# HG changeset patch
# User amurillo
# Date 1338589448 25200
# Node ID bd568544be7fcd12a9327e6c448592198d57b043
# Parent  2040997cba56ffab2c8b6468b6a97ff8f847aca9# Parent  7121cd2c58b5839f39533baf540770ca5a3baec7
Merge

diff -r 2040997cba56 -r bd568544be7f agent/src/share/classes/sun/jvm/hotspot/oops/AccessFlags.java
--- a/agent/src/share/classes/sun/jvm/hotspot/oops/AccessFlags.java	Fri Jun 01 14:12:10 2012 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/oops/AccessFlags.java	Fri Jun 01 15:24:08 2012 -0700
@@ -81,6 +81,7 @@
   // field flags
   public boolean fieldAccessWatched () { return (flags & JVM_ACC_FIELD_ACCESS_WATCHED) != 0; }
   public boolean fieldModificationWatched() { return (flags & JVM_ACC_FIELD_MODIFICATION_WATCHED) != 0; }
+  public boolean fieldHasGenericSignature() { return (flags & JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE)!= 0; }
 
   public void printOn(PrintStream tty) {
     // prints only .class flags and not the hotspot internal flags
diff -r 2040997cba56 -r bd568544be7f agent/src/share/classes/sun/jvm/hotspot/oops/InstanceKlass.java
--- a/agent/src/share/classes/sun/jvm/hotspot/oops/InstanceKlass.java	Fri Jun 01 14:12:10 2012 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/oops/InstanceKlass.java	Fri Jun 01 15:24:08 2012 -0700
@@ -50,7 +50,6 @@
   private static int INITVAL_INDEX_OFFSET;
   private static int LOW_OFFSET;
   private static int HIGH_OFFSET;
-  private static int GENERIC_SIGNATURE_INDEX_OFFSET;
   private static int FIELD_SLOTS;
 
   // ClassState constants
@@ -99,7 +98,6 @@
     INITVAL_INDEX_OFFSET           = db.lookupIntConstant("FieldInfo::initval_index_offset").intValue();
     LOW_OFFSET                     = db.lookupIntConstant("FieldInfo::low_offset").intValue();
     HIGH_OFFSET                    = db.lookupIntConstant("FieldInfo::high_offset").intValue();
-    GENERIC_SIGNATURE_INDEX_OFFSET = db.lookupIntConstant("FieldInfo::generic_signature_offset").intValue();
     FIELD_SLOTS                    = db.lookupIntConstant("FieldInfo::field_slots").intValue();
     // read ClassState constants
     CLASS_STATE_UNPARSABLE_BY_GC = db.lookupIntConstant("instanceKlass::unparsable_by_gc").intValue();
@@ -279,7 +277,25 @@
   }
 
   public short getFieldGenericSignatureIndex(int index) {
-    return getFields().getShortAt(index * FIELD_SLOTS + GENERIC_SIGNATURE_INDEX_OFFSET);
+    int len = (int)getFields().getLength();
+    int allFieldsCount = getAllFieldsCount();
+    int generic_signature_slot = allFieldsCount * FIELD_SLOTS;
+    for (int i = 0; i < allFieldsCount; i++) {
+      short flags = getFieldAccessFlags(i);
+      AccessFlags access = new AccessFlags(flags);
+      if (i == index) {
+        if (access.fieldHasGenericSignature()) {
+          return getFields().getShortAt(generic_signature_slot);
+        } else {
+          return 0;
+        }
+      } else {
+        if (access.fieldHasGenericSignature()) {
+          generic_signature_slot ++;
+        }
+      }
+    }
+    return 0;
   }
 
   public Symbol getFieldGenericSignature(int index) {
@@ -309,7 +325,18 @@
   public ObjArray  getTransitiveInterfaces() { return (ObjArray)     transitiveInterfaces.getValue(this); }
   public TypeArray getFields()              { return (TypeArray)    fields.getValue(this); }
   public int       getJavaFieldsCount()     { return                (int) javaFieldsCount.getValue(this); }
-  public int       getAllFieldsCount()      { return                (int)getFields().getLength() / FIELD_SLOTS; }
+  public int       getAllFieldsCount()      {
+    int len = (int)getFields().getLength();
+    int allFieldsCount = 0;
+    for (; allFieldsCount*FIELD_SLOTS < len; allFieldsCount++) {
+      short flags = getFieldAccessFlags(allFieldsCount);
+      AccessFlags access = new AccessFlags(flags);
+      if (access.fieldHasGenericSignature()) {
+        len --;
+      }
+    }
+    return allFieldsCount;
+  }
   public ConstantPool getConstants()        { return (ConstantPool) constants.getValue(this); }
   public Oop       getClassLoader()         { return                classLoader.getValue(this); }
   public Oop       getProtectionDomain()    { return                protectionDomain.getValue(this); }
diff -r 2040997cba56 -r bd568544be7f agent/src/share/classes/sun/jvm/hotspot/runtime/ClassConstants.java
--- a/agent/src/share/classes/sun/jvm/hotspot/runtime/ClassConstants.java	Fri Jun 01 14:12:10 2012 -0700
+++ b/agent/src/share/classes/sun/jvm/hotspot/runtime/ClassConstants.java	Fri Jun 01 15:24:08 2012 -0700
@@ -153,6 +153,8 @@
     public static final long JVM_ACC_FIELD_ACCESS_WATCHED         = 0x00002000;
     // field modification is watched by JVMTI
     public static final long JVM_ACC_FIELD_MODIFICATION_WATCHED   = 0x00008000;
+    // field has generic signature
+    public static final long JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE  = 0x00000800;
 
     // flags accepted by set_field_flags
     public static final long JVM_ACC_FIELD_FLAGS = 0x00008000 | JVM_ACC_WRITTEN_FLAGS;
diff -r 2040997cba56 -r bd568544be7f make/hotspot_version
--- a/make/hotspot_version	Fri Jun 01 14:12:10 2012 -0700
+++ b/make/hotspot_version	Fri Jun 01 15:24:08 2012 -0700
@@ -35,7 +35,7 @@
 
 HS_MAJOR_VER=24
 HS_MINOR_VER=0
-HS_BUILD_NUMBER=12
+HS_BUILD_NUMBER=13
 
 JDK_MAJOR_VER=1
 JDK_MINOR_VER=8
diff -r 2040997cba56 -r bd568544be7f make/jprt.properties
--- a/make/jprt.properties	Fri Jun 01 14:12:10 2012 -0700
+++ b/make/jprt.properties	Fri Jun 01 15:24:08 2012 -0700
@@ -133,7 +133,8 @@
     ${jprt.my.linux.x64}-{product|fastdebug}, \
     ${jprt.my.macosx.x64}-{product|fastdebug|debug}, \
     ${jprt.my.windows.i586}-{product|fastdebug|debug}, \
-    ${jprt.my.windows.x64}-{product|fastdebug|debug}
+    ${jprt.my.windows.x64}-{product|fastdebug|debug}, \
+    ${jprt.my.linux.armvfp}-{product|fastdebug}
 
 jprt.build.targets.open= \
     ${jprt.my.solaris.i586}-{productOpen}, \
diff -r 2040997cba56 -r bd568544be7f make/solaris/makefiles/defs.make
--- a/make/solaris/makefiles/defs.make	Fri Jun 01 14:12:10 2012 -0700
+++ b/make/solaris/makefiles/defs.make	Fri Jun 01 15:24:08 2012 -0700
@@ -123,25 +123,10 @@
   ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
     # Default OBJCOPY comes from the SUNWbinutils package:
     DEF_OBJCOPY=/usr/sfw/bin/gobjcopy
-    ifeq ($(VM_PLATFORM),solaris_amd64)
-      # On Solaris AMD64/X64, gobjcopy is not happy and fails:
-      #
-      # usr/sfw/bin/gobjcopy --add-gnu-debuglink=<lib>.debuginfo <lib>.so
-      # BFD: stKPaiop: Not enough room for program headers, try linking with -N
-      # /usr/sfw/bin/gobjcopy: stKPaiop: Bad value
-      # BFD: stKPaiop: Not enough room for program headers, try linking with -N
-      # /usr/sfw/bin/gobjcopy: libsaproc.debuginfo: Bad value
-      # BFD: stKPaiop: Not enough room for program headers, try linking with -N
-      # /usr/sfw/bin/gobjcopy: stKPaiop: Bad value
-      _JUNK_ := $(shell \
-        echo >&2 "INFO: $(DEF_OBJCOPY) is not working on Solaris AMD64/X64")
-      OBJCOPY=
-    else
-      OBJCOPY=$(shell test -x $(DEF_OBJCOPY) && echo $(DEF_OBJCOPY))
-      ifneq ($(ALT_OBJCOPY),)
-        _JUNK_ := $(shell echo >&2 "INFO: ALT_OBJCOPY=$(ALT_OBJCOPY)")
-        OBJCOPY=$(shell test -x $(ALT_OBJCOPY) && echo $(ALT_OBJCOPY))
-      endif
+    OBJCOPY=$(shell test -x $(DEF_OBJCOPY) && echo $(DEF_OBJCOPY))
+    ifneq ($(ALT_OBJCOPY),)
+      _JUNK_ := $(shell echo >&2 "INFO: ALT_OBJCOPY=$(ALT_OBJCOPY)")
+      OBJCOPY=$(shell test -x $(ALT_OBJCOPY) && echo $(ALT_OBJCOPY))
     endif
   else
     OBJCOPY=
diff -r 2040997cba56 -r bd568544be7f make/solaris/makefiles/dtrace.make
--- a/make/solaris/makefiles/dtrace.make	Fri Jun 01 14:12:10 2012 -0700
+++ b/make/solaris/makefiles/dtrace.make	Fri Jun 01 15:24:08 2012 -0700
@@ -108,15 +108,24 @@
 XLIBJVM_DTRACE_G_DEBUGINFO = 64/$(LIBJVM_DTRACE_G_DEBUGINFO)
 XLIBJVM_DTRACE_G_DIZ       = 64/$(LIBJVM_DTRACE_G_DIZ)
 
-$(XLIBJVM_DB): $(DTRACE_SRCDIR)/$(JVM_DB).c $(JVMOFFS).h $(LIBJVM_DB_MAPFILE)
+$(XLIBJVM_DB): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(DTRACE_SRCDIR)/$(JVM_DB).c $(JVMOFFS).h $(LIBJVM_DB_MAPFILE)
 	@echo Making $@
 	$(QUIETLY) mkdir -p 64/ ; \
 	$(CC) $(SYMFLAG) $(ARCHFLAG/$(ISA)) -D$(TYPE) -I. -I$(GENERATED) \
 		$(SHARED_FLAG) $(LFLAGS_JVM_DB) -o $@ $(DTRACE_SRCDIR)/$(JVM_DB).c -lc
 	[ -f $(XLIBJVM_DB_G) ] || { ln -s $(LIBJVM_DB) $(XLIBJVM_DB_G); }
 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+# gobjcopy crashes on "empty" section headers with the SHF_ALLOC flag set.
+# Clear the SHF_ALLOC flag (if set) from empty section headers.
+# An empty section header has sh_addr == 0 and sh_size == 0.
+# This problem has only been seen on Solaris X64, but we call this tool
+# on all Solaris builds just in case.
+	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(XLIBJVM_DB_DEBUGINFO)
-	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(XLIBJVM_DB_DEBUGINFO) $@
+# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
+# Use $(ADD_GNU_DEBUGLINK) until a fixed $(OBJCOPY) is available.
+#	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(XLIBJVM_DB_DEBUGINFO) $@
+	$(QUIETLY) $(ADD_GNU_DEBUGLINK) $(XLIBJVM_DB_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
 	$(QUIETLY) $(STRIP) $@
   else
@@ -133,15 +142,19 @@
   endif
 endif
 
-$(XLIBJVM_DTRACE): $(DTRACE_SRCDIR)/$(JVM_DTRACE).c $(DTRACE_SRCDIR)/$(JVM_DTRACE).h $(LIBJVM_DTRACE_MAPFILE)
+$(XLIBJVM_DTRACE): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(DTRACE_SRCDIR)/$(JVM_DTRACE).c $(DTRACE_SRCDIR)/$(JVM_DTRACE).h $(LIBJVM_DTRACE_MAPFILE)
 	@echo Making $@
 	$(QUIETLY) mkdir -p 64/ ; \
 	$(CC) $(SYMFLAG) $(ARCHFLAG/$(ISA)) -D$(TYPE) -I. \
 		$(SHARED_FLAG) $(LFLAGS_JVM_DTRACE) -o $@ $(DTRACE_SRCDIR)/$(JVM_DTRACE).c -lc -lthread -ldoor
 	[ -f $(XLIBJVM_DTRACE_G) ] || { ln -s $(LIBJVM_DTRACE) $(XLIBJVM_DTRACE_G); }
 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+# Clear the SHF_ALLOC flag (if set) from empty section headers.
+	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(XLIBJVM_DTRACE_DEBUGINFO)
-	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(XLIBJVM_DTRACE_DEBUGINFO) $@
+# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
+#	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(XLIBJVM_DTRACE_DEBUGINFO) $@
+	$(QUIETLY) $(ADD_GNU_DEBUGLINK) $(XLIBJVM_DTRACE_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
 	$(QUIETLY) $(STRIP) $@
   else
@@ -198,14 +211,18 @@
 $(JVMOFFS.o): $(JVMOFFS).h $(JVMOFFS).cpp 
 	$(QUIETLY) $(CXX) -c -I. -o $@ $(ARCHFLAG) -D$(TYPE) $(JVMOFFS).cpp
 
