# HG changeset patch
# User ctornqvi
# Date 1364113297 -3600
# Node ID 9c8e53c7bed0a7e5f516fc68a9709aa4de30803c
# Parent  c342fbdf8a707a2f99b203e76a721d55b82778f3# Parent  6574f999e0cfe6a4dd82a630c3cac3a89a26c6a2
Merge

diff -r c342fbdf8a70 -r 9c8e53c7bed0 .hgtags
--- a/.hgtags	Sun Mar 24 09:11:55 2013 +0100
+++ b/.hgtags	Sun Mar 24 09:21:37 2013 +0100
@@ -324,3 +324,5 @@
 dd6350b4abc4a6c19c89dd982cc0e4f3d119885c hs25-b22
 65b797426a3bec6e91b64085a0cfb94adadb634a jdk8-b81
 0631ebcc45f05c73b09a56c2586685af1f781c1d hs25-b23
+3db4ab0e12f437fe374817de346b2b0c6b4a5b31 jdk8-b82
+e3a41fc0234895eba4f272b984f7dacff495f8eb hs25-b24
diff -r c342fbdf8a70 -r 9c8e53c7bed0 agent/src/share/classes/sun/jvm/hotspot/oops/Oop.java
--- a/agent/src/share/classes/sun/jvm/hotspot/oops/Oop.java	Sun Mar 24 09:11:55 2013 +0100
+++ b/agent/src/share/classes/sun/jvm/hotspot/oops/Oop.java	Sun Mar 24 09:21:37 2013 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2013, 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
@@ -148,7 +148,7 @@
     if (doVMFields) {
       visitor.doCInt(mark, true);
       if (VM.getVM().isCompressedKlassPointersEnabled()) {
-        throw new InternalError("unimplemented");
+        visitor.doMetadata(compressedKlass, true);
       } else {
         visitor.doMetadata(klass, true);
       }
diff -r c342fbdf8a70 -r 9c8e53c7bed0 make/Makefile
--- a/make/Makefile	Sun Mar 24 09:11:55 2013 +0100
+++ b/make/Makefile	Sun Mar 24 09:21:37 2013 +0100
@@ -532,6 +532,39 @@
 	 $(TAR) -cf - *) | \
 	 ($(CD) $(JDK_IMAGE_DIR) && $(TAR) -xf -)
 
+
+# Testing the built JVM
+RUN_JVM=JAVA_HOME=$(JDK_IMPORT_PATH) $(JDK_IMPORT_PATH)/bin/java -d$(ARCH_DATA_MODEL) -Dsun.java.launcher=gamma
+generic_test:
+	@$(ECHO) "Running with: $(ALTJVM_DIR)"
+	@$(RUN_JVM) -XXaltjvm=$(ALTJVM_DIR) -Xinternalversion
+	@$(RUN_JVM) -XXaltjvm=$(ALTJVM_DIR) -showversion -help
+
+# C2 test targets
+test_product test_optimized test_fastdebug test_jvmg:
+	@$(MAKE) generic_test ALTJVM_DIR="$(C2_DIR)/$(@:test_%=%)"
+
+# C1 test targets
+test_product1 test_optimized1 test_fastdebug1 test_jvmg1:
+  ifeq ($(ARCH_DATA_MODEL), 32)
+	@$(MAKE) generic_test ALTJVM_DIR="$(C1_DIR)/$(@:test_%1=%)"
+  else
+	@$(ECHO) "No compiler1 ($(@:test_%=%)) for ARCH_DATA_MODEL=$(ARCH_DATA_MODEL)"
+  endif
+
+# Zero test targets
+test_productzero test_optimizedzero test_fastdebugzero test_jvmgzero:
+	@$(MAKE) generic_test ALTJVM_DIR="$(ZERO_DIR)/$(@:test_%zero=%)"
+
+# Shark test targets
+test_productshark test_optimizedshark test_fastdebugshark test_jvmgshark:
+	@$(MAKE) generic_test ALTJVM_DIR="$(SHARK_DIR)/$(@:test_%shark=%)"
+
+# Minimal1 test targets
+test_productminimal1 test_optimizedminimal1 test_fastdebugminimal1 test_jvmgminimal1:
+	@$(MAKE) generic_test ALTJVM_DIR="$(MINIMAL1_DIR)/$(@:test_%minimal1=%)"
+
+
 test_jdk:
   ifeq ($(JVM_VARIANT_CLIENT), true)
 	$(JDK_IMAGE_DIR)/bin/java -d$(ARCH_DATA_MODEL) -client -Xinternalversion
diff -r c342fbdf8a70 -r 9c8e53c7bed0 make/bsd/Makefile
--- a/make/bsd/Makefile	Sun Mar 24 09:11:55 2013 +0100
+++ b/make/bsd/Makefile	Sun Mar 24 09:21:37 2013 +0100
@@ -299,63 +299,42 @@
 
 $(TARGETS_C2):  $(SUBDIRS_C2)
 	cd $(OSNAME)_$(BUILDARCH)_compiler2/$@ && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(BUILDARCH)_compiler2/$@ && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(BUILDARCH)_compiler2/$@ && $(MAKE) $(MFLAGS) install
 endif
 
 $(TARGETS_TIERED):  $(SUBDIRS_TIERED)
 	cd $(OSNAME)_$(BUILDARCH)_tiered/$(patsubst %tiered,%,$@) && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(BUILDARCH)_tiered/$(patsubst %tiered,%,$@) && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(BUILDARCH)_tiered/$(patsubst %tiered,%,$@) && $(MAKE) $(MFLAGS) install
 endif
 
 $(TARGETS_C1):  $(SUBDIRS_C1)
 	cd $(OSNAME)_$(BUILDARCH)_compiler1/$(patsubst %1,%,$@) && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(BUILDARCH)_compiler1/$(patsubst %1,%,$@) && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(BUILDARCH)_compiler1/$(patsubst %1,%,$@) && $(MAKE) $(MFLAGS) install
 endif
 
 $(TARGETS_CORE):  $(SUBDIRS_CORE)
 	cd $(OSNAME)_$(BUILDARCH)_core/$(patsubst %core,%,$@) && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(BUILDARCH)_core/$(patsubst %core,%,$@) && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(BUILDARCH)_core/$(patsubst %core,%,$@) && $(MAKE) $(MFLAGS) install
 endif
 
 $(TARGETS_ZERO):  $(SUBDIRS_ZERO)
 	cd $(OSNAME)_$(VARIANTARCH)_zero/$(patsubst %zero,%,$@) && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(VARIANTARCH)_zero/$(patsubst %zero,%,$@) && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(VARIANTARCH)_zero/$(patsubst %zero,%,$@) && $(MAKE) $(MFLAGS) install
 endif
 
