-                assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
+                assertEquals(val2, (isServerWithStable ? Values.A : Values.B));
 
                 c.v = new Object[1][1][1]; c.v[0][0][0] = Values.C; Object val3 = get();
-                assertEquals(val3, (isStableEnabled ? Values.A : Values.C));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
+                                                    : Values.C));
 
                 c.v[0] = new Object[1][1]; c.v[0][0][0] = Values.D; Object val4 = get();
-                assertEquals(val4, (isStableEnabled ? Values.A : Values.D));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
+                                                    : Values.D));
 
                 c.v[0][0] = new Object[1]; c.v[0][0][0] = Values.E; Object val5 = get();
-                assertEquals(val5, (isStableEnabled ? Values.A : Values.E));
+                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
+                                                    : Values.E));
             }
 
             {
                 c.v = new Object[1][1][1]; Object[] val1 = get1();
                 c.v[0][0] = new Object[1]; Object[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new Object[1][1][1]; Object[][] val1 = get2();
                 c.v[0] = new Object[1][1]; Object[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -315,37 +353,41 @@
                 c.v = new Object[1][1][1][1]; c.v[0][0][0][0] = Values.A; Object val1 = get();
                                               c.v[0][0][0][0] = Values.B; Object val2 = get();
                 assertEquals(val1, Values.A);
-                assertEquals(val2, (isStableEnabled ? Values.A : Values.B));
+                assertEquals(val2, (isServerWithStable ? Values.A : Values.B));
 
                 c.v = new Object[1][1][1][1]; c.v[0][0][0][0] = Values.C; Object val3 = get();
-                assertEquals(val3, (isStableEnabled ? Values.A : Values.C));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
+                                                    : Values.C));
 
                 c.v[0] = new Object[1][1][1]; c.v[0][0][0][0] = Values.D; Object val4 = get();
-                assertEquals(val4, (isStableEnabled ? Values.A : Values.D));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
+                                                    : Values.D));
 
                 c.v[0][0] = new Object[1][1]; c.v[0][0][0][0] = Values.E; Object val5 = get();
-                assertEquals(val5, (isStableEnabled ? Values.A : Values.E));
+                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
+                                                    : Values.E));
 
                 c.v[0][0][0] = new Object[1]; c.v[0][0][0][0] = Values.F; Object val6 = get();
-                assertEquals(val6, (isStableEnabled ? Values.A : Values.F));
+                assertEquals(val6, (isStableEnabled ? (isServerWithStable ? Values.A : Values.B)
+                                                    : Values.F));
             }
 
             {
                 c.v = new Object[1][1][1][1]; Object[] val1 = get1();
                 c.v[0][0][0] = new Object[1]; Object[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new Object[1][1][1][1]; Object[][] val1 = get2();
                 c.v[0][0] = new Object[1][1]; Object[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new Object[1][1][1][1]; Object[][][] val1 = get3();
                 c.v[0] = new Object[1][1][1]; Object[][][] val2 = get3();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -353,13 +395,11 @@
                 c.v = new Object[1][1][1][1]; Object[][][][] val2 = get4();
                 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
             }
-
         }
     }
 
     /* ==================================================== */
     // Dynamic Dim is higher than static
-
     static class ObjectArrayLowerDim0 {
         public @Stable Object v;
 
@@ -407,7 +447,7 @@
                 c.v = new Object[1][1]; c.v[0] = new Object[0]; Object[] val1 = get1();
                                      c.v[0] = new Object[0]; Object[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -443,14 +483,14 @@
                 c.v = new Object[1][1][1]; c.v[0][0] = new Object[0]; Object[] val1 = get1();
                                            c.v[0][0] = new Object[0]; Object[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new Object[1][1][1]; c.v[0] = new Object[0][0]; Object[][] val1 = get2();
                                            c.v[0] = new Object[0][0]; Object[][] val2 = get2();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -585,7 +625,7 @@
                                elem.a = Values.B; Object val3 = get(); Object val4 = get1();
 
                 assertEquals(val1, Values.A);
-                assertEquals(val3, (isStableEnabled ? Values.A : Values.B));
+                assertEquals(val3, (isServerWithStable ? Values.A : Values.B));
 