-$(LIBJVM_DB): $(DTRACE_SRCDIR)/$(JVM_DB).c $(JVMOFFS.o) $(XLIBJVM_DB) $(LIBJVM_DB_MAPFILE)
+$(LIBJVM_DB): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(DTRACE_SRCDIR)/$(JVM_DB).c $(JVMOFFS.o) $(XLIBJVM_DB) $(LIBJVM_DB_MAPFILE)
 	@echo Making $@
 	$(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) -D$(TYPE) -I. -I$(GENERATED) \
 		$(SHARED_FLAG) $(LFLAGS_JVM_DB) -o $@ $(DTRACE_SRCDIR)/$(JVM_DB).c -lc
 	[ -f $(LIBJVM_DB_G) ] || { ln -s $@ $(LIBJVM_DB_G); }
 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+# Clear the SHF_ALLOC flag (if set) from empty section headers.
+	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJVM_DB_DEBUGINFO)
-	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DB_DEBUGINFO) $@
+# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
+#	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DB_DEBUGINFO) $@
+	$(QUIETLY) $(ADD_GNU_DEBUGLINK) $(LIBJVM_DB_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
 	$(QUIETLY) $(STRIP) $@
   else
@@ -222,14 +239,18 @@
   endif
 endif
 
-$(LIBJVM_DTRACE): $(DTRACE_SRCDIR)/$(JVM_DTRACE).c $(XLIBJVM_DTRACE) $(DTRACE_SRCDIR)/$(JVM_DTRACE).h $(LIBJVM_DTRACE_MAPFILE)
+$(LIBJVM_DTRACE): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(DTRACE_SRCDIR)/$(JVM_DTRACE).c $(XLIBJVM_DTRACE) $(DTRACE_SRCDIR)/$(JVM_DTRACE).h $(LIBJVM_DTRACE_MAPFILE)
 	@echo Making $@
 	$(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) -D$(TYPE) -I.  \
 		$(SHARED_FLAG) $(LFLAGS_JVM_DTRACE) -o $@ $(DTRACE_SRCDIR)/$(JVM_DTRACE).c -lc -lthread -ldoor
 	[ -f $(LIBJVM_DTRACE_G) ] || { ln -s $@ $(LIBJVM_DTRACE_G); }
 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+# Clear the SHF_ALLOC flag (if set) from empty section headers.
+	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJVM_DTRACE_DEBUGINFO)
-	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DTRACE_DEBUGINFO) $@
+# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
+#	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DTRACE_DEBUGINFO) $@
+	$(QUIETLY) $(ADD_GNU_DEBUGLINK) $(LIBJVM_DTRACE_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
 	$(QUIETLY) $(STRIP) $@
   else
diff -r 2040997cba56 -r bd568544be7f make/solaris/makefiles/fix_empty_sec_hdr_flags.make
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/make/solaris/makefiles/fix_empty_sec_hdr_flags.make	Fri Jun 01 15:24:08 2012 -0700
@@ -0,0 +1,51 @@
+#
+# Copyright (c) 2012, 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.
+#  
+#
+
+# Rules to build fix_empty_sec_hdr_flags, used by vm.make on Solaris
+
+GENERATED                       = ../generated
+FIX_EMPTY_SEC_HDR_FLAGS         = $(GENERATED)/fix_empty_sec_hdr_flags
+
+FIX_EMPTY_SEC_HDR_FLAGS_DIR     = $(GAMMADIR)/src/os/solaris/fix_empty_sec_hdr_flags
+FIX_EMPTY_SEC_HDR_FLAGS_SRC     = $(FIX_EMPTY_SEC_HDR_FLAGS_DIR)/fix_empty_sec_hdr_flags.c
+FIX_EMPTY_SEC_HDR_FLAGS_FLAGS   = 
+LIBS_FIX_EMPTY_SEC_HDR_FLAGS   += -lelf
+
+ifeq ("${Platform_compiler}", "sparcWorks")
+# Enable the following FIX_EMPTY_SEC_HDR_FLAGS_FLAGS addition if you need to
+# compare the built ELF objects.
+#
+# The -g option makes static data global and the "-W0,-noglobal"
+# option tells the compiler to not globalize static data using a unique
+# globalization prefix. Instead force the use of a static globalization
+# prefix based on the source filepath so the objects from two identical
+# compilations are the same.
+#
+# Note: The blog says to use "-W0,-xglobalstatic", but that doesn't
+#       seem to work. I got "-W0,-noglobal" from Kelly and that works.
+#FIX_EMPTY_SEC_HDR_FLAGS_FLAGS += -W0,-noglobal
+endif # Platform_compiler == sparcWorks
+
+$(FIX_EMPTY_SEC_HDR_FLAGS): $(FIX_EMPTY_SEC_HDR_FLAGS_SRC)
+	$(CC) -g -o $@ $< $(FIX_EMPTY_SEC_HDR_FLAGS_FLAGS) $(LIBS_FIX_EMPTY_SEC_HDR_FLAGS)
diff -r 2040997cba56 -r bd568544be7f make/solaris/makefiles/jsig.make
--- a/make/solaris/makefiles/jsig.make	Fri Jun 01 14:12:10 2012 -0700
+++ b/make/solaris/makefiles/jsig.make	Fri Jun 01 15:24:08 2012 -0700
@@ -52,14 +52,23 @@
 LFLAGS_JSIG += -mt -xnolib
 endif
 
-$(LIBJSIG): $(JSIGSRCDIR)/jsig.c $(LIBJSIG_MAPFILE)
+$(LIBJSIG): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(JSIGSRCDIR)/jsig.c $(LIBJSIG_MAPFILE)
 	@echo Making signal interposition lib...
 	$(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) $(SHARED_FLAG) $(PICFLAG) \
-                         $(LFLAGS_JSIG) -o $@ $< -ldl
+                         $(LFLAGS_JSIG) -o $@ $(JSIGSRCDIR)/jsig.c -ldl
 	[ -f $(LIBJSIG_G) ] || { ln -s $@ $(LIBJSIG_G); }
 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+# gobjcopy crashes on "empty" section headers with the SHF_ALLOC flag set.
+# Clear the SHF_ALLOC flag (if set) from empty section headers.
+# An empty section header has sh_addr == 0 and sh_size == 0.
+# This problem has only been seen on Solaris X64, but we call this tool
+# on all Solaris builds just in case.
+	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJSIG_DEBUGINFO)
-	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJSIG_DEBUGINFO) $@
+# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
+# Use $(ADD_GNU_DEBUGLINK) until a fixed $(OBJCOPY) is available.
+#	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJSIG_DEBUGINFO) $@
+	$(QUIETLY) $(ADD_GNU_DEBUGLINK) $(LIBJSIG_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
 	$(QUIETLY) $(STRIP) $@
   else
diff -r 2040997cba56 -r bd568544be7f make/solaris/makefiles/saproc.make
--- a/make/solaris/makefiles/saproc.make	Fri Jun 01 14:12:10 2012 -0700
+++ b/make/solaris/makefiles/saproc.make	Fri Jun 01 15:24:08 2012 -0700
@@ -90,7 +90,7 @@
 # when actually building on Nevada-B158 or earlier:
 #SOLARIS_11_B159_OR_LATER=-DSOLARIS_11_B159_OR_LATER
 
-$(LIBSAPROC): $(SASRCFILES) $(SAMAPFILE)
+$(LIBSAPROC): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(SASRCFILES) $(SAMAPFILE)
 	$(QUIETLY) if [ "$(BOOT_JAVA_HOME)" = "" ]; then \
 	  echo "ALT_BOOTDIR, BOOTDIR or JAVA_HOME needs to be defined to build SA"; \
 	  exit 1; \
@@ -109,8 +109,17 @@
 	           -ldl -ldemangle -lthread -lc
 	[ -f $(LIBSAPROC_G) ] || { ln -s $@ $(LIBSAPROC_G); }
 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+# gobjcopy crashes on "empty" section headers with the SHF_ALLOC flag set.
+# Clear the SHF_ALLOC flag (if set) from empty section headers.
+# An empty section header has sh_addr == 0 and sh_size == 0.
+# This problem has only been seen on Solaris X64, but we call this tool
+# on all Solaris builds just in case.
+	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBSAPROC_DEBUGINFO)
-	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBSAPROC_DEBUGINFO) $@
+# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
+# Use $(ADD_GNU_DEBUGLINK) until a fixed $(OBJCOPY) is available.
+#	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBSAPROC_DEBUGINFO) $@
+	$(QUIETLY) $(ADD_GNU_DEBUGLINK) $(LIBSAPROC_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
 	$(QUIETLY) $(STRIP) $@
   else
diff -r 2040997cba56 -r bd568544be7f make/solaris/makefiles/vm.make
--- a/make/solaris/makefiles/vm.make	Fri Jun 01 14:12:10 2012 -0700
+++ b/make/solaris/makefiles/vm.make	Fri Jun 01 15:24:08 2012 -0700
@@ -149,6 +149,10 @@
 include $(MAKEFILES_DIR)/add_gnu_debuglink.make
 
 #----------------------------------------------------------------------
+# fix_empty_sec_hdr_flags tool
+include $(MAKEFILES_DIR)/fix_empty_sec_hdr_flags.make
+
+#----------------------------------------------------------------------
 # JVM
 
 JVM      = jvm
@@ -280,7 +284,7 @@
 LINK_VM = $(LINK_LIB.CXX)
 endif
 # making the library:
-$(LIBJVM): $(ADD_GNU_DEBUGLINK) $(LIBJVM.o) $(LIBJVM_MAPFILE) 
+$(LIBJVM): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(LIBJVM.o) $(LIBJVM_MAPFILE) 
 ifeq ($(filter -sbfast -xsbfast, $(CFLAGS_BROWSE)),)
 	@echo Linking vm...
 	$(QUIETLY) $(LINK_LIB.CXX/PRE_HOOK)
@@ -290,10 +294,15 @@
 	$(QUIETLY) [ -f $(LIBJVM_G) ] || ln -s $@ $(LIBJVM_G)
 	$(QUIETLY) [ -f $(LIBJVM_G).1 ] || ln -s $@.1 $(LIBJVM_G).1
 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+# gobjcopy crashes on "empty" section headers with the SHF_ALLOC flag set.
+# Clear the SHF_ALLOC flag (if set) from empty section headers.
+# An empty section header has sh_addr == 0 and sh_size == 0.
+# This problem has only been seen on Solaris X64, but we call this tool
+# on all Solaris builds just in case.
+	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJVM_DEBUGINFO)
-# $(OBJCOPY) --add-gnu-debuglink=... corrupts the SUNW_dof section
-# in libjvm.so. Use $(ADD_GNU_DEBUGLINK) until a fixed $(OBJCOPY)
-# is available.
+# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
+# Use $(ADD_GNU_DEBUGLINK) until a fixed $(OBJCOPY) is available.
 #	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DEBUGINFO) $@
 	$(QUIETLY) $(ADD_GNU_DEBUGLINK) $(LIBJVM_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
diff -r 2040997cba56 -r bd568544be7f make/windows/makefiles/defs.make
--- a/make/windows/makefiles/defs.make	Fri Jun 01 14:12:10 2012 -0700
+++ b/make/windows/makefiles/defs.make	Fri Jun 01 15:24:08 2012 -0700
@@ -143,14 +143,7 @@
 MAKE_ARGS += ENABLE_FULL_DEBUG_SYMBOLS=$(ENABLE_FULL_DEBUG_SYMBOLS)
 
 ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
-  # Disable ZIP_DEBUGINFO_FILES by default because various tests are
-  # failing in nightly when the debug info files are ZIP'ed.
-  #ZIP_DEBUGINFO_FILES ?= 0
-  # The above conditional setting logic is unreliable on Windows for
-  # unknown reasons. We force ZIP_DEBUGINFO_FILES to be disabled on
-  # Windows until we figure out why the various tests are failing
-  # AND why the conditional setting logic is unreliable.
-  ZIP_DEBUGINFO_FILES=0
+  ZIP_DEBUGINFO_FILES ?= 1
 else
   ZIP_DEBUGINFO_FILES=0
 endif
diff -r 2040997cba56 -r bd568544be7f src/os/bsd/vm/osThread_bsd.hpp
--- a/src/os/bsd/vm/osThread_bsd.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/os/bsd/vm/osThread_bsd.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -42,26 +42,19 @@
 #ifdef _ALLBSD_SOURCE
 
 #ifdef __APPLE__
-  thread_t  _thread_id;
+  typedef thread_t thread_id_t;
 #else
-  pthread_t _thread_id;
+  typedef pthread_t thread_id_t;
+#endif
+
+#else
+  typedef pid_t thread_id_t;
 #endif
 
   // _pthread_id is the pthread id, which is used by library calls
   // (e.g. pthread_kill).
   pthread_t _pthread_id;
 
-#else
-  // _thread_id is kernel thread id (similar to LWP id on Solaris). Each
-  // thread has a unique thread_id (BsdThreads or NPTL). It can be used
-  // to access /proc.
-  pid_t     _thread_id;
-
-  // _pthread_id is the pthread id, which is used by library calls
-  // (e.g. pthread_kill).
-  pthread_t _pthread_id;
-#endif
-
   sigset_t _caller_sigmask; // Caller's signal mask
 
  public:
@@ -70,28 +63,11 @@
   sigset_t  caller_sigmask() const       { return _caller_sigmask; }
   void    set_caller_sigmask(sigset_t sigmask)  { _caller_sigmask = sigmask; }
 