 $(TARGETS_SHARK):  $(SUBDIRS_SHARK)
 	cd $(OSNAME)_$(VARIANTARCH)_shark/$(patsubst %shark,%,$@) && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(VARIANTARCH)_shark/$(patsubst %shark,%,$@) && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(VARIANTARCH)_shark/$(patsubst %shark,%,$@) && $(MAKE) $(MFLAGS) install
 endif
 
 $(TARGETS_MINIMAL1):  $(SUBDIRS_MINIMAL1)
 	cd $(OSNAME)_$(BUILDARCH)_minimal1/$(patsubst %minimal1,%,$@) && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(BUILDARCH)_minimal1/$(patsubst %minimal1,%,$@) && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(BUILDARCH)_minimal1/$(patsubst %minimal1,%,$@) && $(MAKE) $(MFLAGS) install
 endif
diff -r c342fbdf8a70 -r 9c8e53c7bed0 make/bsd/makefiles/buildtree.make
--- a/make/bsd/makefiles/buildtree.make	Sun Mar 24 09:11:55 2013 +0100
+++ b/make/bsd/makefiles/buildtree.make	Sun Mar 24 09:21:37 2013 +0100
@@ -50,7 +50,6 @@
 # jvmti.make	- generate JVMTI bindings from the spec (JSR-163)
 # sa.make	- generate SA jar file and natives
 # env.[ck]sh	- environment settings
-# test_gamma	- script to run the Queens program
 # 
 # The makefiles are split this way so that "make foo" will run faster by not
 # having to read the dependency files for the vm.
@@ -67,9 +66,6 @@
 # 'gmake MAKE_VERBOSE=y' or 'gmake QUIETLY=' gives all the gory details.
 QUIETLY$(MAKE_VERBOSE)	= @
 
-# For now, until the compiler is less wobbly:
-TESTFLAGS	= -Xbatch -showversion
-
 ifeq ($(findstring true, $(JVM_VARIANT_ZERO) $(JVM_VARIANT_ZEROSHARK)), true)
   PLATFORM_FILE = $(shell dirname $(shell dirname $(shell pwd)))/platform_zero
 else
@@ -135,7 +131,7 @@
 # dtrace.make is used on BSD versions that implement Dtrace (like MacOS X)
 BUILDTREE_TARGETS = Makefile flags.make flags_vm.make vm.make adlc.make \
 	jvmti.make sa.make dtrace.make \
-        env.sh env.csh jdkpath.sh .dbxrc test_gamma
+        env.sh env.csh jdkpath.sh
 
 BUILDTREE_VARS	= GAMMADIR=$(GAMMADIR) OS_FAMILY=$(OS_FAMILY) \
 	SRCARCH=$(SRCARCH) BUILDARCH=$(BUILDARCH) LIBARCH=$(LIBARCH) VARIANT=$(VARIANT)
@@ -352,7 +348,7 @@
 	@echo Creating $@ ...
 	$(QUIETLY) ( \
 	$(BUILDTREE_COMMENT); \
-	[ -n "$$JAVA_HOME" ] && { echo ": \$${JAVA_HOME:=$${JAVA_HOME}}"; }; \
+	{ echo "JAVA_HOME=$(JDK_IMPORT_PATH)"; }; \
 	{ \
 	echo "CLASSPATH=$${CLASSPATH:+$$CLASSPATH:}.:\$${JAVA_HOME}/jre/lib/rt.jar:\$${JAVA_HOME}/jre/lib/i18n.jar"; \
 	} | sed s:$${JAVA_HOME:--------}:\$${JAVA_HOME}:g; \
@@ -364,8 +360,7 @@
 	@echo Creating $@ ...
 	$(QUIETLY) ( \
 	$(BUILDTREE_COMMENT); \
-	[ -n "$$JAVA_HOME" ] && \
-	{ echo "if (! \$$?JAVA_HOME) setenv JAVA_HOME \"$$JAVA_HOME\""; }; \
+	{ echo "setenv JAVA_HOME \"$(JDK_IMPORT_PATH)\""; }; \
 	sed -n 's/^\([A-Za-z_][A-Za-z0-9_]*\)=/setenv \1 /p' $?; \
 	) > $@
 