                 assertEquals(val2, Values.A);
                 assertEquals(val4, Values.B);
@@ -619,17 +659,4 @@
             }
         }
     }
-
-    static final boolean isStableEnabled;
-    static {
-        HotSpotDiagnosticMXBean diagnostic
-                = ManagementFactoryHelper.getDiagnosticMXBean();
-        VMOption tmp;
-        try {
-            tmp = diagnostic.getVMOption("FoldStableValues");
-        } catch (IllegalArgumentException e) {
-            tmp = null;
-        }
-        isStableEnabled = (tmp == null ? false : Boolean.parseBoolean(tmp.getValue()));
-    }
 }
diff -r b67a3f81b630 -r d952af8cf67d test/compiler/stable/TestStableShort.java
--- a/test/compiler/stable/TestStableShort.java	Fri Jun 27 11:07:23 2014 +0100
+++ b/test/compiler/stable/TestStableShort.java	Fri Jul 11 00:19:54 2014 -0700
@@ -26,9 +26,11 @@
 /*
  * @test TestStableShort
  * @summary tests on stable fields and arrays
- * @library /testlibrary
- * @compile -XDignore.symbol.file TestStableShort.java
+ * @library /testlibrary /testlibrary/whitebox
+ * @build TestStableShort StableConfiguration sun.hotspot.WhiteBox
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
  * @run main ClassFileInstaller
+ *           java/lang/invoke/StableConfiguration
  *           java/lang/invoke/TestStableShort
  *           java/lang/invoke/TestStableShort$ShortStable
  *           java/lang/invoke/TestStableShort$StaticShortStable
@@ -48,46 +50,60 @@
  *           java/lang/invoke/TestStableShort$NestedStableField3
  *           java/lang/invoke/TestStableShort$NestedStableField3$A
  *           java/lang/invoke/TestStableShort$DefaultValue
+ *           java/lang/invoke/TestStableShort$DefaultStaticValue
  *           java/lang/invoke/TestStableShort$ObjectArrayLowerDim2
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableShort
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableShort
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:+FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:+FoldStableValues
+ *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
+ *                   java.lang.invoke.TestStableShort
+ * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -server -XX:+TieredCompilation -XX:TieredStopAtLevel=1
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableShort
  *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:+UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:+FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableShort
- *
  * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
- *                   -XX:+UnlockDiagnosticVMOptions -XX:-FoldStableValues -XX:-UseCompressedOop
- *                   -server -XX:-TieredCompilation -Xcomp
+ *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xcomp
+ *                   -client -XX:-TieredCompilation
+ *                   -XX:-FoldStableValues
  *                   -XX:CompileOnly=::get,::get1,::get2,::get3,::get4
  *                   java.lang.invoke.TestStableShort
  */
 package java.lang.invoke;
 
-import com.sun.management.HotSpotDiagnosticMXBean;
-import com.sun.management.VMOption;
-import sun.management.ManagementFactoryHelper;
 import java.lang.reflect.InvocationTargetException;
 
 public class TestStableShort {
+    static final boolean isStableEnabled    = StableConfiguration.isStableEnabled;
+    static final boolean isServerWithStable = StableConfiguration.isServerWithStable;
+
     public static void main(String[] args) throws Exception {
-        System.out.println("@Stable enabled: "+isStableEnabled);
-        System.out.println();
-
         run(DefaultValue.class);
         run(ShortStable.class);
+        run(DefaultStaticValue.class);
         run(StaticShortStable.class);
         run(VolatileShortStable.class);
 
@@ -145,6 +161,21 @@
 
     /* ==================================================== */
 
+    static class DefaultStaticValue {
+        public static @Stable short v;
+
+        public static final DefaultStaticValue c = new DefaultStaticValue();
+        public static short get() { return c.v; }
+        public static void test() throws Exception {
+                     short val1 = get();
+            c.v = 1; short val2 = get();
+            assertEquals(val1, 0);
+            assertEquals(val2, 1);
+        }
+    }
+
+    /* ==================================================== */
+
     static class StaticShortStable {
         public static @Stable short v;
 
@@ -188,20 +219,22 @@
                 c.v = new short[1]; c.v[0] = 1; short val1 = get();
                                     c.v[0] = 2; short val2 = get();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new short[1]; c.v[0] = 3; short val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
             }
 