-#ifdef _ALLBSD_SOURCE
-#ifdef __APPLE__
-  static size_t thread_id_size()         { return sizeof(thread_t); }
-  thread_t thread_id() const {
-    return _thread_id;
-  }
-#else
-  static size_t thread_id_size()         { return sizeof(pthread_t); }
-  pthread_t thread_id() const {
-    return _thread_id;
-  }
-#endif
-#else
-  static size_t thread_id_size()         { return sizeof(pid_t); }
-  pid_t thread_id() const {
-    return _thread_id;
-  }
-#endif
 #ifndef PRODUCT
   // Used for debugging, return a unique integer for each thread.
   intptr_t thread_identifier() const   { return (intptr_t)_pthread_id; }
 #endif
+
 #ifdef ASSERT
   // We expect no reposition failures so kill vm if we get one.
   //
@@ -99,21 +75,7 @@
     return false;
   }
 #endif // ASSERT
-#ifdef _ALLBSD_SOURCE
-#ifdef __APPLE__
-  void set_thread_id(thread_t id) {
-    _thread_id = id;
-  }
-#else
-  void set_thread_id(pthread_t id) {
-    _thread_id = id;
-  }
-#endif
-#else
-  void set_thread_id(pid_t id) {
-    _thread_id = id;
-  }
-#endif
+
   pthread_t pthread_id() const {
     return _pthread_id;
   }
diff -r 2040997cba56 -r bd568544be7f src/os/linux/vm/osThread_linux.hpp
--- a/src/os/linux/vm/osThread_linux.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/os/linux/vm/osThread_linux.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -24,6 +24,8 @@
 
 #ifndef OS_LINUX_VM_OSTHREAD_LINUX_HPP
 #define OS_LINUX_VM_OSTHREAD_LINUX_HPP
+ public:
+  typedef pid_t thread_id_t;
 
  private:
   int _thread_type;
@@ -37,13 +39,6 @@
     _thread_type = type;
   }
 
- private:
-
-  // _thread_id is kernel thread id (similar to LWP id on Solaris). Each
-  // thread has a unique thread_id (LinuxThreads or NPTL). It can be used
-  // to access /proc.
-  pid_t     _thread_id;
-
   // _pthread_id is the pthread id, which is used by library calls
   // (e.g. pthread_kill).
   pthread_t _pthread_id;
@@ -56,11 +51,6 @@
   sigset_t  caller_sigmask() const       { return _caller_sigmask; }
   void    set_caller_sigmask(sigset_t sigmask)  { _caller_sigmask = sigmask; }
 
-  static size_t thread_id_size()         { return sizeof(pid_t); }
-
-  pid_t thread_id() const {
-    return _thread_id;
-  }
 #ifndef PRODUCT
   // Used for debugging, return a unique integer for each thread.
   int thread_identifier() const   { return _thread_id; }
@@ -72,9 +62,6 @@
     return false;
   }
 #endif // ASSERT
-  void set_thread_id(pid_t id) {
-    _thread_id = id;
-  }
   pthread_t pthread_id() const {
     return _pthread_id;
   }
diff -r 2040997cba56 -r bd568544be7f src/os/solaris/fix_empty_sec_hdr_flags/fix_empty_sec_hdr_flags.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/os/solaris/fix_empty_sec_hdr_flags/fix_empty_sec_hdr_flags.c	Fri Jun 01 15:24:08 2012 -0700
@@ -0,0 +1,181 @@
+/*
+ * Copyright (c) 2012, 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.
+ *
+ */
+
+/*
+ * Name:        fix_empty_sec_hdr_flags.c
+ *
+ * Description: Remove the SHF_ALLOC flag from "empty" section headers.
+ *     An "empty" section header has sh_addr == 0 and sh_size == 0.
+ *
+ *     This program is adapted from the example program shown on the
+ *     elf(3elf) man page and from code from the Solaris compiler
+ *     driver.
+ */
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <libelf.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static void failure(void);
+
+void
+main(int argc, char ** argv) {
+    void *        ehdr;           /* ELF header */
+    unsigned int  i;              /* section counter */
+    int           fd;             /* descriptor for file */
+    Elf *         elf;            /* ELF descriptor */
+    char *        elf_ident;      /* ELF identity string */
+    char *        elf_obj;        /* elf_obj file */
+    int           fix_count;      /* number of flags fixed */
+    int           is_elfclass64;  /* is an ELFCLASS64 file? */
+    Elf_Scn *     scn;            /* ELF section descriptor */
+    void *        shdr;           /* ELF section header */
+    Elf_Data *    shstrtab;       /* ELF section header string table */
+
+    if (argc != 2) {
+        (void) fprintf(stderr, "Usage: %s elf_obj\n", argv[0]);
+        exit(2);
+    }
+
+    /* open the elf_obj */
+    elf_obj = argv[1];
+    if ((fd = open(elf_obj, O_RDWR)) == -1) {
+        (void) fprintf(stderr, "%s: cannot open file.\n", elf_obj);
+        exit(3);
+    }
+
+    (void) printf("Opening '%s' for update\n", elf_obj);
+    (void) fflush(stdout);
+    (void) elf_version(EV_CURRENT);  /* coordinate ELF versions */
+
+    /* obtain the ELF descriptors from the input file */
+    if ((elf = elf_begin(fd, ELF_C_RDWR, NULL)) == NULL) {
+        failure();
+    }
+
+    /* determine if ELFCLASS64 or not? */
+    elf_ident = elf_getident(elf, NULL);
+    is_elfclass64 = (elf_ident[EI_CLASS] == ELFCLASS64);
+
+    /* get the ELF header */
+    if (is_elfclass64) {
+        ehdr = elf64_getehdr(elf);
+    } else {
+        ehdr = elf32_getehdr(elf);
+    }
+    if (ehdr == NULL) {
+        failure();
+    }
+
+    /* get the ELF section descriptor */
+    if (is_elfclass64) {
+        scn = elf_getscn(elf, ((Elf64_Ehdr *) ehdr)->e_shstrndx);
+    } else {
+        scn = elf_getscn(elf, ((Elf32_Ehdr *) ehdr)->e_shstrndx);
+    }
+    if (scn == NULL) {
+        failure();
+    }
+
+    /* get the section header string table */
+    shstrtab = elf_getdata(scn, NULL);
+    if (shstrtab == NULL) {
+        failure();
+    }
+
+    fix_count = 0;
+
+    /* traverse the sections of the input file */
+    for (i = 1, scn = NULL; scn = elf_nextscn(elf, scn); i++) {
+        int    has_flag_set;  /* is SHF_ALLOC flag set? */
+        int    is_empty;      /* is section empty? */
+        char * name;          /* short hand pointer */
+
+        /* get the section header */
+        if (is_elfclass64) {
+            shdr = elf64_getshdr(scn);
+        } else {
+            shdr = elf32_getshdr(scn);
+        }
+        if (shdr == NULL) {
+            failure();
+        }
+
+        if (is_elfclass64) {
+            name = (char *)shstrtab->d_buf + ((Elf64_Shdr *) shdr)->sh_name;
+        } else {
+            name = (char *)shstrtab->d_buf + ((Elf32_Shdr *) shdr)->sh_name;
+        }
+
+        if (is_elfclass64) {
+            has_flag_set = ((Elf64_Shdr *) shdr)->sh_flags & SHF_ALLOC;
+            is_empty = ((Elf64_Shdr *) shdr)->sh_addr == 0 &&
+                ((Elf64_Shdr *) shdr)->sh_size == 0;
+        } else {
+            has_flag_set = ((Elf32_Shdr *) shdr)->sh_flags & SHF_ALLOC;
+            is_empty = ((Elf32_Shdr *) shdr)->sh_addr == 0 &&
+                ((Elf32_Shdr *) shdr)->sh_size == 0;
+        }
+
+        if (is_empty && has_flag_set) {
+            (void) printf("section[%u] '%s' is empty, "
+                "but SHF_ALLOC flag is set.\n", i, name);
+            (void) printf("Clearing the SHF_ALLOC flag.\n");
+
+            if (is_elfclass64) {
+                ((Elf64_Shdr *) shdr)->sh_flags &= ~SHF_ALLOC;
+            } else {
+                ((Elf32_Shdr *) shdr)->sh_flags &= ~SHF_ALLOC;
+            }
+            fix_count++;
+        }
+    }  /* end for each ELF section */
+
+    if (fix_count > 0) {
+        (void) printf("Saving %d updates to '%s'\n", fix_count, elf_obj);
+        (void) fflush(stdout);
+        (void) elf_update(elf, ELF_C_NULL);   /* recalc ELF memory structures */
+        (void) elf_update(elf, ELF_C_WRITE);  /* write out changes to ELF obj */
+    } else {
+        (void) printf("No SHF_ALLOC flags needed to be cleared.\n");
+    }
+
+    (void) elf_end(elf);                  /* done with ELF obj */
+    (void) close(fd);
+
+    (void) printf("Done %s '%s'\n",
+               (fix_count > 0) ? "updating" : "with", elf_obj);
+    (void) fflush(stdout);
+    exit(0);
+}  /* end main */
+
+
+static void
+failure() {
+    (void) fprintf(stderr, "%s\n", elf_errmsg(elf_errno()));
+    exit(6);
+}
diff -r 2040997cba56 -r bd568544be7f src/os/solaris/vm/osThread_solaris.hpp
--- a/src/os/solaris/vm/osThread_solaris.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/os/solaris/vm/osThread_solaris.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -26,9 +26,10 @@
 #define OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP
 
 // This is embedded via include into the class OSThread
+ public:
+  typedef thread_t thread_id_t;
 
  private:
-  thread_t _thread_id;         // Solaris thread id
   uint     _lwp_id;            // lwp ID, only used with bound threads
   int      _native_priority;   // Saved native priority when starting
                                // a bound thread
@@ -36,8 +37,6 @@
   bool     _vm_created_thread; // true if the VM created this thread,
                                // false if primary thread or attached thread
  public:
-  static size_t thread_id_size()   { return sizeof(thread_t); }
-  thread_t thread_id() const       { return _thread_id; }
   uint     lwp_id() const          { return _lwp_id; }
   int      native_priority() const { return _native_priority; }
 
@@ -63,7 +62,6 @@
     return true;
   }
 #endif
-  void set_thread_id(thread_t id)    { _thread_id = id; }
   void set_lwp_id(uint id)           { _lwp_id = id; }
   void set_native_priority(int prio) { _native_priority = prio; }
 
diff -r 2040997cba56 -r bd568544be7f src/os/windows/vm/osThread_windows.hpp
--- a/src/os/windows/vm/osThread_windows.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/os/windows/vm/osThread_windows.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -25,12 +25,13 @@
 #ifndef OS_WINDOWS_VM_OSTHREAD_WINDOWS_HPP
 #define OS_WINDOWS_VM_OSTHREAD_WINDOWS_HPP
 
-typedef void* HANDLE;
+  typedef void* HANDLE;
+ public:
+  typedef unsigned long thread_id_t;
 
  private:
   // Win32-specific thread information
   HANDLE _thread_handle;        // Win32 thread handle
-  unsigned long _thread_id;     // Win32 thread id
   HANDLE _interrupt_event;      // Event signalled on thread interrupt
   ThreadState _last_state;
 
@@ -42,9 +43,6 @@
   HANDLE interrupt_event() const                   { return _interrupt_event; }
   void set_interrupt_event(HANDLE interrupt_event) { _interrupt_event = interrupt_event; }
 
-
-  static size_t thread_id_size()                   { return sizeof(unsigned long); }
-  unsigned long thread_id() const                  { return _thread_id; }
 #ifndef PRODUCT
   // Used for debugging, return a unique integer for each thread.
   int thread_identifier() const                    { return _thread_id; }
@@ -56,8 +54,6 @@
     return false;
   }
 #endif // ASSERT
-  void set_thread_id(unsigned long thread_id)      { _thread_id = thread_id; }
-
   bool is_try_mutex_enter()                        { return false; }
 
   // This is a temporary fix for the thread states during
diff -r 2040997cba56 -r bd568544be7f src/os_cpu/bsd_x86/vm/vmStructs_bsd_x86.hpp
--- a/src/os_cpu/bsd_x86/vm/vmStructs_bsd_x86.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/os_cpu/bsd_x86/vm/vmStructs_bsd_x86.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -29,18 +29,12 @@
 // constants required by the Serviceability Agent. This file is
 // referenced by vmStructs.cpp.
 