@@ -376,119 +371,6 @@
 	echo "JDK=${JAVA_HOME}"; \
 	) > $@	   
 
-.dbxrc:  $(BUILDTREE_MAKE)
-	@echo Creating $@ ...
-	$(QUIETLY) ( \
-	echo "echo '# Loading $(PLATFORM_DIR)/$(TARGET)/.dbxrc'"; \
-	echo "if [ -f \"\$${HOTSPOT_DBXWARE}\" ]"; \
-	echo "then"; \
-	echo "	source \"\$${HOTSPOT_DBXWARE}\""; \
-	echo "elif [ -f \"\$$HOME/.dbxrc\" ]"; \
-	echo "then"; \
-	echo "	source \"\$$HOME/.dbxrc\""; \
-	echo "fi"; \
-	) > $@
-
-# Skip the test for product builds (which only work when installed in a JDK), to
-# avoid exiting with an error and causing make to halt.
-NO_TEST_MSG	= \
-	echo "$@:  skipping the test--this build must be tested in a JDK."
-
-NO_JAVA_HOME_MSG	= \
-	echo "JAVA_HOME must be set to run this test."
-
-DATA_MODE = $(DATA_MODE/$(BUILDARCH))
-JAVA_FLAG = $(JAVA_FLAG/$(DATA_MODE))
-
-DATA_MODE/i486    = 32
-DATA_MODE/sparc   = 32
-DATA_MODE/sparcv9 = 64
-DATA_MODE/amd64   = 64
-DATA_MODE/ia64    = 64
-DATA_MODE/zero    = $(ARCH_DATA_MODEL)
-
-JAVA_FLAG/32 = -d32
-JAVA_FLAG/64 = -d64
-
-WRONG_DATA_MODE_MSG = \
-	echo "JAVA_HOME must point to a $(DATA_MODE)-bit OpenJDK."
-
-CROSS_COMPILING_MSG = \
-	echo "Cross compiling for ARCH $(CROSS_COMPILE_ARCH), skipping gamma run."
-
-test_gamma:  $(BUILDTREE_MAKE) $(GAMMADIR)/make/test/Queens.java
-	@echo Creating $@ ...
-	$(QUIETLY) ( \
-	echo "#!/bin/sh"; \
-	echo ""; \
-	$(BUILDTREE_COMMENT); \
-	echo ""; \
-	echo "# Include environment settings for gamma run"; \
-	echo ""; \
-	echo ". ./env.sh"; \
-	echo ""; \
-	echo "# Do not run gamma test for cross compiles"; \
-	echo ""; \
-	echo "if [ -n \"$(CROSS_COMPILE_ARCH)\" ]; then "; \
-	echo "  $(CROSS_COMPILING_MSG)"; \
-	echo "  exit 0"; \
-	echo "fi"; \
-	echo ""; \
-	echo "# Make sure JAVA_HOME is set as it is required for gamma"; \
-	echo ""; \
-	echo "if [ -z \"\$${JAVA_HOME}\" ]; then "; \
-	echo "  $(NO_JAVA_HOME_MSG)"; \
-	echo "  exit 0"; \
-	echo "fi"; \
-	echo ""; \
-	echo "# Check JAVA_HOME version to be used for the test"; \
-	echo ""; \
-	echo "\$${JAVA_HOME}/bin/java $(JAVA_FLAG) -fullversion > /dev/null 2>&1"; \
-	echo "if [ \$$? -ne 0 ]; then "; \
-	echo "  $(WRONG_DATA_MODE_MSG)"; \
-	echo "  exit 0"; \
-	echo "fi"; \
-	echo ""; \
-	echo "GAMMA_PROG=gamma"; \
-	echo ""; \
-	echo "if [ \"$(OS_VENDOR)\" = \"Darwin\" ]; then "; \
-	echo "  # Ensure architecture for gamma and JAVA_HOME is the same."; \
-	echo "  # NOTE: gamma assumes the OpenJDK directory layout."; \
-	echo ""; \
-	echo "  GAMMA_ARCH=\"\`file \$${GAMMA_PROG} | awk '{print \$$NF}'\`\""; \
-	echo "  JVM_LIB=\"\$${JAVA_HOME}/jre/lib/libjava.$(LIBRARY_SUFFIX)\""; \
-	echo "  if [ ! -f \$${JVM_LIB} ]; then"; \
-	echo "    JVM_LIB=\"\$${JAVA_HOME}/jre/lib/$${LIBARCH}/libjava.$(LIBRARY_SUFFIX)\""; \
-	echo "  fi"; \
-	echo "  if [ ! -f \$${JVM_LIB} ] || [ -z \"\`file \$${JVM_LIB} | grep \$${GAMMA_ARCH}\`\" ]; then "; \
-	echo "    $(WRONG_DATA_MODE_MSG)"; \
-	echo "    exit 0"; \
-	echo "  fi"; \
-	echo "fi"; \
-	echo ""; \
-	echo "# Compile Queens program for test"; \
-	echo ""; \
-	echo "rm -f Queens.class"; \
-	echo "\$${JAVA_HOME}/bin/javac -d . $(GAMMADIR)/make/test/Queens.java"; \
-	echo ""; \
-	echo "# Set library path solely for gamma launcher test run"; \
-	echo ""; \
-	echo "LD_LIBRARY_PATH=.:$${LD_LIBRARY_PATH:+$$LD_LIBRARY_PATH:}\$${JAVA_HOME}/jre/lib/${LIBARCH}/native_threads:\$${JAVA_HOME}/jre/lib/${LIBARCH}:${GCC_LIB}"; \
-	echo "export LD_LIBRARY_PATH"; \
-	echo "unset LD_LIBRARY_PATH_32"; \
-	echo "unset LD_LIBRARY_PATH_64"; \
-	echo ""; \
-	echo "if [ \"$(OS_VENDOR)\" = \"Darwin\" ]; then "; \
-	echo "  DYLD_LIBRARY_PATH=.:$${DYLD_LIBRARY_PATH:+$$DYLD_LIBRARY_PATH:}\$${JAVA_HOME}/jre/lib/native_threads:\$${JAVA_HOME}/jre/lib:$${DYLD_LIBRARY_PATH:+$$DYLD_LIBRARY_PATH:}\$${JAVA_HOME}/jre/lib/${LIBARCH}/native_threads:\$${JAVA_HOME}/jre/lib/${LIBARCH}:${GCC_LIB}"; \
-	echo "  export DYLD_LIBRARY_PATH"; \
-	echo "fi"; \
-	echo ""; \
-	echo "# Use the gamma launcher and JAVA_HOME to run the test"; \
-	echo ""; \
-	echo "./\$${GAMMA_PROG} $(TESTFLAGS) Queens < /dev/null"; \
-	) > $@
-	$(QUIETLY) chmod +x $@
-
 FORCE:
 
 .PHONY:  all FORCE
diff -r c342fbdf8a70 -r 9c8e53c7bed0 make/defs.make
--- a/make/defs.make	Sun Mar 24 09:11:55 2013 +0100
+++ b/make/defs.make	Sun Mar 24 09:21:37 2013 +0100
@@ -302,7 +302,7 @@
 endif
 
 # Required make macro settings for all platforms
-MAKE_ARGS += JAVA_HOME=$(ABS_BOOTDIR)
+MAKE_ARGS += BOOTDIR=$(ABS_BOOTDIR)
 MAKE_ARGS += OUTPUTDIR=$(ABS_OUTPUTDIR)
 MAKE_ARGS += GAMMADIR=$(ABS_GAMMADIR)
 MAKE_ARGS += MAKE_VERBOSE=$(MAKE_VERBOSE)
@@ -337,9 +337,6 @@
 EXPORT_LIST += $(EXPORT_INCLUDE_DIR)/$(JDK_INCLUDE_SUBDIR)/jni_md.h
 EXPORT_LIST += $(EXPORT_INCLUDE_DIR)/jmm.h
 
-# By default, run Queens test after building
-TEST_IN_BUILD ?= true
-
 ifndef JAVASE_EMBEDDED
 EXPORT_LIST += $(EXPORT_INCLUDE_DIR)/jfr.h
 endif
diff -r c342fbdf8a70 -r 9c8e53c7bed0 make/hotspot_version
--- a/make/hotspot_version	Sun Mar 24 09:11:55 2013 +0100
+++ b/make/hotspot_version	Sun Mar 24 09:21:37 2013 +0100
@@ -35,7 +35,7 @@
 
 HS_MAJOR_VER=25
 HS_MINOR_VER=0
-HS_BUILD_NUMBER=24
+HS_BUILD_NUMBER=25
 
 JDK_MAJOR_VER=1
 JDK_MINOR_VER=8
diff -r c342fbdf8a70 -r 9c8e53c7bed0 make/jprt.properties
--- a/make/jprt.properties	Sun Mar 24 09:11:55 2013 +0100
+++ b/make/jprt.properties	Sun Mar 24 09:21:37 2013 +0100
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2006, 2012, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2006, 2013, 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
@@ -97,15 +97,18 @@
 jprt.my.linux.ppcsflt.jdk7u8=${jprt.my.linux.ppcsflt.jdk7}
 jprt.my.linux.ppcsflt=${jprt.my.linux.ppcsflt.${jprt.tools.default.release}}
 