             {
                 c.v = new short[20]; c.v[10] = 1; short val1 = get1();
                                      c.v[10] = 2; short val2 = get1();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new short[20]; c.v[10] = 3; short val3 = get1();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
             }
 
             {
@@ -226,19 +259,21 @@
                 c.v = new short[1][1]; c.v[0][0] = 1; short val1 = get();
                                        c.v[0][0] = 2; short val2 = get();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new short[1][1]; c.v[0][0] = 3; short val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
 
                 c.v[0] = new short[1]; c.v[0][0] = 4; short val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1 : 4));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 4));
             }
 
             {
                 c.v = new short[1][1]; short[] val1 = get1();
                 c.v[0] = new short[1]; short[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -264,28 +299,31 @@
                 c.v = new short[1][1][1]; c.v[0][0][0] = 1; short val1 = get();
                                           c.v[0][0][0] = 2; short val2 = get();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new short[1][1][1]; c.v[0][0][0] = 3; short val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
 
                 c.v[0] = new short[1][1]; c.v[0][0][0] = 4; short val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1 : 4));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 4));
 
                 c.v[0][0] = new short[1]; c.v[0][0][0] = 5; short val5 = get();
-                assertEquals(val5, (isStableEnabled ? 1 : 5));
+                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 5));
             }
 
             {
                 c.v = new short[1][1][1]; short[] val1 = get1();
                 c.v[0][0] = new short[1]; short[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new short[1][1][1]; short[][] val1 = get2();
                 c.v[0] = new short[1][1]; short[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -312,37 +350,41 @@
                 c.v = new short[1][1][1][1]; c.v[0][0][0][0] = 1; short val1 = get();
                                              c.v[0][0][0][0] = 2; short val2 = get();
                 assertEquals(val1, 1);
-                assertEquals(val2, (isStableEnabled ? 1 : 2));
+                assertEquals(val2, (isServerWithStable ? 1 : 2));
 
                 c.v = new short[1][1][1][1]; c.v[0][0][0][0] = 3; short val3 = get();
-                assertEquals(val3, (isStableEnabled ? 1 : 3));
+                assertEquals(val3, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 3));
 
                 c.v[0] = new short[1][1][1]; c.v[0][0][0][0] = 4; short val4 = get();
-                assertEquals(val4, (isStableEnabled ? 1 : 4));
+                assertEquals(val4, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 4));
 
                 c.v[0][0] = new short[1][1]; c.v[0][0][0][0] = 5; short val5 = get();
-                assertEquals(val5, (isStableEnabled ? 1 : 5));
+                assertEquals(val5, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 5));
 
                 c.v[0][0][0] = new short[1]; c.v[0][0][0][0] = 6; short val6 = get();
-                assertEquals(val6, (isStableEnabled ? 1 : 6));
+                assertEquals(val6, (isStableEnabled ? (isServerWithStable ? 1 : 2)
+                                                    : 6));
             }
 
             {
                 c.v = new short[1][1][1][1]; short[] val1 = get1();
                 c.v[0][0][0] = new short[1]; short[] val2 = get1();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new short[1][1][1][1]; short[][] val1 = get2();
                 c.v[0][0] = new short[1][1]; short[][] val2 = get2();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new short[1][1][1][1]; short[][][] val1 = get3();
                 c.v[0] = new short[1][1][1]; short[][][] val2 = get3();
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -350,13 +392,11 @@
                 c.v = new short[1][1][1][1]; short[][][][] val2 = get4();
                 assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
             }
-
         }
     }
 
     /* ==================================================== */
     // Dynamic Dim is higher than static
-
     static class ObjectArrayLowerDim0 {
         public @Stable Object v;
 
@@ -404,7 +444,7 @@
                 c.v = new short[1][1]; c.v[0] = new short[0]; short[] val1 = get1();
                                        c.v[0] = new short[0]; short[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -440,14 +480,14 @@
                 c.v = new short[1][1][1]; c.v[0][0] = new short[0]; short[] val1 = get1();
                                           c.v[0][0] = new short[0]; short[] val2 = get1();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
                 c.v = new short[1][1][1]; c.v[0] = new short[0][0]; short[][] val1 = get2();
                                           c.v[0] = new short[0][0]; short[][] val2 = get2();
 