-#ifdef __APPLE__
-#define OS_THREAD_ID_TYPE thread_t
-#else
-#define OS_THREAD_ID_TYPE pthread_t
-#endif
-
 #define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
                                                                                                                                      \
   /******************************/                                                                                                   \
   /* Threads (NOTE: incomplete) */                                                                                                   \
   /******************************/                                                                                                   \
-  nonstatic_field(OSThread,                      _thread_id,                                      OS_THREAD_ID_TYPE)                 \
+  nonstatic_field(OSThread,                      _thread_id,                                      OSThread::thread_id_t)             \
   nonstatic_field(OSThread,                      _pthread_id,                                     pthread_t)                         \
   /* This must be the last entry, and must be present */                                                                             \
   last_entry()
@@ -52,7 +46,7 @@
   /* Posix Thread IDs   */                                                \
   /**********************/                                                \
                                                                           \
-  declare_unsigned_integer_type(thread_t)                                 \
+  declare_unsigned_integer_type(OSThread::thread_id_t)                    \
   declare_unsigned_integer_type(pthread_t)                                \
                                                                           \
   /* This must be the last entry, and must be present */                  \
diff -r 2040997cba56 -r bd568544be7f src/os_cpu/linux_sparc/vm/vmStructs_linux_sparc.hpp
--- a/src/os_cpu/linux_sparc/vm/vmStructs_linux_sparc.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/os_cpu/linux_sparc/vm/vmStructs_linux_sparc.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2012, 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
@@ -36,7 +36,7 @@
   /******************************/                                                                                                   \
                                                                                                                                      \
   nonstatic_field(JavaThread,                  _base_of_stack_pointer,                        intptr_t*)                             \
-  nonstatic_field(OSThread,                    _thread_id,                                    pid_t)                                 \
+  nonstatic_field(OSThread,                    _thread_id,                                    OSThread::thread_id_t)                 \
   nonstatic_field(OSThread,                    _pthread_id,                                   pthread_t)                             \
   /* This must be the last entry, and must be present */                                                                             \
   last_entry()
@@ -48,7 +48,7 @@
   /* POSIX Thread IDs */                                                  \
   /**********************/                                                \
                                                                           \
-  declare_integer_type(pid_t)                                             \
+  declare_integer_type(OSThread::thread_id_t)                             \
   declare_unsigned_integer_type(pthread_t)                                \
                                                                           \
   /* This must be the last entry, and must be present */                  \
diff -r 2040997cba56 -r bd568544be7f src/os_cpu/linux_x86/vm/vmStructs_linux_x86.hpp
--- a/src/os_cpu/linux_x86/vm/vmStructs_linux_x86.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/os_cpu/linux_x86/vm/vmStructs_linux_x86.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2012, 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
@@ -34,7 +34,7 @@
   /******************************/                                                                                                   \
   /* Threads (NOTE: incomplete) */                                                                                                   \
   /******************************/                                                                                                   \
-  nonstatic_field(OSThread,                      _thread_id,                                      pid_t)                             \
+  nonstatic_field(OSThread,                      _thread_id,                                      OSThread::thread_id_t)             \
   nonstatic_field(OSThread,                      _pthread_id,                                     pthread_t)                         \
   /* This must be the last entry, and must be present */                                                                             \
   last_entry()
@@ -46,7 +46,7 @@
   /* Posix Thread IDs   */                                                \
   /**********************/                                                \
                                                                           \
-  declare_integer_type(pid_t)                                             \
+  declare_integer_type(OSThread::thread_id_t)                             \
   declare_unsigned_integer_type(pthread_t)                                \
                                                                           \
   /* This must be the last entry, and must be present */                  \
diff -r 2040997cba56 -r bd568544be7f src/os_cpu/solaris_sparc/vm/vmStructs_solaris_sparc.hpp
--- a/src/os_cpu/solaris_sparc/vm/vmStructs_solaris_sparc.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/os_cpu/solaris_sparc/vm/vmStructs_solaris_sparc.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2012, 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
@@ -36,7 +36,7 @@
   /******************************/                                                                                                   \
                                                                                                                                      \
   nonstatic_field(JavaThread,                  _base_of_stack_pointer,                        intptr_t*)                             \
-  nonstatic_field(OSThread,                    _thread_id,                                    thread_t)                              \
+  nonstatic_field(OSThread,                    _thread_id,                                    OSThread::thread_id_t)                 \
   /* This must be the last entry, and must be present */                                                                             \
   last_entry()
 
@@ -47,7 +47,7 @@
   /* Solaris Thread IDs */                                                \
   /**********************/                                                \
                                                                           \
-  declare_unsigned_integer_type(thread_t)                                 \
+  declare_unsigned_integer_type(OSThread::thread_id_t)                    \
                                                                           \
   /* This must be the last entry, and must be present */                  \
   last_entry()
diff -r 2040997cba56 -r bd568544be7f src/os_cpu/solaris_x86/vm/vmStructs_solaris_x86.hpp
--- a/src/os_cpu/solaris_x86/vm/vmStructs_solaris_x86.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/os_cpu/solaris_x86/vm/vmStructs_solaris_x86.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2012, 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
@@ -35,7 +35,7 @@
   /* Threads (NOTE: incomplete) */                                                                                                   \
   /******************************/                                                                                                   \
                                                                                                                                      \
-  nonstatic_field(OSThread,                      _thread_id,                                    thread_t)                              \
+  nonstatic_field(OSThread,                      _thread_id,                                    OSThread::thread_id_t)               \
                                                                                                                                      \
   /* This must be the last entry, and must be present */                                                                             \
   last_entry()
@@ -46,7 +46,7 @@
   /* Solaris Thread IDs */                                                \
   /**********************/                                                \
                                                                           \
-  declare_unsigned_integer_type(thread_t)                                 \
+  declare_unsigned_integer_type(OSThread::thread_id_t)                    \
                                                                           \
   /* This must be the last entry, and must be present */                  \
   last_entry()
diff -r 2040997cba56 -r bd568544be7f src/os_cpu/windows_x86/vm/vmStructs_windows_x86.hpp
--- a/src/os_cpu/windows_x86/vm/vmStructs_windows_x86.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/os_cpu/windows_x86/vm/vmStructs_windows_x86.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2012, 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
@@ -35,7 +35,7 @@
   /* Threads (NOTE: incomplete) */                                                                                                   \
   /******************************/                                                                                                   \
                                                                                                                                      \
-  nonstatic_field(OSThread,                    _thread_id,                                    unsigned long)                         \
+  nonstatic_field(OSThread,                    _thread_id,                                    OSThread::thread_id_t)                 \
   unchecked_nonstatic_field(OSThread,          _thread_handle,                                sizeof(HANDLE)) /* NOTE: no type */    \
                                                                                                                                      \
   /* This must be the last entry, and must be present */                                                                             \
@@ -43,6 +43,7 @@
 
 #define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
                                                                           \
+  declare_unsigned_integer_type(OSThread::thread_id_t)                    \
   /* This must be the last entry, and must be present */                  \
   last_entry()
 
diff -r 2040997cba56 -r bd568544be7f src/share/vm/classfile/classFileParser.cpp
--- a/src/share/vm/classfile/classFileParser.cpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/classfile/classFileParser.cpp	Fri Jun 01 15:24:08 2012 -0700
@@ -1082,12 +1082,36 @@
 
   int num_injected = 0;
   InjectedField* injected = JavaClasses::get_injected(class_name, &num_injected);
-
-  // Tuples of shorts [access, name index, sig index, initial value index, byte offset, generic signature index]
-  typeArrayOop new_fields = oopFactory::new_permanent_shortArray((length + num_injected) * FieldInfo::field_slots, CHECK_(nullHandle));
-  typeArrayHandle fields(THREAD, new_fields);
+  int total_fields = length + num_injected;
+
+  // The field array starts with tuples of shorts
+  // [access, name index, sig index, initial value index, byte offset].
+  // A generic signature slot only exists for field with generic
+  // signature attribute. And the access flag is set with
+  // JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE for that field. The generic
+  // signature slots are at the end of the field array and after all
+  // other fields data.
+  //
+  //   f1: [access, name index, sig index, initial value index, low_offset, high_offset]
+  //   f2: [access, name index, sig index, initial value index, low_offset, high_offset]
+  //       ...
+  //   fn: [access, name index, sig index, initial value index, low_offset, high_offset]
+  //       [generic signature index]
+  //       [generic signature index]
+  //       ...
+  //
+  // Allocate a temporary resource array for field data. For each field,
+  // a slot is reserved in the temporary array for the generic signature
+  // index. After parsing all fields, the data are copied to a permanent
+  // array and any unused slots will be discarded.
+  ResourceMark rm(THREAD);
+  u2* fa = NEW_RESOURCE_ARRAY_IN_THREAD(
+             THREAD, u2, total_fields * (FieldInfo::field_slots + 1));
 
   typeArrayHandle field_annotations;
+  // The generic signature slots start after all other fields' data.
+  int generic_signature_slot = total_fields * FieldInfo::field_slots;
+  int num_generic_signature = 0;
   for (int n = 0; n < length; n++) {
     cfs->guarantee_more(8, CHECK_(nullHandle));  // access_flags, name_index, descriptor_index, attributes_count
 
@@ -1135,14 +1159,19 @@
       if (is_synthetic) {
         access_flags.set_is_synthetic();
       }
+      if (generic_signature_index != 0) {
+        access_flags.set_field_has_generic_signature();
+        fa[generic_signature_slot] = generic_signature_index;
+        generic_signature_slot ++;
+        num_generic_signature ++;
+      }
     }
 
-    FieldInfo* field = FieldInfo::from_field_array(fields(), n);
+    FieldInfo* field = FieldInfo::from_field_array(fa, n);
     field->initialize(access_flags.as_short(),
                       name_index,
                       signature_index,
                       constantvalue_index,
-                      generic_signature_index,
                       0);
 
     BasicType type = cp->basic_type_for_signature_at(signature_index);
@@ -1155,8 +1184,8 @@
     field->set_offset(atype);
   }
 
+  int index = length;
   if (num_injected != 0) {
-    int index = length;
     for (int n = 0; n < num_injected; n++) {
       // Check for duplicates
       if (injected[n].may_be_java) {
@@ -1164,7 +1193,7 @@
         Symbol* signature = injected[n].signature();
         bool duplicate = false;
         for (int i = 0; i < length; i++) {
-          FieldInfo* f = FieldInfo::from_field_array(fields(), i);
+          FieldInfo* f = FieldInfo::from_field_array(fa, i);
           if (name      == cp->symbol_at(f->name_index()) &&
               signature == cp->symbol_at(f->signature_index())) {
             // Symbol is desclared in Java so skip this one
@@ -1179,12 +1208,11 @@
       }
 
       // Injected field
-      FieldInfo* field = FieldInfo::from_field_array(fields(), index);
+      FieldInfo* field = FieldInfo::from_field_array(fa, index);
       field->initialize(JVM_ACC_FIELD_INTERNAL,
                         injected[n].name_index,
                         injected[n].signature_index,
                         0,
-                        0,
                         0);
 
       BasicType type = FieldType::basic_type(injected[n].signature());
@@ -1197,17 +1225,27 @@
       field->set_offset(atype);
       index++;
     }
-
-    if (index < length + num_injected) {
-      // sometimes injected fields already exist in the Java source so
-      // the fields array could be too long.  In that case trim the
-      // fields array.
-      new_fields = oopFactory::new_permanent_shortArray(index * FieldInfo::field_slots, CHECK_(nullHandle));
-      for (int i = 0; i < index * FieldInfo::field_slots; i++) {
-        new_fields->short_at_put(i, fields->short_at(i));
-      }
-      fields = new_fields;
+  }
+
+  // Now copy the fields' data from the temporary resource array.
+  // Sometimes injected fields already exist in the Java source so
+  // the fields array could be too long.  In that case the
+  // fields array is trimed. Also unused slots that were reserved
+  // for generic signature indexes are discarded.
+  typeArrayOop new_fields = oopFactory::new_permanent_shortArray(
+    index * FieldInfo::field_slots + num_generic_signature,
+    CHECK_(nullHandle));
+  typeArrayHandle fields(THREAD, new_fields);
+  {
+    int i = 0;
+    for (; i < index * FieldInfo::field_slots; i++) {
+      new_fields->short_at_put(i, fa[i]);
     }
+    for (int j = total_fields * FieldInfo::field_slots;
+         j < generic_signature_slot; j++) {
+      new_fields->short_at_put(i++, fa[j]);
+    }
+    assert(i == new_fields->length(), "");
   }
 
   if (_need_verify && length > 1) {
diff -r 2040997cba56 -r bd568544be7f src/share/vm/classfile/systemDictionary.cpp
--- a/src/share/vm/classfile/systemDictionary.cpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/classfile/systemDictionary.cpp	Fri Jun 01 15:24:08 2012 -0700
@@ -2763,7 +2763,7 @@
       class_size += ik->local_interfaces()->size();
       class_size += ik->transitive_interfaces()->size();
       // We do not have to count implementors, since we only store one!
-      class_size += ik->all_fields_count() * FieldInfo::field_slots;
+      class_size += ik->fields()->length();
     }
   }
 
diff -r 2040997cba56 -r bd568544be7f src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp
--- a/src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp	Fri Jun 01 15:24:08 2012 -0700
@@ -58,8 +58,11 @@
 void CompactibleFreeListSpace::set_cms_values() {
   // Set CMS global values
   assert(MinChunkSize == 0, "already set");
-  #define numQuanta(x,y) ((x+y-1)/y)
-  MinChunkSize = numQuanta(sizeof(FreeChunk), MinObjAlignmentInBytes) * MinObjAlignment;
+
+  // MinChunkSize should be a multiple of MinObjAlignment and be large enough
+  // for chunks to contain a FreeChunk.
+  size_t min_chunk_size_in_bytes = align_size_up(sizeof(FreeChunk), MinObjAlignmentInBytes);
+  MinChunkSize = min_chunk_size_in_bytes / BytesPerWord;
 
   assert(IndexSetStart == 0 && IndexSetStride == 0, "already set");
   IndexSetStart  = MinChunkSize;
@@ -2534,12 +2537,8 @@
     " linear allocation buffers");
   assert(BinaryTreeDictionary<FreeChunk>::min_tree_chunk_size*HeapWordSize == sizeof(TreeChunk<FreeChunk>),
     "else MIN_TREE_CHUNK_SIZE is wrong");
-  assert((IndexSetStride == 2 && IndexSetStart == 4) ||                   // 32-bit
-         (IndexSetStride == 1 && IndexSetStart == 3), "just checking");   // 64-bit
-  assert((IndexSetStride != 2) || (IndexSetStart % 2 == 0),
-      "Some for-loops may be incorrectly initialized");
-  assert((IndexSetStride != 2) || (IndexSetSize % 2 == 1),
-      "For-loops that iterate over IndexSet with stride 2 may be wrong");
+  assert(IndexSetStart != 0, "IndexSetStart not initialized");
+  assert(IndexSetStride != 0, "IndexSetStride not initialized");
 }
 #endif
 
diff -r 2040997cba56 -r bd568544be7f src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Fri Jun 01 15:24:08 2012 -0700
@@ -952,9 +952,18 @@
         }
         should_try_gc = false;
       } else {
-        // Read the GC count while still holding the Heap_lock.
-        gc_count_before = total_collections();
-        should_try_gc = true;
+        // The GCLocker may not be active but the GCLocker initiated
+        // GC may not yet have been performed (GCLocker::needs_gc()
+        // returns true). In this case we do not try this GC and
+        // wait until the GCLocker initiated GC is performed, and
+        // then retry the allocation.
+        if (GC_locker::needs_gc()) {
+          should_try_gc = false;
+        } else {
+          // Read the GC count while still holding the Heap_lock.
+          gc_count_before = total_collections();
+          should_try_gc = true;
+        }
       }
     }
 