-jprt.my.linux.armvfp.jdk8=linux_armvfp_2.6
-jprt.my.linux.armvfp.jdk7=linux_armvfp_2.6
-jprt.my.linux.armvfp.jdk7u8=${jprt.my.linux.armvfp.jdk7}
-jprt.my.linux.armvfp=${jprt.my.linux.armvfp.${jprt.tools.default.release}}
+jprt.my.linux.armvfpsflt.jdk8=linux_armvfpsflt_2.6
+jprt.my.linux.armvfpsflt=${jprt.my.linux.armvfpsflt.${jprt.tools.default.release}}
+
+jprt.my.linux.armvfphflt.jdk8=linux_armvfphflt_2.6
+jprt.my.linux.armvfphflt=${jprt.my.linux.armvfphflt.${jprt.tools.default.release}}
 
-jprt.my.linux.armv6.jdk8=linux_armv6_2.6
-jprt.my.linux.armv6.jdk7=linux_armv6_2.6
-jprt.my.linux.armv6.jdk7u8=${jprt.my.linux.armv6.jdk7}
-jprt.my.linux.armv6=${jprt.my.linux.armv6.${jprt.tools.default.release}}
+# The ARM GP vfp-sflt build is not currently supported
+#jprt.my.linux.armvs.jdk8=linux_armvs_2.6
+#jprt.my.linux.armvs=${jprt.my.linux.armvs.${jprt.tools.default.release}}
+
+jprt.my.linux.armvh.jdk8=linux_armvh_2.6
+jprt.my.linux.armvh=${jprt.my.linux.armvh.${jprt.tools.default.release}}
 
 jprt.my.linux.armsflt.jdk8=linux_armsflt_2.6
 jprt.my.linux.armsflt.jdk7=linux_armsflt_2.6
@@ -139,7 +142,7 @@
     ${jprt.my.macosx.x64}-{product|fastdebug|debug}, \
     ${jprt.my.windows.i586}-{product|fastdebug|debug}, \
     ${jprt.my.windows.x64}-{product|fastdebug|debug}, \
-    ${jprt.my.linux.armv6}-{product|fastdebug}
+    ${jprt.my.linux.armvh}-{product|fastdebug}
 
 jprt.build.targets.open= \
     ${jprt.my.solaris.i586}-{productOpen}, \
@@ -151,7 +154,8 @@
     ${jprt.my.linux.ppc}-{productEmb|fastdebugEmb}, \
     ${jprt.my.linux.ppcv2}-{productEmb|fastdebugEmb}, \
     ${jprt.my.linux.ppcsflt}-{productEmb|fastdebugEmb}, \
-    ${jprt.my.linux.armvfp}-{productEmb|fastdebugEmb}, \
+    ${jprt.my.linux.armvfpsflt}-{productEmb|fastdebugEmb}, \
+    ${jprt.my.linux.armvfphflt}-{productEmb|fastdebugEmb}, \
     ${jprt.my.linux.armsflt}-{productEmb|fastdebugEmb}
 
 jprt.build.targets.all=${jprt.build.targets.standard}, \
diff -r c342fbdf8a70 -r 9c8e53c7bed0 make/linux/Makefile
--- a/make/linux/Makefile	Sun Mar 24 09:11:55 2013 +0100
+++ b/make/linux/Makefile	Sun Mar 24 09:21:37 2013 +0100
@@ -300,63 +300,42 @@
 
 $(TARGETS_C2):  $(SUBDIRS_C2)
 	cd $(OSNAME)_$(BUILDARCH)_compiler2/$@ && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(BUILDARCH)_compiler2/$@ && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(BUILDARCH)_compiler2/$@ && $(MAKE) $(MFLAGS) install
 endif
 
 $(TARGETS_TIERED):  $(SUBDIRS_TIERED)
 	cd $(OSNAME)_$(BUILDARCH)_tiered/$(patsubst %tiered,%,$@) && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(BUILDARCH)_tiered/$(patsubst %tiered,%,$@) && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(BUILDARCH)_tiered/$(patsubst %tiered,%,$@) && $(MAKE) $(MFLAGS) install
 endif
 
 $(TARGETS_C1):  $(SUBDIRS_C1)
 	cd $(OSNAME)_$(BUILDARCH)_compiler1/$(patsubst %1,%,$@) && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(BUILDARCH)_compiler1/$(patsubst %1,%,$@) && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(BUILDARCH)_compiler1/$(patsubst %1,%,$@) && $(MAKE) $(MFLAGS) install
 endif
 
 $(TARGETS_CORE):  $(SUBDIRS_CORE)
 	cd $(OSNAME)_$(BUILDARCH)_core/$(patsubst %core,%,$@) && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(BUILDARCH)_core/$(patsubst %core,%,$@) && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(BUILDARCH)_core/$(patsubst %core,%,$@) && $(MAKE) $(MFLAGS) install
 endif
 
 $(TARGETS_ZERO):  $(SUBDIRS_ZERO)
 	cd $(OSNAME)_$(VARIANTARCH)_zero/$(patsubst %zero,%,$@) && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(VARIANTARCH)_zero/$(patsubst %zero,%,$@) && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(VARIANTARCH)_zero/$(patsubst %zero,%,$@) && $(MAKE) $(MFLAGS) install
 endif
 
 $(TARGETS_SHARK):  $(SUBDIRS_SHARK)
 	cd $(OSNAME)_$(VARIANTARCH)_shark/$(patsubst %shark,%,$@) && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(VARIANTARCH)_shark/$(patsubst %shark,%,$@) && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(VARIANTARCH)_shark/$(patsubst %shark,%,$@) && $(MAKE) $(MFLAGS) install
 endif
 
 $(TARGETS_MINIMAL1):  $(SUBDIRS_MINIMAL1)
 	cd $(OSNAME)_$(BUILDARCH)_minimal1/$(patsubst %minimal1,%,$@) && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(BUILDARCH)_minimal1/$(patsubst %minimal1,%,$@) && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(BUILDARCH)_minimal1/$(patsubst %minimal1,%,$@) && $(MAKE) $(MFLAGS) install
 endif
diff -r c342fbdf8a70 -r 9c8e53c7bed0 make/linux/makefiles/buildtree.make
--- a/make/linux/makefiles/buildtree.make	Sun Mar 24 09:11:55 2013 +0100
+++ b/make/linux/makefiles/buildtree.make	Sun Mar 24 09:21:37 2013 +0100
@@ -50,7 +50,6 @@
 # jvmti.make	- generate JVMTI bindings from the spec (JSR-163)
 # sa.make	- generate SA jar file and natives
 # env.[ck]sh	- environment settings
-# test_gamma	- script to run the Queens program
 # 
 # The makefiles are split this way so that "make foo" will run faster by not
 # having to read the dependency files for the vm.
@@ -64,9 +63,6 @@
 # 'gmake MAKE_VERBOSE=y' or 'gmake QUIETLY=' gives all the gory details.
 QUIETLY$(MAKE_VERBOSE)	= @
 