-                assertTrue((isStableEnabled ? (val1 == val2) : (val1 != val2)));
+                assertTrue((isServerWithStable ? (val1 == val2) : (val1 != val2)));
             }
 
             {
@@ -582,7 +622,7 @@
                                elem.a = 2; short val3 = get(); short val4 = get1();
 
                 assertEquals(val1, 1);
-                assertEquals(val3, (isStableEnabled ? 1 : 2));
+                assertEquals(val3, (isServerWithStable ? 1 : 2));
 
                 assertEquals(val2, 1);
                 assertEquals(val4, 2);
@@ -616,17 +656,4 @@
             }
         }
     }
-
-    static final boolean isStableEnabled;
-    static {
-        HotSpotDiagnosticMXBean diagnostic
-                = ManagementFactoryHelper.getDiagnosticMXBean();
-        VMOption tmp;
-        try {
-            tmp = diagnostic.getVMOption("FoldStableValues");
-        } catch (IllegalArgumentException e) {
-            tmp = null;
-        }
-        isStableEnabled = (tmp == null ? false : Boolean.parseBoolean(tmp.getValue()));
-    }
 }
diff -r b67a3f81b630 -r d952af8cf67d test/gc/logging/TestGCId.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/gc/logging/TestGCId.java	Fri Jul 11 00:19:54 2014 -0700
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test TestGCId
+ * @bug 8043607
+ * @summary Ensure that the GCId is logged
+ * @key gc
+ * @library /testlibrary
+ */
+
+import com.oracle.java.testlibrary.ProcessTools;
+import com.oracle.java.testlibrary.OutputAnalyzer;
+
+public class TestGCId {
+  public static void main(String[] args) throws Exception {
+    testGCId("UseParallelGC", "PrintGC");
+    testGCId("UseParallelGC", "PrintGCDetails");
+
+    testGCId("UseG1GC", "PrintGC");
+    testGCId("UseG1GC", "PrintGCDetails");
+
+    testGCId("UseConcMarkSweepGC", "PrintGC");
+    testGCId("UseConcMarkSweepGC", "PrintGCDetails");
+
+    testGCId("UseSerialGC", "PrintGC");
+    testGCId("UseSerialGC", "PrintGCDetails");
+  }
+
+  private static void verifyContainsGCIDs(OutputAnalyzer output) {
+    output.shouldMatch("^#0: \\[");
+    output.shouldMatch("^#1: \\[");
+    output.shouldHaveExitValue(0);
+  }
+
+  private static void verifyContainsNoGCIDs(OutputAnalyzer output) {
+    output.shouldNotMatch("^#[0-9]+: \\[");
+    output.shouldHaveExitValue(0);
+  }
+
+  private static void testGCId(String gcFlag, String logFlag) throws Exception {
+    // GCID logging enabled
+    ProcessBuilder pb_enabled =
+      ProcessTools.createJavaProcessBuilder("-XX:+" + gcFlag, "-XX:+" + logFlag, "-Xmx10M", "-XX:+PrintGCID", GCTest.class.getName());
+    verifyContainsGCIDs(new OutputAnalyzer(pb_enabled.start()));
+
+    // GCID logging disabled
+    ProcessBuilder pb_disabled =
+      ProcessTools.createJavaProcessBuilder("-XX:+" + gcFlag, "-XX:+" + logFlag, "-Xmx10M", "-XX:-PrintGCID", GCTest.class.getName());
+    verifyContainsNoGCIDs(new OutputAnalyzer(pb_disabled.start()));
+
+    // GCID logging default
+    ProcessBuilder pb_default =
+      ProcessTools.createJavaProcessBuilder("-XX:+" + gcFlag, "-XX:+" + logFlag, "-Xmx10M", GCTest.class.getName());
+    verifyContainsNoGCIDs(new OutputAnalyzer(pb_default.start()));
+  }
+
+  static class GCTest {
+    private static byte[] garbage;
+    public static void main(String [] args) {
+      System.out.println("Creating garbage");
+      // create 128MB of garbage. This should result in at least one GC
+      for (int i = 0; i < 1024; i++) {
+        garbage = new byte[128 * 1024];
+      }
+      // do a system gc to get one more gc
+      System.gc();
+      System.out.println("Done");
+    }
+  }
+}