@@ -975,6 +984,9 @@
         return NULL;
       }
     } else {
+      // The GCLocker is either active or the GCLocker initiated
+      // GC has not yet been performed. Stall until it is and
+      // then retry the allocation.
       GC_locker::stall_until_clear();
     }
 
@@ -1054,9 +1066,18 @@
       if (GC_locker::is_active_and_needs_gc()) {
         should_try_gc = false;
       } else {
-        // Read the GC count while still holding the Heap_lock.
-        gc_count_before = total_collections();
-        should_try_gc = true;
+         // The GCLocker may not be active but the GCLocker initiated
+        // GC may not yet have been performed (GCLocker::needs_gc()
+        // returns true). In this case we do not try this GC and
+        // wait until the GCLocker initiated GC is performed, and
+        // then retry the allocation.
+        if (GC_locker::needs_gc()) {
+          should_try_gc = false;
+        } else {
+          // Read the GC count while still holding the Heap_lock.
+          gc_count_before = total_collections();
+          should_try_gc = true;
+        }
       }
     }
 
@@ -1081,6 +1102,9 @@
         return NULL;
       }
     } else {
+      // The GCLocker is either active or the GCLocker initiated
+      // GC has not yet been performed. Stall until it is and
+      // then retry the allocation.
       GC_locker::stall_until_clear();
     }
 
@@ -3906,12 +3930,6 @@
 
       gc_epilogue(false);
     }
-
-    if (ExitAfterGCNum > 0 && total_collections() == ExitAfterGCNum) {
-      gclog_or_tty->print_cr("Stopping after GC #%d", ExitAfterGCNum);
-      print_tracing_info();
-      vm_exit(-1);
-    }
   }
 
   // The closing of the inner scope, immediately above, will complete
diff -r 2040997cba56 -r bd568544be7f src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp
--- a/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp	Fri Jun 01 15:24:08 2012 -0700
@@ -133,12 +133,7 @@
                         ? ParallelGCThreads : 1),
 
   _recent_gc_times_ms(new TruncatedSeq(NumPrevPausesForHeuristics)),
-  _all_pause_times_ms(new NumberSeq()),
   _stop_world_start(0.0),
-  _all_stop_world_times_ms(new NumberSeq()),
-  _all_yield_times_ms(new NumberSeq()),
-
-  _summary(new Summary()),
 
   _cur_clear_ct_time_ms(0.0),
   _root_region_scan_wait_time_ms(0.0),
@@ -154,12 +149,6 @@
   _num_cc_clears(0L),
 #endif
 
-  _aux_num(10),
-  _all_aux_times_ms(new NumberSeq[_aux_num]),
-  _cur_aux_start_times_ms(new double[_aux_num]),
-  _cur_aux_times_ms(new double[_aux_num]),
-  _cur_aux_times_set(new bool[_aux_num]),
-
   _concurrent_mark_remark_times_ms(new TruncatedSeq(NumPrevPausesForHeuristics)),
   _concurrent_mark_cleanup_times_ms(new TruncatedSeq(NumPrevPausesForHeuristics)),
 
@@ -185,8 +174,6 @@
   _pause_time_target_ms((double) MaxGCPauseMillis),
 
   _gcs_are_young(true),
-  _young_pause_num(0),
-  _mixed_pause_num(0),
 
   _during_marking(false),
   _in_marking_window(false),
@@ -197,8 +184,6 @@
 
   _recent_avg_pause_time_ratio(0.0),
 
-  _all_full_gc_times_ms(new NumberSeq()),
-
   _initiate_conc_mark_if_possible(false),
   _during_initial_mark_pause(false),
   _last_young_gc(false),
@@ -851,7 +836,7 @@
   double full_gc_time_sec = end_sec - _cur_collection_start_sec;
   double full_gc_time_ms = full_gc_time_sec * 1000.0;
 
-  _all_full_gc_times_ms->add(full_gc_time_ms);
+  _trace_gen1_time_data.record_full_collection(full_gc_time_ms);
 
   update_recent_gc_times(end_sec, full_gc_time_ms);
 
@@ -900,7 +885,7 @@
                  _g1->used(), _g1->recalculate_used()));
 
   double s_w_t_ms = (start_time_sec - _stop_world_start) * 1000.0;
-  _all_stop_world_times_ms->add(s_w_t_ms);
+  _trace_gen0_time_data.record_start_collection(s_w_t_ms);
   _stop_world_start = 0.0;
 
   _cur_collection_start_sec = start_time_sec;
@@ -937,11 +922,6 @@
   }
 #endif
 
-  for (int i = 0; i < _aux_num; ++i) {
-    _cur_aux_times_ms[i] = 0.0;
-    _cur_aux_times_set[i] = false;
-  }
-
   // This is initialized to zero here and is set during the evacuation
   // pause if we actually waited for the root region scanning to finish.
   _root_region_scan_wait_time_ms = 0.0;
@@ -990,7 +970,7 @@
 void G1CollectorPolicy::record_concurrent_pause() {
   if (_stop_world_start > 0.0) {
     double yield_ms = (os::elapsedTime() - _stop_world_start) * 1000.0;
-    _all_yield_times_ms->add(yield_ms);
+    _trace_gen0_time_data.record_yield_time(yield_ms);
   }
 }
 
@@ -1197,21 +1177,6 @@
   _mmu_tracker->add_pause(end_time_sec - elapsed_ms/1000.0,
                           end_time_sec, false);
 
-  // This assert is exempted when we're doing parallel collection pauses,
-  // because the fragmentation caused by the parallel GC allocation buffers
-  // can lead to more memory being used during collection than was used
-  // before. Best leave this out until the fragmentation problem is fixed.
-  // Pauses in which evacuation failed can also lead to negative
-  // collections, since no space is reclaimed from a region containing an
-  // object whose evacuation failed.
-  // Further, we're now always doing parallel collection.  But I'm still
-  // leaving this here as a placeholder for a more precise assertion later.
-  // (DLD, 10/05.)
-  assert((true || parallel) // Always using GC LABs now.
-         || _g1->evacuation_failed()
-         || _cur_collection_pause_used_at_start_bytes >= cur_used_bytes,
-         "Negative collection");
-
   size_t freed_bytes =
     _cur_collection_pause_used_at_start_bytes - cur_used_bytes;
   size_t surviving_bytes = _collection_set_bytes_used_before - freed_bytes;
@@ -1259,44 +1224,15 @@
   other_time_ms -= _cur_clear_ct_time_ms;
 
   // TraceGen0Time and TraceGen1Time summary info updating.
-  _all_pause_times_ms->add(elapsed_ms);
 
   if (update_stats) {
-    _summary->record_total_time_ms(elapsed_ms);
-    _summary->record_other_time_ms(other_time_ms);
-
-    MainBodySummary* body_summary = _summary->main_body_summary();
-    assert(body_summary != NULL, "should not be null!");
-
-    body_summary->record_root_region_scan_wait_time_ms(
-                                               _root_region_scan_wait_time_ms);
-    body_summary->record_ext_root_scan_time_ms(ext_root_scan_time);
-    body_summary->record_satb_filtering_time_ms(satb_filtering_time);
-    body_summary->record_update_rs_time_ms(update_rs_time);
-    body_summary->record_scan_rs_time_ms(scan_rs_time);
-    body_summary->record_obj_copy_time_ms(obj_copy_time);
-
-    if (parallel) {
-      body_summary->record_parallel_time_ms(_cur_collection_par_time_ms);
-      body_summary->record_termination_time_ms(termination_time);
+    double parallel_known_time = known_time + termination_time;
+    double parallel_other_time = _cur_collection_par_time_ms - parallel_known_time;
 
-      double parallel_known_time = known_time + termination_time;
-      double parallel_other_time = _cur_collection_par_time_ms - parallel_known_time;
-      body_summary->record_parallel_other_time_ms(parallel_other_time);
-    }
-
-    body_summary->record_clear_ct_time_ms(_cur_clear_ct_time_ms);
-
-    // We exempt parallel collection from this check because Alloc Buffer
-    // fragmentation can produce negative collections.  Same with evac
-    // failure.
-    // Further, we're now always doing parallel collection.  But I'm still
-    // leaving this here as a placeholder for a more precise assertion later.
-    // (DLD, 10/05.
-    assert((true || parallel)
-           || _g1->evacuation_failed()
-           || surviving_bytes <= _collection_set_bytes_used_before,
-           "Or else negative collection!");
+    _trace_gen0_time_data.record_end_collection(
+      elapsed_ms, other_time_ms, _root_region_scan_wait_time_ms, _cur_collection_par_time_ms,
+      ext_root_scan_time, satb_filtering_time, update_rs_time, scan_rs_time, obj_copy_time,
+      termination_time, parallel_other_time, _cur_clear_ct_time_ms);
 
     // this is where we update the allocation rate of the application
     double app_time_ms =
@@ -1349,12 +1285,6 @@
     }
   }
 
-  for (int i = 0; i < _aux_num; ++i) {
-    if (_cur_aux_times_set[i]) {
-      _all_aux_times_ms[i].add(_cur_aux_times_ms[i]);
-    }
-  }
-
   if (G1Log::finer()) {
     bool print_marking_info =
       _g1->mark_in_progress() && !last_pause_included_initial_mark;
@@ -1436,14 +1366,6 @@
     print_stats(2, "Free CSet",
                    (_recorded_young_free_cset_time_ms +
                     _recorded_non_young_free_cset_time_ms));
-
-    for (int i = 0; i < _aux_num; ++i) {
-      if (_cur_aux_times_set[i]) {
-        char buffer[96];
-        sprintf(buffer, "Aux%d", i);
-        print_stats(1, buffer, _cur_aux_times_ms[i]);
-      }
-    }
   }
 
   bool new_in_marking_window = _in_marking_window;
@@ -1808,179 +1730,9 @@
   _g1->collection_set_iterate(&cs_closure);
 }
 