-# For now, until the compiler is less wobbly:
-TESTFLAGS	= -Xbatch -showversion
-
 ifeq ($(findstring true, $(JVM_VARIANT_ZERO) $(JVM_VARIANT_ZEROSHARK)), true)
   PLATFORM_FILE = $(shell dirname $(shell dirname $(shell pwd)))/platform_zero
 else
@@ -128,7 +124,7 @@
 BUILDTREE_MAKE	= $(GAMMADIR)/make/$(OS_FAMILY)/makefiles/buildtree.make
 
 BUILDTREE_TARGETS = Makefile flags.make flags_vm.make vm.make adlc.make jvmti.make sa.make \
-        env.sh env.csh jdkpath.sh .dbxrc test_gamma
+        env.sh env.csh jdkpath.sh
 
 BUILDTREE_VARS	= GAMMADIR=$(GAMMADIR) OS_FAMILY=$(OS_FAMILY) \
 	SRCARCH=$(SRCARCH) BUILDARCH=$(BUILDARCH) LIBARCH=$(LIBARCH) VARIANT=$(VARIANT)
@@ -345,7 +341,7 @@
 	@echo Creating $@ ...
 	$(QUIETLY) ( \
 	$(BUILDTREE_COMMENT); \
-	[ -n "$$JAVA_HOME" ] && { echo ": \$${JAVA_HOME:=$${JAVA_HOME}}"; }; \
+	{ echo "JAVA_HOME=$(JDK_IMPORT_PATH)"; }; \
 	{ \
 	echo "CLASSPATH=$${CLASSPATH:+$$CLASSPATH:}.:\$${JAVA_HOME}/jre/lib/rt.jar:\$${JAVA_HOME}/jre/lib/i18n.jar"; \
 	} | sed s:$${JAVA_HOME:--------}:\$${JAVA_HOME}:g; \
@@ -357,8 +353,7 @@
 	@echo Creating $@ ...
 	$(QUIETLY) ( \
 	$(BUILDTREE_COMMENT); \
-	[ -n "$$JAVA_HOME" ] && \
-	{ echo "if (! \$$?JAVA_HOME) setenv JAVA_HOME \"$$JAVA_HOME\""; }; \
+	{ echo "setenv JAVA_HOME \"$(JDK_IMPORT_PATH)\""; }; \
 	sed -n 's/^\([A-Za-z_][A-Za-z0-9_]*\)=/setenv \1 /p' $?; \
 	) > $@
 
@@ -369,119 +364,6 @@
 	echo "JDK=${JAVA_HOME}"; \
 	) > $@	   
 
-.dbxrc:  $(BUILDTREE_MAKE)
-	@echo Creating $@ ...
-	$(QUIETLY) ( \
-	echo "echo '# Loading $(PLATFORM_DIR)/$(TARGET)/.dbxrc'"; \
-	echo "if [ -f \"\$${HOTSPOT_DBXWARE}\" ]"; \
-	echo "then"; \
-	echo "	source \"\$${HOTSPOT_DBXWARE}\""; \
-	echo "elif [ -f \"\$$HOME/.dbxrc\" ]"; \
-	echo "then"; \
-	echo "	source \"\$$HOME/.dbxrc\""; \
-	echo "fi"; \
-	) > $@
-
-# Skip the test for product builds (which only work when installed in a JDK), to
-# avoid exiting with an error and causing make to halt.
-NO_TEST_MSG	= \
-	echo "$@:  skipping the test--this build must be tested in a JDK."
-
-NO_JAVA_HOME_MSG	= \
-	echo "JAVA_HOME must be set to run this test."
-
-DATA_MODE = $(DATA_MODE/$(BUILDARCH))
-JAVA_FLAG = $(JAVA_FLAG/$(DATA_MODE))
-
-DATA_MODE/i486    = 32
-DATA_MODE/sparc   = 32
-DATA_MODE/sparcv9 = 64
-DATA_MODE/amd64   = 64
-DATA_MODE/ia64    = 64
-DATA_MODE/zero    = $(ARCH_DATA_MODEL)
-
-JAVA_FLAG/32 = -d32
-JAVA_FLAG/64 = -d64
-
-WRONG_DATA_MODE_MSG = \
-	echo "JAVA_HOME must point to a $(DATA_MODE)-bit OpenJDK."
-
-CROSS_COMPILING_MSG = \
-	echo "Cross compiling for ARCH $(CROSS_COMPILE_ARCH), skipping gamma run."
-
-test_gamma:  $(BUILDTREE_MAKE) $(GAMMADIR)/make/test/Queens.java
-	@echo Creating $@ ...
-	$(QUIETLY) ( \
-	echo "#!/bin/sh"; \
-	echo ""; \
-	$(BUILDTREE_COMMENT); \
-	echo ""; \
-	echo "# Include environment settings for gamma run"; \
-	echo ""; \
-	echo ". ./env.sh"; \
-	echo ""; \
-	echo "# Do not run gamma test for cross compiles"; \
-	echo ""; \
-	echo "if [ -n \"$(CROSS_COMPILE_ARCH)\" ]; then "; \
-	echo "  $(CROSS_COMPILING_MSG)"; \
-	echo "  exit 0"; \
-	echo "fi"; \
-	echo ""; \
-	echo "# Make sure JAVA_HOME is set as it is required for gamma"; \
-	echo ""; \
-	echo "if [ -z \"\$${JAVA_HOME}\" ]; then "; \
-	echo "  $(NO_JAVA_HOME_MSG)"; \
-	echo "  exit 0"; \
-	echo "fi"; \
-	echo ""; \
-	echo "# Check JAVA_HOME version to be used for the test"; \
-	echo ""; \
-	echo "\$${JAVA_HOME}/bin/java $(JAVA_FLAG) -fullversion > /dev/null 2>&1"; \
-	echo "if [ \$$? -ne 0 ]; then "; \
-	echo "  $(WRONG_DATA_MODE_MSG)"; \
-	echo "  exit 0"; \
-	echo "fi"; \
-	echo ""; \
-	echo "GAMMA_PROG=gamma"; \
-	echo ""; \
-	echo "if [ \"$(OS_VENDOR)\" = \"Darwin\" ]; then "; \
-	echo "  # Ensure architecture for gamma and JAVA_HOME is the same."; \
-	echo "  # NOTE: gamma assumes the OpenJDK directory layout."; \
-	echo ""; \
-	echo "  GAMMA_ARCH=\"\`file \$${GAMMA_PROG} | awk '{print \$$NF}'\`\""; \
-	echo "  JVM_LIB=\"\$${JAVA_HOME}/jre/lib/libjava.$(LIBRARY_SUFFIX)\""; \
-	echo "  if [ ! -f \$${JVM_LIB} ]; then"; \
-	echo "    JVM_LIB=\"\$${JAVA_HOME}/jre/lib/$${LIBARCH}/libjava.$(LIBRARY_SUFFIX)\""; \
-	echo "  fi"; \
-	echo "  if [ ! -f \$${JVM_LIB} ] || [ -z \"\`file \$${JVM_LIB} | grep \$${GAMMA_ARCH}\`\" ]; then "; \
-	echo "    $(WRONG_DATA_MODE_MSG)"; \
-	echo "    exit 0"; \
-	echo "  fi"; \
-	echo "fi"; \
-	echo ""; \
-	echo "# Compile Queens program for test"; \
-	echo ""; \
-	echo "rm -f Queens.class"; \
-	echo "\$${JAVA_HOME}/bin/javac -d . $(GAMMADIR)/make/test/Queens.java"; \
-	echo ""; \
-	echo "# Set library path solely for gamma launcher test run"; \
-	echo ""; \
-	echo "LD_LIBRARY_PATH=.:$${LD_LIBRARY_PATH:+$$LD_LIBRARY_PATH:}\$${JAVA_HOME}/jre/lib/${LIBARCH}/native_threads:\$${JAVA_HOME}/jre/lib/${LIBARCH}:${GCC_LIB}"; \
-	echo "export LD_LIBRARY_PATH"; \
-	echo "unset LD_LIBRARY_PATH_32"; \
-	echo "unset LD_LIBRARY_PATH_64"; \
-	echo ""; \
-	echo "if [ \"$(OS_VENDOR)\" = \"Darwin\" ]; then "; \
-	echo "  DYLD_LIBRARY_PATH=.:$${DYLD_LIBRARY_PATH:+$$DYLD_LIBRARY_PATH:}\$${JAVA_HOME}/jre/lib/native_threads:\$${JAVA_HOME}/jre/lib:$${DYLD_LIBRARY_PATH:+$$DYLD_LIBRARY_PATH:}\$${JAVA_HOME}/jre/lib/${LIBARCH}/native_threads:\$${JAVA_HOME}/jre/lib/${LIBARCH}:${GCC_LIB}"; \
-	echo "  export DYLD_LIBRARY_PATH"; \
-	echo "fi"; \
-	echo ""; \
-	echo "# Use the gamma launcher and JAVA_HOME to run the test"; \
-	echo ""; \
-	echo "./\$${GAMMA_PROG} $(TESTFLAGS) Queens < /dev/null"; \
-	) > $@
-	$(QUIETLY) chmod +x $@
-
 FORCE:
 