-void G1CollectorPolicy::print_summary(int level,
-                                      const char* str,
-                                      NumberSeq* seq) const {
-  double sum = seq->sum();
-  LineBuffer(level + 1).append_and_print_cr("%-24s = %8.2lf s (avg = %8.2lf ms)",
-                str, sum / 1000.0, seq->avg());
-}
-
-void G1CollectorPolicy::print_summary_sd(int level,
-                                         const char* str,
-                                         NumberSeq* seq) const {
-  print_summary(level, str, seq);
-  LineBuffer(level + 6).append_and_print_cr("(num = %5d, std dev = %8.2lf ms, max = %8.2lf ms)",
-                seq->num(), seq->sd(), seq->maximum());
-}
-
-void G1CollectorPolicy::check_other_times(int level,
-                                        NumberSeq* other_times_ms,
-                                        NumberSeq* calc_other_times_ms) const {
-  bool should_print = false;
-  LineBuffer buf(level + 2);
-
-  double max_sum = MAX2(fabs(other_times_ms->sum()),
-                        fabs(calc_other_times_ms->sum()));
-  double min_sum = MIN2(fabs(other_times_ms->sum()),
-                        fabs(calc_other_times_ms->sum()));
-  double sum_ratio = max_sum / min_sum;
-  if (sum_ratio > 1.1) {
-    should_print = true;
-    buf.append_and_print_cr("## CALCULATED OTHER SUM DOESN'T MATCH RECORDED ###");
-  }
-
-  double max_avg = MAX2(fabs(other_times_ms->avg()),
-                        fabs(calc_other_times_ms->avg()));
-  double min_avg = MIN2(fabs(other_times_ms->avg()),
-                        fabs(calc_other_times_ms->avg()));
-  double avg_ratio = max_avg / min_avg;
-  if (avg_ratio > 1.1) {
-    should_print = true;
-    buf.append_and_print_cr("## CALCULATED OTHER AVG DOESN'T MATCH RECORDED ###");
-  }
-
-  if (other_times_ms->sum() < -0.01) {
-    buf.append_and_print_cr("## RECORDED OTHER SUM IS NEGATIVE ###");
-  }
-
-  if (other_times_ms->avg() < -0.01) {
-    buf.append_and_print_cr("## RECORDED OTHER AVG IS NEGATIVE ###");
-  }
-
-  if (calc_other_times_ms->sum() < -0.01) {
-    should_print = true;
-    buf.append_and_print_cr("## CALCULATED OTHER SUM IS NEGATIVE ###");
-  }
-
-  if (calc_other_times_ms->avg() < -0.01) {
-    should_print = true;
-    buf.append_and_print_cr("## CALCULATED OTHER AVG IS NEGATIVE ###");
-  }
-
-  if (should_print)
-    print_summary(level, "Other(Calc)", calc_other_times_ms);
-}
-
-void G1CollectorPolicy::print_summary(PauseSummary* summary) const {
-  bool parallel = G1CollectedHeap::use_parallel_gc_threads();
-  MainBodySummary*    body_summary = summary->main_body_summary();
-  if (summary->get_total_seq()->num() > 0) {
-    print_summary_sd(0, "Evacuation Pauses", summary->get_total_seq());
-    if (body_summary != NULL) {
-      print_summary(1, "Root Region Scan Wait", body_summary->get_root_region_scan_wait_seq());
-      if (parallel) {
-        print_summary(1, "Parallel Time", body_summary->get_parallel_seq());
-        print_summary(2, "Ext Root Scanning", body_summary->get_ext_root_scan_seq());
-        print_summary(2, "SATB Filtering", body_summary->get_satb_filtering_seq());
-        print_summary(2, "Update RS", body_summary->get_update_rs_seq());
-        print_summary(2, "Scan RS", body_summary->get_scan_rs_seq());
-        print_summary(2, "Object Copy", body_summary->get_obj_copy_seq());
-        print_summary(2, "Termination", body_summary->get_termination_seq());
-        print_summary(2, "Parallel Other", body_summary->get_parallel_other_seq());
-        {
-          NumberSeq* other_parts[] = {
-            body_summary->get_ext_root_scan_seq(),
-            body_summary->get_satb_filtering_seq(),
-            body_summary->get_update_rs_seq(),
-            body_summary->get_scan_rs_seq(),
-            body_summary->get_obj_copy_seq(),
-            body_summary->get_termination_seq()
-          };
-          NumberSeq calc_other_times_ms(body_summary->get_parallel_seq(),
-                                        6, other_parts);
-          check_other_times(2, body_summary->get_parallel_other_seq(),
-                            &calc_other_times_ms);
-        }
-      } else {
-        print_summary(1, "Ext Root Scanning", body_summary->get_ext_root_scan_seq());
-        print_summary(1, "SATB Filtering", body_summary->get_satb_filtering_seq());
-        print_summary(1, "Update RS", body_summary->get_update_rs_seq());
-        print_summary(1, "Scan RS", body_summary->get_scan_rs_seq());
-        print_summary(1, "Object Copy", body_summary->get_obj_copy_seq());
-      }
-    }
-    print_summary(1, "Clear CT", body_summary->get_clear_ct_seq());
-    print_summary(1, "Other", summary->get_other_seq());
-    {
-      if (body_summary != NULL) {
-        NumberSeq calc_other_times_ms;
-        if (parallel) {
-          // parallel
-          NumberSeq* other_parts[] = {
-            body_summary->get_root_region_scan_wait_seq(),
-            body_summary->get_parallel_seq(),
-            body_summary->get_clear_ct_seq()
-          };
-          calc_other_times_ms = NumberSeq(summary->get_total_seq(),
-                                          3, other_parts);
-        } else {
-          // serial
-          NumberSeq* other_parts[] = {
-            body_summary->get_root_region_scan_wait_seq(),
-            body_summary->get_update_rs_seq(),
-            body_summary->get_ext_root_scan_seq(),
-            body_summary->get_satb_filtering_seq(),
-            body_summary->get_scan_rs_seq(),
-            body_summary->get_obj_copy_seq()
-          };
-          calc_other_times_ms = NumberSeq(summary->get_total_seq(),
-                                          6, other_parts);
-        }
-        check_other_times(1,  summary->get_other_seq(), &calc_other_times_ms);
-      }
-    }
-  } else {
-    LineBuffer(1).append_and_print_cr("none");
-  }
-  LineBuffer(0).append_and_print_cr("");
-}
-
 void G1CollectorPolicy::print_tracing_info() const {
-  if (TraceGen0Time) {
-    gclog_or_tty->print_cr("ALL PAUSES");
-    print_summary_sd(0, "Total", _all_pause_times_ms);
-    gclog_or_tty->print_cr("");
-    gclog_or_tty->print_cr("");
-    gclog_or_tty->print_cr("   Young GC Pauses: %8d", _young_pause_num);
-    gclog_or_tty->print_cr("   Mixed GC Pauses: %8d", _mixed_pause_num);
-    gclog_or_tty->print_cr("");
-
-    gclog_or_tty->print_cr("EVACUATION PAUSES");
-    print_summary(_summary);
-
-    gclog_or_tty->print_cr("MISC");
-    print_summary_sd(0, "Stop World", _all_stop_world_times_ms);
-    print_summary_sd(0, "Yields", _all_yield_times_ms);
-    for (int i = 0; i < _aux_num; ++i) {
-      if (_all_aux_times_ms[i].num() > 0) {
-        char buffer[96];
-        sprintf(buffer, "Aux%d", i);
-        print_summary_sd(0, buffer, &_all_aux_times_ms[i]);
-      }
-    }
-  }
-  if (TraceGen1Time) {
-    if (_all_full_gc_times_ms->num() > 0) {
-      gclog_or_tty->print("\n%4d full_gcs: total time = %8.2f s",
-                 _all_full_gc_times_ms->num(),
-                 _all_full_gc_times_ms->sum() / 1000.0);
-      gclog_or_tty->print_cr(" (avg = %8.2fms).", _all_full_gc_times_ms->avg());
-      gclog_or_tty->print_cr("                     [std. dev = %8.2f ms, max = %8.2f ms]",
-                    _all_full_gc_times_ms->sd(),
-                    _all_full_gc_times_ms->maximum());
-    }
-  }
+  _trace_gen0_time_data.print();
+  _trace_gen1_time_data.print();
 }
 
 void G1CollectorPolicy::print_yg_surv_rate_info() const {
@@ -2531,9 +2283,9 @@
   _last_gc_was_young = gcs_are_young() ? true : false;
 
   if (_last_gc_was_young) {
-    ++_young_pause_num;
+    _trace_gen0_time_data.increment_young_collection_count();
   } else {
-    ++_mixed_pause_num;
+    _trace_gen0_time_data.increment_mixed_collection_count();
   }
 
   // The young list is laid with the survivor regions from the previous
@@ -2690,3 +2442,133 @@
   _recorded_non_young_cset_choice_time_ms =
     (non_young_end_time_sec - non_young_start_time_sec) * 1000.0;
 }
+
+void TraceGen0TimeData::record_start_collection(double time_to_stop_the_world_ms) {
+  if(TraceGen0Time) {
+    _all_stop_world_times_ms.add(time_to_stop_the_world_ms);
+  }
+}
+
+void TraceGen0TimeData::record_yield_time(double yield_time_ms) {
+  if(TraceGen0Time) {
+    _all_yield_times_ms.add(yield_time_ms);
+  }
+}
+
+void TraceGen0TimeData::record_end_collection(
+     double total_ms,
+     double other_ms,
+     double root_region_scan_wait_ms,
+     double parallel_ms,
+     double ext_root_scan_ms,
+     double satb_filtering_ms,
+     double update_rs_ms,
+     double scan_rs_ms,
+     double obj_copy_ms,
+     double termination_ms,
+     double parallel_other_ms,
+     double clear_ct_ms)
+{
+  if(TraceGen0Time) {
+    _total.add(total_ms);
+    _other.add(other_ms);
+    _root_region_scan_wait.add(root_region_scan_wait_ms);
+    _parallel.add(parallel_ms);
+    _ext_root_scan.add(ext_root_scan_ms);
+    _satb_filtering.add(satb_filtering_ms);
+    _update_rs.add(update_rs_ms);
+    _scan_rs.add(scan_rs_ms);
+    _obj_copy.add(obj_copy_ms);
+    _termination.add(termination_ms);
+    _parallel_other.add(parallel_other_ms);
+    _clear_ct.add(clear_ct_ms);
+  }
+}
+
+void TraceGen0TimeData::increment_young_collection_count() {
+  if(TraceGen0Time) {
+    ++_young_pause_num;
+  }
+}
+
+void TraceGen0TimeData::increment_mixed_collection_count() {
+  if(TraceGen0Time) {
+    ++_mixed_pause_num;
+  }
+}
+
+void TraceGen0TimeData::print_summary(int level,
+                                      const char* str,
+                                      const NumberSeq* seq) const {
+  double sum = seq->sum();
+  LineBuffer(level + 1).append_and_print_cr("%-24s = %8.2lf s (avg = %8.2lf ms)",
+                str, sum / 1000.0, seq->avg());
+}
+
+void TraceGen0TimeData::print_summary_sd(int level,
+                                         const char* str,
+                                         const NumberSeq* seq) const {
+  print_summary(level, str, seq);
+  LineBuffer(level + 6).append_and_print_cr("(num = %5d, std dev = %8.2lf ms, max = %8.2lf ms)",
+                seq->num(), seq->sd(), seq->maximum());
+}
+
+void TraceGen0TimeData::print() const {
+  if (!TraceGen0Time) {
+    return;
+  }
+
+  gclog_or_tty->print_cr("ALL PAUSES");
+  print_summary_sd(0, "Total", &_total);
+  gclog_or_tty->print_cr("");
+  gclog_or_tty->print_cr("");
+  gclog_or_tty->print_cr("   Young GC Pauses: %8d", _young_pause_num);
+  gclog_or_tty->print_cr("   Mixed GC Pauses: %8d", _mixed_pause_num);
+  gclog_or_tty->print_cr("");
+
+  gclog_or_tty->print_cr("EVACUATION PAUSES");
+
+  if (_young_pause_num == 0 && _mixed_pause_num == 0) {
+    gclog_or_tty->print_cr("none");
+  } else {
+    print_summary_sd(0, "Evacuation Pauses", &_total);
+    print_summary(1, "Root Region Scan Wait", &_root_region_scan_wait);
+    print_summary(1, "Parallel Time", &_parallel);
+    print_summary(2, "Ext Root Scanning", &_ext_root_scan);
+    print_summary(2, "SATB Filtering", &_satb_filtering);
+    print_summary(2, "Update RS", &_update_rs);
+    print_summary(2, "Scan RS", &_scan_rs);
+    print_summary(2, "Object Copy", &_obj_copy);
+    print_summary(2, "Termination", &_termination);
+    print_summary(2, "Parallel Other", &_parallel_other);
+    print_summary(1, "Clear CT", &_clear_ct);
+    print_summary(1, "Other", &_other);
+  }
+  gclog_or_tty->print_cr("");
+
+  gclog_or_tty->print_cr("MISC");
+  print_summary_sd(0, "Stop World", &_all_stop_world_times_ms);
+  print_summary_sd(0, "Yields", &_all_yield_times_ms);
+}
+
+void TraceGen1TimeData::record_full_collection(double full_gc_time_ms) {
+  if (TraceGen1Time) {
+    _all_full_gc_times.add(full_gc_time_ms);
+  }
+}
+
+void TraceGen1TimeData::print() const {
+  if (!TraceGen1Time) {
+    return;
+  }
+
+  if (_all_full_gc_times.num() > 0) {
+    gclog_or_tty->print("\n%4d full_gcs: total time = %8.2f s",
+      _all_full_gc_times.num(),
+      _all_full_gc_times.sum() / 1000.0);
+    gclog_or_tty->print_cr(" (avg = %8.2fms).", _all_full_gc_times.avg());
+    gclog_or_tty->print_cr("                     [std. dev = %8.2f ms, max = %8.2f ms]",
+      _all_full_gc_times.sd(),
+      _all_full_gc_times.maximum());
+  }
+}
diff -r 2040997cba56 -r bd568544be7f src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp
--- a/src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -37,49 +37,62 @@
 class HeapRegion;
 class CollectionSetChooser;
 
-// Yes, this is a bit unpleasant... but it saves replicating the same thing
-// over and over again and introducing subtle problems through small typos and
-// cutting and pasting mistakes. The macros below introduces a number
-// sequnce into the following two classes and the methods that access it.
+// TraceGen0Time collects data on _both_ young and mixed evacuation pauses
+// (the latter may contain non-young regions - i.e. regions that are
+// technically in Gen1) while TraceGen1Time collects data about full GCs.
+class TraceGen0TimeData : public CHeapObj {
+ private:
+  unsigned  _young_pause_num;
+  unsigned  _mixed_pause_num;
+
+  NumberSeq _all_stop_world_times_ms;
+  NumberSeq _all_yield_times_ms;
 
-#define define_num_seq(name)                                                  \
-private:                                                                      \
-  NumberSeq _all_##name##_times_ms;                                           \
-public:                                                                       \
-  void record_##name##_time_ms(double ms) {                                   \
-    _all_##name##_times_ms.add(ms);                                           \
-  }                                                                           \
-  NumberSeq* get_##name##_seq() {                                             \
-    return &_all_##name##_times_ms;                                           \
-  }
+  NumberSeq _total;
+  NumberSeq _other;
+  NumberSeq _root_region_scan_wait;
+  NumberSeq _parallel;
+  NumberSeq _ext_root_scan;
+  NumberSeq _satb_filtering;
+  NumberSeq _update_rs;
+  NumberSeq _scan_rs;
+  NumberSeq _obj_copy;
+  NumberSeq _termination;
+  NumberSeq _parallel_other;
+  NumberSeq _clear_ct;
 
-class MainBodySummary;
-
-class PauseSummary: public CHeapObj {
-  define_num_seq(total)
-    define_num_seq(other)
+  void print_summary (int level, const char* str, const NumberSeq* seq) const;
+  void print_summary_sd (int level, const char* str, const NumberSeq* seq) const;
 
 public:
-  virtual MainBodySummary*    main_body_summary()    { return NULL; }
+   TraceGen0TimeData() : _young_pause_num(0), _mixed_pause_num(0) {};
+  void record_start_collection(double time_to_stop_the_world_ms);
+  void record_yield_time(double yield_time_ms);
+  void record_end_collection(
+     double total_ms,
+     double other_ms,
+     double root_region_scan_wait_ms,
+     double parallel_ms,
+     double ext_root_scan_ms,
+     double satb_filtering_ms,
+     double update_rs_ms,
+     double scan_rs_ms,
+     double obj_copy_ms,
+     double termination_ms,
+     double parallel_other_ms,
+     double clear_ct_ms);
+  void increment_young_collection_count();
+  void increment_mixed_collection_count();
+  void print() const;
 };
 
-class MainBodySummary: public CHeapObj {
-  define_num_seq(root_region_scan_wait)
-  define_num_seq(parallel) // parallel only
-    define_num_seq(ext_root_scan)
-    define_num_seq(satb_filtering)
-    define_num_seq(update_rs)
-    define_num_seq(scan_rs)
-    define_num_seq(obj_copy)
-    define_num_seq(termination) // parallel only
-    define_num_seq(parallel_other) // parallel only
-  define_num_seq(clear_ct)
-};
+class TraceGen1TimeData : public CHeapObj {
+ private:
+  NumberSeq _all_full_gc_times;
 
-class Summary: public PauseSummary,
-               public MainBodySummary {
-public:
-  virtual MainBodySummary*    main_body_summary()    { return this; }
+ public:
+  void record_full_collection(double full_gc_time_ms);
+  void print() const;
 };
 
 // There are three command line options related to the young gen size:
@@ -199,19 +212,10 @@
   TruncatedSeq* _concurrent_mark_remark_times_ms;
   TruncatedSeq* _concurrent_mark_cleanup_times_ms;
 
-  Summary*           _summary;
+  TraceGen0TimeData _trace_gen0_time_data;
+  TraceGen1TimeData _trace_gen1_time_data;
 
-  NumberSeq* _all_pause_times_ms;
-  NumberSeq* _all_full_gc_times_ms;
   double _stop_world_start;
-  NumberSeq* _all_stop_world_times_ms;
-  NumberSeq* _all_yield_times_ms;
-
-  int        _aux_num;
-  NumberSeq* _all_aux_times_ms;
-  double*    _cur_aux_start_times_ms;
-  double*    _cur_aux_times_ms;
-  bool*      _cur_aux_times_set;
 
   double* _par_last_gc_worker_start_times_ms;
   double* _par_last_ext_root_scan_times_ms;
@@ -243,9 +247,6 @@
 
   bool                  _last_gc_was_young;
 
-  unsigned              _young_pause_num;
-  unsigned              _mixed_pause_num;
-
   bool                  _during_marking;
   bool                  _in_marking_window;
   bool                  _in_marking_window_im;
@@ -557,15 +558,6 @@
 
   void print_par_stats(int level, const char* str, double* data, bool showDecimals = true);
 
-  void check_other_times(int level,
-                         NumberSeq* other_times_ms,
-                         NumberSeq* calc_other_times_ms) const;
-
-  void print_summary (PauseSummary* stats) const;
-
-  void print_summary (int level, const char* str, NumberSeq* seq) const;
-  void print_summary_sd (int level, const char* str, NumberSeq* seq) const;
-
   double avg_value (double* data);
   double max_value (double* data);
   double sum_of_values (double* data);
@@ -745,10 +737,6 @@
     return _bytes_in_collection_set_before_gc;
   }
 
-  unsigned calc_gc_alloc_time_stamp() {
-    return _all_pause_times_ms->num() + 1;
-  }
-
   // This should be called after the heap is resized.
   void record_new_heap_size(uint new_number_of_regions);
 
@@ -867,18 +855,6 @@
     _cur_collection_code_root_fixup_time_ms = ms;
   }
 
-  void record_aux_start_time(int i) {
-    guarantee(i < _aux_num, "should be within range");
-    _cur_aux_start_times_ms[i] = os::elapsedTime() * 1000.0;
-  }
-
-  void record_aux_end_time(int i) {
-    guarantee(i < _aux_num, "should be within range");
-    double ms = os::elapsedTime() * 1000.0 - _cur_aux_start_times_ms[i];
-    _cur_aux_times_set[i] = true;
-    _cur_aux_times_ms[i] += ms;
-  }
-
   void record_ref_proc_time(double ms) {
     _cur_ref_proc_time_ms = ms;
   }
diff -r 2040997cba56 -r bd568544be7f src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp
--- a/src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp	Fri Jun 01 15:24:08 2012 -0700
@@ -1106,7 +1106,8 @@
 void HeapRegionRemSet::setup_remset_size() {
   // Setup sparse and fine-grain tables sizes.
   // table_size = base * (log(region_size / 1M) + 1)
-  int region_size_log_mb = MAX2((int)HeapRegion::LogOfHRGrainBytes - (int)LOG_M, 0);
+  const int LOG_M = 20;
+  int region_size_log_mb = MAX2(HeapRegion::LogOfHRGrainBytes - LOG_M, 0);
   if (FLAG_IS_DEFAULT(G1RSetSparseRegionEntries)) {
     G1RSetSparseRegionEntries = G1RSetSparseRegionEntriesBase * (region_size_log_mb + 1);
   }
diff -r 2040997cba56 -r bd568544be7f src/share/vm/memory/genCollectedHeap.cpp
--- a/src/share/vm/memory/genCollectedHeap.cpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/memory/genCollectedHeap.cpp	Fri Jun 01 15:24:08 2012 -0700
@@ -677,11 +677,6 @@
 #ifdef TRACESPINNING
   ParallelTaskTerminator::print_termination_counts();
 #endif
-
-  if (ExitAfterGCNum > 0 && total_collections() == ExitAfterGCNum) {
-    tty->print_cr("Stopping after GC #%d", ExitAfterGCNum);
-    vm_exit(-1);
-  }
 }
 
 HeapWord* GenCollectedHeap::satisfy_failed_allocation(size_t size, bool is_tlab) {
diff -r 2040997cba56 -r bd568544be7f src/share/vm/oops/fieldInfo.hpp
--- a/src/share/vm/oops/fieldInfo.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/oops/fieldInfo.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -50,8 +50,7 @@
     initval_index_offset     = 3,
     low_offset               = 4,
     high_offset              = 5,
-    generic_signature_offset = 6,
-    field_slots              = 7
+    field_slots              = 6
   };
 
  private:
@@ -60,29 +59,28 @@
   void set_name_index(u2 val)                    { _shorts[name_index_offset] = val;         }
   void set_signature_index(u2 val)               { _shorts[signature_index_offset] = val;    }
   void set_initval_index(u2 val)                 { _shorts[initval_index_offset] = val;      }
-  void set_generic_signature_index(u2 val)       { _shorts[generic_signature_offset] = val;  }
 
   u2 name_index() const                          { return _shorts[name_index_offset];        }
   u2 signature_index() const                     { return _shorts[signature_index_offset];   }
   u2 initval_index() const                       { return _shorts[initval_index_offset];     }
-  u2 generic_signature_index() const             { return _shorts[generic_signature_offset]; }
 
  public:
   static FieldInfo* from_field_array(typeArrayOop fields, int index) {
     return ((FieldInfo*)fields->short_at_addr(index * field_slots));
   }
+  static FieldInfo* from_field_array(u2* fields, int index) {
+    return ((FieldInfo*)(fields + index * field_slots));
+  }
 
   void initialize(u2 access_flags,
                   u2 name_index,
                   u2 signature_index,
                   u2 initval_index,
-                  u2 generic_signature_index,
                   u4 offset) {
     _shorts[access_flags_offset] = access_flags;
     _shorts[name_index_offset] = name_index;
     _shorts[signature_index_offset] = signature_index;
     _shorts[initval_index_offset] = initval_index;
-    _shorts[generic_signature_offset] = generic_signature_index;
     set_offset(offset);
   }
 
@@ -105,14 +103,6 @@
     return cp->symbol_at(index);
   }
 
-  Symbol* generic_signature(constantPoolHandle cp) const {
-    int index = generic_signature_index();
-    if (index == 0) {
-      return NULL;
-    }
-    return cp->symbol_at(index);
-  }
-
   void set_access_flags(u2 val)                  { _shorts[access_flags_offset] = val;             }
   void set_offset(u4 val)                        {
     _shorts[low_offset] = extract_low_short_from_int(val);
diff -r 2040997cba56 -r bd568544be7f src/share/vm/oops/fieldStreams.hpp
--- a/src/share/vm/oops/fieldStreams.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/oops/fieldStreams.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -42,21 +42,57 @@
   constantPoolHandle  _constants;
   int                 _index;
   int                 _limit;
+  int                 _generic_signature_slot;
 
   FieldInfo* field() const { return FieldInfo::from_field_array(_fields(), _index); }
 
+  int init_generic_signature_start_slot() {
+    int length = _fields->length();
+    int num_fields = 0;
+    int skipped_generic_signature_slots = 0;
+    FieldInfo* fi;
+    AccessFlags flags;
+    /* Scan from 0 to the current _index. Count the number of generic
+       signature slots for field[0] to field[_index - 1]. */
+    for (int i = 0; i < _index; i++) {
+      fi = FieldInfo::from_field_array(_fields(), i);
+      flags.set_flags(fi->access_flags());
+      if (flags.field_has_generic_signature()) {
+        length --;
+        skipped_generic_signature_slots ++;
+      }
+    }
+    /* Scan from the current _index. */
+    for (int i = _index; i*FieldInfo::field_slots < length; i++) {
+      fi = FieldInfo::from_field_array(_fields(), i);
+      flags.set_flags(fi->access_flags());
+      if (flags.field_has_generic_signature()) {
+        length --;
+      }
+      num_fields ++;
+    }
+    _generic_signature_slot = length + skipped_generic_signature_slots;
+    assert(_generic_signature_slot <= _fields->length(), "");
+    return num_fields;
+  }
+
   FieldStreamBase(typeArrayHandle fields, constantPoolHandle constants, int start, int limit) {
     _fields = fields;
     _constants = constants;
     _index = start;
-    _limit = limit;
+    int num_fields = init_generic_signature_start_slot();
+    if (limit < start) {
+      _limit = num_fields;
+    } else {
+      _limit = limit;
+    }
   }
 
   FieldStreamBase(typeArrayHandle fields, constantPoolHandle constants) {
     _fields = fields;
     _constants = constants;
     _index = 0;
-    _limit = fields->length() / FieldInfo::field_slots;
+    _limit = init_generic_signature_start_slot();
   }
 
  public:
@@ -65,18 +101,26 @@
     _constants = klass->constants();
     _index = 0;
     _limit = klass->java_fields_count();
+    init_generic_signature_start_slot();
   }
   FieldStreamBase(instanceKlassHandle klass) {
     _fields = klass->fields();
     _constants = klass->constants();
     _index = 0;
     _limit = klass->java_fields_count();
+    init_generic_signature_start_slot();
   }
 
   // accessors
   int index() const                 { return _index; }
 
-  void next() { _index += 1; }
+  void next() {
+    if (access_flags().field_has_generic_signature()) {
+      _generic_signature_slot ++;
+      assert(_generic_signature_slot <= _fields->length(), "");
+    }
+    _index += 1;
+  }
   bool done() const { return _index >= _limit; }
 
   // Accessors for current field
@@ -103,7 +147,13 @@
   }
 
   Symbol* generic_signature() const {
-    return field()->generic_signature(_constants);
+    if (access_flags().field_has_generic_signature()) {
+      assert(_generic_signature_slot < _fields->length(), "out of bounds");
+      int index = _fields->short_at(_generic_signature_slot);
+      return _constants->symbol_at(index);
+    } else {
+      return NULL;
+    }
   }
 
   int offset() const {
@@ -139,11 +189,19 @@
   }
   int generic_signature_index() const {
     assert(!field()->is_internal(), "regular only");
-    return field()->generic_signature_index();
+    if (access_flags().field_has_generic_signature()) {
+      assert(_generic_signature_slot < _fields->length(), "out of bounds");
+      return _fields->short_at(_generic_signature_slot);
+    } else {
+      return 0;
+    }
   }
   void set_generic_signature_index(int index) {
     assert(!field()->is_internal(), "regular only");
-    field()->set_generic_signature_index(index);
+    if (access_flags().field_has_generic_signature()) {
+      assert(_generic_signature_slot < _fields->length(), "out of bounds");
+      _fields->short_at_put(_generic_signature_slot, index);
+    }
   }
   int initval_index() const {
     assert(!field()->is_internal(), "regular only");
@@ -159,8 +217,8 @@
 // Iterate over only the internal fields
 class InternalFieldStream : public FieldStreamBase {
  public:
-  InternalFieldStream(instanceKlass* k):      FieldStreamBase(k->fields(), k->constants(), k->java_fields_count(), k->all_fields_count()) {}
-  InternalFieldStream(instanceKlassHandle k): FieldStreamBase(k->fields(), k->constants(), k->java_fields_count(), k->all_fields_count()) {}
+  InternalFieldStream(instanceKlass* k):      FieldStreamBase(k->fields(), k->constants(), k->java_fields_count(), 0) {}
+  InternalFieldStream(instanceKlassHandle k): FieldStreamBase(k->fields(), k->constants(), k->java_fields_count(), 0) {}
 };
 
 
diff -r 2040997cba56 -r bd568544be7f src/share/vm/oops/instanceKlass.hpp
--- a/src/share/vm/oops/instanceKlass.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/oops/instanceKlass.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -168,8 +168,19 @@
   objArrayOop     _local_interfaces;
   // Interface (klassOops) this class implements transitively.
   objArrayOop     _transitive_interfaces;
-  // Instance and static variable information, 5-tuples of shorts [access, name
-  // index, sig index, initval index, offset].
+  // Instance and static variable information, starts with 6-tuples of shorts
+  // [access, name index, sig index, initval index, low_offset, high_offset]
+  // for all fields, followed by the generic signature data at the end of
+  // the array. Only fields with generic signature attributes have the generic
+  // signature data set in the array. The fields array looks like following:
+  //
+  // f1: [access, name index, sig index, initial value index, low_offset, high_offset]
+  // f2: [access, name index, sig index, initial value index, low_offset, high_offset]
+  //      ...
+  // fn: [access, name index, sig index, initial value index, low_offset, high_offset]
+  //     [generic signature index]
+  //     [generic signature index]
+  //     ...
   typeArrayOop    _fields;
   // Constant pool for this class.
   constantPoolOop _constants;
@@ -351,9 +362,6 @@
   // Number of Java declared fields
   int java_fields_count() const           { return (int)_java_fields_count; }
 