 .PHONY:  all FORCE
diff -r c342fbdf8a70 -r 9c8e53c7bed0 make/solaris/Makefile
--- a/make/solaris/Makefile	Sun Mar 24 09:11:55 2013 +0100
+++ b/make/solaris/Makefile	Sun Mar 24 09:21:37 2013 +0100
@@ -231,36 +231,24 @@
 
 $(TARGETS_C2):  $(SUBDIRS_C2)
 	cd $(OSNAME)_$(BUILDARCH)_compiler2/$@ && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(BUILDARCH)_compiler2/$@ && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(BUILDARCH)_compiler2/$@ && $(MAKE) $(MFLAGS) install
 endif
 
 $(TARGETS_TIERED):  $(SUBDIRS_TIERED)
 	cd $(OSNAME)_$(BUILDARCH)_tiered/$(patsubst %tiered,%,$@) && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(BUILDARCH)_tiered/$(patsubst %tiered,%,$@) && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(BUILDARCH)_tiered/$(patsubst %tiered,%,$@) && $(MAKE) $(MFLAGS) install
 endif
 
 $(TARGETS_C1):  $(SUBDIRS_C1)
 	cd $(OSNAME)_$(BUILDARCH)_compiler1/$(patsubst %1,%,$@) && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(BUILDARCH)_compiler1/$(patsubst %1,%,$@) && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(BUILDARCH)_compiler1/$(patsubst %1,%,$@) && $(MAKE) $(MFLAGS) install
 endif
 
 $(TARGETS_CORE):  $(SUBDIRS_CORE)
 	cd $(OSNAME)_$(BUILDARCH)_core/$(patsubst %core,%,$@) && $(MAKE) $(MFLAGS)
-ifeq ($(TEST_IN_BUILD),true)
-	cd $(OSNAME)_$(BUILDARCH)_core/$(patsubst %core,%,$@) && ./test_gamma
-endif
 ifdef INSTALL
 	cd $(OSNAME)_$(BUILDARCH)_core/$(patsubst %core,%,$@) && $(MAKE) $(MFLAGS) install
 endif
diff -r c342fbdf8a70 -r 9c8e53c7bed0 make/solaris/makefiles/buildtree.make
--- a/make/solaris/makefiles/buildtree.make	Sun Mar 24 09:11:55 2013 +0100
+++ b/make/solaris/makefiles/buildtree.make	Sun Mar 24 09:21:37 2013 +0100
@@ -50,21 +50,19 @@
 # jvmti.make	- generate JVMTI bindings from the spec (JSR-163)
 # sa.make	- generate SA jar file and natives
 # env.[ck]sh	- environment settings
-# test_gamma	- script to run the Queens program
 # 
 # The makefiles are split this way so that "make foo" will run faster by not
 # having to read the dependency files for the vm.
 
 -include $(SPEC)
 include $(GAMMADIR)/make/scm.make
+include $(GAMMADIR)/make/defs.make
 include $(GAMMADIR)/make/altsrc.make
 
+
 # 'gmake MAKE_VERBOSE=y' or 'gmake QUIETLY=' gives all the gory details.
 QUIETLY$(MAKE_VERBOSE)	= @
 
-# For now, until the compiler is less wobbly:
-TESTFLAGS	= -Xbatch -Xmx32m -showversion
-
 ### maye ARCH_XXX instead?
 ifdef USE_GCC
 PLATFORM_FILE	= $(GAMMADIR)/make/$(OS_FAMILY)/platform_$(BUILDARCH).gcc
@@ -119,7 +117,7 @@
 BUILDTREE_MAKE	= $(GAMMADIR)/make/$(OS_FAMILY)/makefiles/buildtree.make
 
 BUILDTREE_TARGETS = Makefile flags.make flags_vm.make vm.make adlc.make jvmti.make sa.make \
-        env.sh env.csh jdkpath.sh .dbxrc test_gamma
+        env.sh env.csh jdkpath.sh
 