-  // Number of fields including any injected fields
-  int all_fields_count() const            { return _fields->length() / FieldInfo::field_slots; }
-
   typeArrayOop fields() const              { return _fields; }
 
   void set_fields(typeArrayOop f, u2 java_fields_count) {
diff -r 2040997cba56 -r bd568544be7f src/share/vm/oops/instanceRefKlass.cpp
--- a/src/share/vm/oops/instanceRefKlass.cpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/oops/instanceRefKlass.cpp	Fri Jun 01 15:24:08 2012 -0700
@@ -515,6 +515,12 @@
 void instanceRefKlass::acquire_pending_list_lock(BasicLock *pending_list_basic_lock) {
   // we may enter this with pending exception set
   PRESERVE_EXCEPTION_MARK;  // exceptions are never thrown, needed for TRAPS argument
+
+  // Create a HandleMark in case we retry a GC multiple times.
+  // Each time we attempt the GC, we allocate the handle below
+  // to hold the pending list lock. We want to free this handle.
+  HandleMark hm;
+
   Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock());
   ObjectSynchronizer::fast_enter(h_lock, pending_list_basic_lock, false, THREAD);
   assert(ObjectSynchronizer::current_thread_holds_lock(
@@ -527,7 +533,12 @@
   BasicLock *pending_list_basic_lock) {
   // we may enter this with pending exception set
   PRESERVE_EXCEPTION_MARK;  // exceptions are never thrown, needed for TRAPS argument
-  //
+
+  // Create a HandleMark in case we retry a GC multiple times.
+  // Each time we attempt the GC, we allocate the handle below
+  // to hold the pending list lock. We want to free this handle.
+  HandleMark hm;
+
   Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock());
   assert(ObjectSynchronizer::current_thread_holds_lock(
            JavaThread::current(), h_lock),
diff -r 2040997cba56 -r bd568544be7f src/share/vm/runtime/fieldDescriptor.cpp
--- a/src/share/vm/runtime/fieldDescriptor.cpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/runtime/fieldDescriptor.cpp	Fri Jun 01 15:24:08 2012 -0700
@@ -28,6 +28,7 @@
 #include "memory/resourceArea.hpp"
 #include "memory/universe.inline.hpp"
 #include "oops/instanceKlass.hpp"
+#include "oops/fieldStreams.hpp"
 #include "runtime/fieldDescriptor.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/signature.hpp"
@@ -37,6 +38,20 @@
   return instanceKlass::cast(_cp->pool_holder())->class_loader();
 }
 
+Symbol* fieldDescriptor::generic_signature() const {
+  int idx = 0;
+  instanceKlass* ik = instanceKlass::cast(field_holder());
+  for (AllFieldStream fs(ik); !fs.done(); fs.next()) {
+    if (idx == _index) {
+      return fs.generic_signature();
+    } else {
+      idx ++;
+    }
+  }
+  assert(false, "should never happen");
+  return NULL;
+}
+
 typeArrayOop fieldDescriptor::annotations() const {
   instanceKlass* ik = instanceKlass::cast(field_holder());
   objArrayOop md = ik->fields_annotations();
diff -r 2040997cba56 -r bd568544be7f src/share/vm/runtime/fieldDescriptor.hpp
--- a/src/share/vm/runtime/fieldDescriptor.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/runtime/fieldDescriptor.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -67,7 +67,7 @@
   oop loader() const;
   // Offset (in words) of field from start of instanceOop / klassOop
   int offset() const                   { return field()->offset(); }
-  Symbol* generic_signature() const    { return field()->generic_signature(_cp); }
+  Symbol* generic_signature() const;
   int index() const                    { return _index; }
   typeArrayOop annotations() const;
 
diff -r 2040997cba56 -r bd568544be7f src/share/vm/runtime/globals.hpp
--- a/src/share/vm/runtime/globals.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/runtime/globals.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -3285,9 +3285,6 @@
   diagnostic(intx, VerifyGCLevel,     0,                                    \
           "Generation level at which to start +VerifyBefore/AfterGC")       \
                                                                             \
-  develop(uintx, ExitAfterGCNum,   0,                                       \
-          "If non-zero, exit after this GC.")                               \
-                                                                            \
   product(intx, MaxTenuringThreshold,    15,                                \
           "Maximum value for tenuring threshold")                           \
                                                                             \
diff -r 2040997cba56 -r bd568544be7f src/share/vm/runtime/osThread.hpp
--- a/src/share/vm/runtime/osThread.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/runtime/osThread.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -61,7 +61,6 @@
 class OSThread: public CHeapObj {
   friend class VMStructs;
  private:
-  //void* _start_proc;            // Thread start routine
   OSThreadStartFunc _start_proc;  // Thread start routine
   void* _start_parm;              // Thread start routine parameter
   volatile ThreadState _state;    // Thread state *hint*
@@ -77,10 +76,7 @@
   void set_state(ThreadState state)                { _state = state; }
   ThreadState get_state()                          { return _state; }
 
-  // Constructor
   OSThread(OSThreadStartFunc start_proc, void* start_parm);
-
-  // Destructor
   ~OSThread();
 
   // Accessors
@@ -98,7 +94,6 @@
 
   // For java intrinsics:
   static ByteSize interrupted_offset()            { return byte_offset_of(OSThread, _interrupted); }
-  static ByteSize thread_id_offset()              { return byte_offset_of(OSThread, _thread_id); }
 
   // Platform dependent stuff
 #ifdef TARGET_OS_FAMILY_linux
@@ -114,6 +109,19 @@
 # include "osThread_bsd.hpp"
 #endif
 
+ public:
+  static ByteSize thread_id_offset()              { return byte_offset_of(OSThread, _thread_id); }
+  static size_t thread_id_size()                  { return sizeof(thread_id_t); }
+
+  thread_id_t thread_id() const                   { return _thread_id; }
+
+  void set_thread_id(thread_id_t id)              { _thread_id = id; }
+
+ private:
+  // _thread_id is kernel thread id (similar to LWP id on Solaris). Each
+  // thread has a unique thread_id (BsdThreads or NPTL). It can be used
+  // to access /proc.
+  thread_id_t _thread_id;
 };
 
 
diff -r 2040997cba56 -r bd568544be7f src/share/vm/runtime/vmStructs.cpp
--- a/src/share/vm/runtime/vmStructs.cpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/runtime/vmStructs.cpp	Fri Jun 01 15:24:08 2012 -0700
@@ -2352,7 +2352,6 @@
   declare_constant(FieldInfo::initval_index_offset)                       \
   declare_constant(FieldInfo::low_offset)                                 \
   declare_constant(FieldInfo::high_offset)                                \
-  declare_constant(FieldInfo::generic_signature_offset)                   \
   declare_constant(FieldInfo::field_slots)                                \
                                                                           \
   /************************************************/                      \
diff -r 2040997cba56 -r bd568544be7f src/share/vm/utilities/accessFlags.hpp
--- a/src/share/vm/utilities/accessFlags.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/utilities/accessFlags.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -80,10 +80,12 @@
   JVM_ACC_FIELD_ACCESS_WATCHED       = 0x00002000,  // field access is watched by JVMTI
   JVM_ACC_FIELD_MODIFICATION_WATCHED = 0x00008000,  // field modification is watched by JVMTI
   JVM_ACC_FIELD_INTERNAL             = 0x00000400,  // internal field, same as JVM_ACC_ABSTRACT
+  JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE = 0x00000800, // field has generic signature
 
   JVM_ACC_FIELD_INTERNAL_FLAGS       = JVM_ACC_FIELD_ACCESS_WATCHED |
                                        JVM_ACC_FIELD_MODIFICATION_WATCHED |
-                                       JVM_ACC_FIELD_INTERNAL,
+                                       JVM_ACC_FIELD_INTERNAL |
+                                       JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE,
 
                                                     // flags accepted by set_field_flags()
   JVM_ACC_FIELD_FLAGS                = JVM_RECOGNIZED_FIELD_MODIFIERS | JVM_ACC_FIELD_INTERNAL_FLAGS
@@ -156,6 +158,8 @@
   bool is_field_modification_watched() const
                                         { return (_flags & JVM_ACC_FIELD_MODIFICATION_WATCHED) != 0; }
   bool is_internal() const              { return (_flags & JVM_ACC_FIELD_INTERNAL) != 0; }
+  bool field_has_generic_signature() const
+                                        { return (_flags & JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE) != 0; }
 
   // get .class file flags
   jint get_flags               () const { return (_flags & JVM_ACC_WRITTEN_FLAGS); }
@@ -225,6 +229,10 @@
                                            atomic_clear_bits(JVM_ACC_FIELD_MODIFICATION_WATCHED);
                                          }
                                        }
+  void set_field_has_generic_signature()
+                                       {
+                                         atomic_set_bits(JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE);
+                                       }
 
   // Conversion
   jshort as_short() const              { return (jshort)_flags; }
diff -r 2040997cba56 -r bd568544be7f src/share/vm/utilities/globalDefinitions.hpp
--- a/src/share/vm/utilities/globalDefinitions.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/utilities/globalDefinitions.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -161,10 +161,6 @@
 const size_t G                  = M*K;
 const size_t HWperKB            = K / sizeof(HeapWord);
 
-const size_t LOG_K              = 10;
-const size_t LOG_M              = 2 * LOG_K;
-const size_t LOG_G              = 2 * LOG_M;
-
 const jint min_jint = (jint)1 << (sizeof(jint)*BitsPerByte-1); // 0x80000000 == smallest jint
 const jint max_jint = (juint)min_jint - 1;                     // 0x7FFFFFFF == largest jint
 
diff -r 2040997cba56 -r bd568544be7f src/share/vm/utilities/numberSeq.cpp
--- a/src/share/vm/utilities/numberSeq.cpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/utilities/numberSeq.cpp	Fri Jun 01 15:24:08 2012 -0700
@@ -115,24 +115,6 @@
   return true;
 }
 
-NumberSeq::NumberSeq(NumberSeq *total, int n, NumberSeq **parts) {
-  guarantee(check_nums(total, n, parts), "all seq lengths should match");
-  double sum = total->sum();
-  for (int i = 0; i < n; ++i) {
-    if (parts[i] != NULL)
-      sum -= parts[i]->sum();
-  }
-
-  _num = total->num();
-  _sum = sum;
-
-  // we do not calculate these...
-  _sum_of_squares = -1.0;
-  _maximum = -1.0;
-  _davg = -1.0;
-  _dvariance = -1.0;
-}
-
 void NumberSeq::add(double val) {
   AbsSeq::add(val);
 
diff -r 2040997cba56 -r bd568544be7f src/share/vm/utilities/numberSeq.hpp
--- a/src/share/vm/utilities/numberSeq.hpp	Fri Jun 01 14:12:10 2012 -0700
+++ b/src/share/vm/utilities/numberSeq.hpp	Fri Jun 01 15:24:08 2012 -0700
@@ -93,7 +93,6 @@
 
 public:
   NumberSeq(double alpha = DEFAULT_ALPHA_VALUE);
-  NumberSeq(NumberSeq* total, int n_parts, NumberSeq** parts);
 
   virtual void add(double val);
   virtual double maximum() const { return _maximum; }
diff -r 2040997cba56 -r bd568544be7f test/gc/7168848/HumongousAlloc.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/gc/7168848/HumongousAlloc.java	Fri Jun 01 15:24:08 2012 -0700
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2012, 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 Humongous.java
+ * @bug 7168848
+ * @summary G1: humongous object allocations should initiate marking cycles when necessary
+ * @run main/othervm -Xms100m -Xmx100m -XX:+PrintGC -XX:G1HeapRegionSize=1m -XX:+UseG1GC  HumongousAlloc
+ *
+ */
+import java.lang.management.GarbageCollectorMXBean;
+import java.lang.management.ManagementFactory;
+import java.util.List;
+
+public class HumongousAlloc {
+
+    public static byte[] dummy;
+    private static int sleepFreq = 40;
+    private static int sleepTime = 1000;
+    private static double size = 0.75;
+    private static int iterations = 50;
+    private static int MB = 1024 * 1024;
+
+    public static void allocate(int size, int sleepTime, int sleepFreq) throws InterruptedException {
+        System.out.println("Will allocate objects of size: " + size
+                + " bytes and sleep for " + sleepTime
+                + " ms after every " + sleepFreq + "th allocation.");
+        int count = 0;
+        while (count < iterations) {
+            for (int i = 0; i < sleepFreq; i++) {
+                dummy = new byte[size - 16];
+            }
+            Thread.sleep(sleepTime);
+            count++;
+        }
+    }
+
+    public static void main(String[] args) throws InterruptedException {
+        allocate((int) (size * MB), sleepTime, sleepFreq);
+        List<GarbageCollectorMXBean> collectors = ManagementFactory.getGarbageCollectorMXBeans();
+        for (GarbageCollectorMXBean collector : collectors) {
+            if (collector.getName().contains("G1 Old")) {
+               long count = collector.getCollectionCount();
+                if (count > 0) {
+                    throw new RuntimeException("Failed: FullGCs should not have happened. The number of FullGC run is " + count);
+                }
+                else {
+                    System.out.println("Passed.");
+                }
+            }
+        }
+    }
+}
+