 BUILDTREE_VARS	= GAMMADIR=$(GAMMADIR) OS_FAMILY=$(OS_FAMILY) \
 	ARCH=$(ARCH) BUILDARCH=$(BUILDARCH) LIBARCH=$(LIBARCH) VARIANT=$(VARIANT)
@@ -334,7 +332,7 @@
 	@echo Creating $@ ...
 	$(QUIETLY) ( \
 	$(BUILDTREE_COMMENT); \
-	[ -n "$$JAVA_HOME" ] && { echo ": \$${JAVA_HOME:=$${JAVA_HOME}}"; }; \
+	{ echo "JAVA_HOME=$(JDK_IMPORT_PATH)"; }; \
 	{ \
 	echo "CLASSPATH=$${CLASSPATH:+$$CLASSPATH:}.:\$${JAVA_HOME}/jre/lib/rt.jar:\$${JAVA_HOME}/jre/lib/i18n.jar"; \
 	} | sed s:$${JAVA_HOME:--------}:\$${JAVA_HOME}:g; \
@@ -346,8 +344,7 @@
 	@echo Creating $@ ...
 	$(QUIETLY) ( \
 	$(BUILDTREE_COMMENT); \
-	[ -n "$$JAVA_HOME" ] && \
-	{ echo "if (! \$$?JAVA_HOME) setenv JAVA_HOME \"$$JAVA_HOME\""; }; \
+	{ echo "setenv JAVA_HOME \"$(JDK_IMPORT_PATH)\""; }; \
 	sed -n 's/^\([A-Za-z_][A-Za-z0-9_]*\)=/setenv \1 /p' $?; \
 	) > $@
 
@@ -358,124 +355,6 @@
 	echo "JDK=${JAVA_HOME}"; \
 	) > $@	   
 
-.dbxrc:  $(BUILDTREE_MAKE)
-	@echo Creating $@ ...
-	$(QUIETLY) ( \
-	echo "echo '# Loading $(PLATFORM_DIR)/$(TARGET)/.dbxrc'"; \
-	echo "if [ -f \"\$${HOTSPOT_DBXWARE}\" ]"; \
-	echo "then"; \
-	echo "	source \"\$${HOTSPOT_DBXWARE}\""; \
-	echo "elif [ -f \"\$$HOME/.dbxrc\" ]"; \
-	echo "then"; \
-	echo "	source \"\$$HOME/.dbxrc\""; \
-	echo "fi"; \
-	) > $@
-
-# Skip the test for product builds (which only work when installed in a JDK), to
-# avoid exiting with an error and causing make to halt.
-NO_TEST_MSG	= \
-	echo "$@:  skipping the test--this build must be tested in a JDK."
-
-NO_JAVA_HOME_MSG	= \
-	echo "JAVA_HOME must be set to run this test."
-
-DATA_MODE = $(DATA_MODE/$(BUILDARCH))
-JAVA_FLAG = $(JAVA_FLAG/$(DATA_MODE))
-
-DATA_MODE/i486    = 32
-DATA_MODE/sparc   = 32
-DATA_MODE/sparcv9 = 64
-DATA_MODE/amd64   = 64
-DATA_MODE/ia64    = 64
-
-# This bit is needed to enable local rebuilds.
-# Unless the makefile itself sets LP64, any environmental
-# setting of LP64 will interfere with the build.
-LP64_SETTING/32 = LP64 = \#empty
-LP64_SETTING/64 = LP64 = 1
-
-JAVA_FLAG/32 = -d32
-JAVA_FLAG/64 = -d64
-
-WRONG_DATA_MODE_MSG = \
-	echo "JAVA_HOME must point to a $(DATA_MODE)-bit OpenJDK."
-
-CROSS_COMPILING_MSG = \
-	echo "Cross compiling for ARCH $(CROSS_COMPILE_ARCH), skipping gamma run."
-
-test_gamma:  $(BUILDTREE_MAKE) $(GAMMADIR)/make/test/Queens.java
-	@echo Creating $@ ...
-	$(QUIETLY) ( \
-	echo "#!/bin/sh"; \
-	echo ""; \
-	$(BUILDTREE_COMMENT); \
-	echo ""; \
-	echo "# Include environment settings for gamma run"; \
-	echo ""; \
-	echo ". ./env.sh"; \
-	echo ""; \
-	echo "# Do not run gamma test for cross compiles"; \
-	echo ""; \
-	echo "if [ -n \"$(CROSS_COMPILE_ARCH)\" ]; then "; \
-	echo "  $(CROSS_COMPILING_MSG)"; \
-	echo "  exit 0"; \
-	echo "fi"; \
-	echo ""; \
-	echo "# Make sure JAVA_HOME is set as it is required for gamma"; \
-	echo ""; \
-	echo "if [ -z \"\$${JAVA_HOME}\" ]; then "; \
-	echo "  $(NO_JAVA_HOME_MSG)"; \
-	echo "  exit 0"; \
-	echo "fi"; \
-	echo ""; \
-	echo "# Check JAVA_HOME version to be used for the test"; \
-	echo ""; \
-	echo "\$${JAVA_HOME}/bin/java $(JAVA_FLAG) -fullversion > /dev/null 2>&1"; \
-	echo "if [ \$$? -ne 0 ]; then "; \
-	echo "  $(WRONG_DATA_MODE_MSG)"; \
-	echo "  exit 0"; \
-	echo "fi"; \
-	echo ""; \
-	echo "GAMMA_PROG=gamma"; \
-	echo ""; \
-	echo "if [ \"$(OS_VENDOR)\" = \"Darwin\" ]; then "; \
-	echo "  # Ensure architecture for gamma and JAVA_HOME is the same."; \
-	echo "  # NOTE: gamma assumes the OpenJDK directory layout."; \
-	echo ""; \
-	echo "  GAMMA_ARCH=\"\`file \$${GAMMA_PROG} | awk '{print \$$NF}'\`\""; \
-	echo "  JVM_LIB=\"\$${JAVA_HOME}/jre/lib/libjava.$(LIBRARY_SUFFIX)\""; \
-	echo "  if [ ! -f \$${JVM_LIB} ]; then"; \
-	echo "    JVM_LIB=\"\$${JAVA_HOME}/jre/lib/$${LIBARCH}/libjava.$(LIBRARY_SUFFIX)\""; \
-	echo "  fi"; \
-	echo "  if [ ! -f \$${JVM_LIB} ] || [ -z \"\`file \$${JVM_LIB} | grep \$${GAMMA_ARCH}\`\" ]; then "; \
-	echo "    $(WRONG_DATA_MODE_MSG)"; \
-	echo "    exit 0"; \
-	echo "  fi"; \
-	echo "fi"; \
-	echo ""; \
-	echo "# Compile Queens program for test"; \
-	echo ""; \
-	echo "rm -f Queens.class"; \
-	echo "\$${JAVA_HOME}/bin/javac -d . $(GAMMADIR)/make/test/Queens.java"; \
-	echo ""; \
-	echo "# Set library path solely for gamma launcher test run"; \
-	echo ""; \
-	echo "LD_LIBRARY_PATH=.:$${LD_LIBRARY_PATH:+$$LD_LIBRARY_PATH:}\$${JAVA_HOME}/jre/lib/${LIBARCH}/native_threads:\$${JAVA_HOME}/jre/lib/${LIBARCH}:${GCC_LIB}"; \
-	echo "export LD_LIBRARY_PATH"; \
-	echo "unset LD_LIBRARY_PATH_32"; \
-	echo "unset LD_LIBRARY_PATH_64"; \
-	echo ""; \
-	echo "if [ \"$(OS_VENDOR)\" = \"Darwin\" ]; then "; \
-	echo "  DYLD_LIBRARY_PATH=.:$${DYLD_LIBRARY_PATH:+$$DYLD_LIBRARY_PATH:}\$${JAVA_HOME}/jre/lib/native_threads:\$${JAVA_HOME}/jre/lib:$${DYLD_LIBRARY_PATH:+$$DYLD_LIBRARY_PATH:}\$${JAVA_HOME}/jre/lib/${LIBARCH}/native_threads:\$${JAVA_HOME}/jre/lib/${LIBARCH}:${GCC_LIB}"; \
-	echo "  export DYLD_LIBRARY_PATH"; \
-	echo "fi"; \
-	echo ""; \
-	echo "# Use the gamma launcher and JAVA_HOME to run the test"; \
-	echo ""; \
-	echo "./\$${GAMMA_PROG} $(TESTFLAGS) Queens < /dev/null"; \
-	) > $@
-	$(QUIETLY) chmod +x $@
-
 FORCE:
 
 .PHONY:  all FORCE
diff -r c342fbdf8a70 -r 9c8e53c7bed0 make/test/Queens.java
--- a/make/test/Queens.java	Sun Mar 24 09:11:55 2013 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,86 +0,0 @@
-/*
- * Copyright (c) 2006, 2008, 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.
- *
- */
-
-import java.util.*;
-
-// Copyright 1996, Animorphic Systems
-// gri 28 Aug 92 / 15 Jan 93 / 8 Dec 95
-
-class Queens {
-
-  static void try_i(boolean a[], boolean b[], boolean c[], int x[], int i) {
-    int adj = 7;
-
-    for (int j = 1; j <= 8; j++) {
-      if (b[j] && a[i+j] && c[adj+i-j]) {
-        x[i] = j;
-        b[j] = false;
-        a[i+j] = false;
-        c[adj+i-j] = false;
-        if (i < 8) try_i(a, b, c, x, i+1);
-        else print(x);
-        b[j] = true;
-        a[i+j] = true;
-        c[adj+i-j] = true;
-      }
-    }
-  }
-
-  public static void main(String s[]) {
-    boolean a[] = new boolean[16+1];
-    boolean b[] = new boolean[ 8+1];
-    boolean c[] = new boolean[14+1];
-    int     x[] = new int[8+1];
-    int adj = 7;
-
-    for (int i = -7; i <= 16; i++) {
-      if (i >= 1 && i <= 8) b[i]     = true;
-      if (i >= 2)           a[i]     = true;
-      if (i <= 7)           c[adj+i] = true;
-    }
-
-    x[0] = 0; // solution counter
-
-    try_i(a, b, c, x, 1);
-  }
-
-  static void print(int x[]) {
-    // first correct solution: A1 B5 C8 D6 E3 F7 G2 H4
-
-    char LF = (char)0xA;
-    char CR = (char)0xD;
-
-    x[0]++;
-    if (x[0] < 10)
-        System.out.print(" ");
-    System.out.print(x[0] + ". ");
-    for (int i = 1; i <= 8; i++) {
-      char p = (char)('A' + i - 1);
-      System.out.print(p);
-      System.out.print (x[i] + " ");
-    }
-    System.out.println();
-  }
-
-};
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/cpu/sparc/vm/macroAssembler_sparc.cpp
--- a/src/cpu/sparc/vm/macroAssembler_sparc.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/cpu/sparc/vm/macroAssembler_sparc.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -1385,13 +1385,13 @@
   }
 #endif
 
-  int len = strlen(file) + strlen(msg) + 1 + 4;
-  sprintf(buffer, "%d", line);
-  len += strlen(buffer);
-  sprintf(buffer, " at offset %d ", offset());
-  len += strlen(buffer);
-  char * real_msg = new char[len];
-  sprintf(real_msg, "%s%s(%s:%d)", msg, buffer, file, line);
+  const char* real_msg = NULL;
+  {
+    ResourceMark rm;
+    stringStream ss;
+    ss.print("%s at offset %d (%s:%d)", msg, offset(), file, line);
+    real_msg = code_string(ss.as_string());
+  }
 
   // Call indirectly to solve generation ordering problem
   AddressLiteral a(StubRoutines::verify_oop_subroutine_entry_address());
@@ -1423,13 +1423,13 @@
   // plausibility check for oops
   if (!VerifyOops) return;
 
-  char buffer[64];
-  sprintf(buffer, "%d", line);
-  int len = strlen(file) + strlen(msg) + 1 + 4 + strlen(buffer);
-  sprintf(buffer, " at SP+%d ", addr.disp());
-  len += strlen(buffer);
-  char * real_msg = new char[len];
-  sprintf(real_msg, "%s at SP+%d (%s:%d)", msg, addr.disp(), file, line);
+  const char* real_msg = NULL;
+  {
+    ResourceMark rm;
+    stringStream ss;
+    ss.print("%s at SP+%d (%s:%d)", msg, addr.disp(), file, line);
+    real_msg = code_string(ss.as_string());
+  }
 
   // Call indirectly to solve generation ordering problem
   AddressLiteral a(StubRoutines::verify_oop_subroutine_entry_address());
@@ -1622,9 +1622,13 @@
   // in order to run automated test scripts on the VM
   // Use the flag ShowMessageBoxOnError
 
-  char* b = new char[1024];
-  sprintf(b, "untested: %s", what);
-
+  const char* b = NULL;
+  {
+    ResourceMark rm;
+    stringStream ss;
+    ss.print("untested: %s", what);
+    b = code_string(ss.as_string());
+  }
   if (ShowMessageBoxOnError) { STOP(b); }
   else                       { warn(b); }
 }
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/cpu/x86/vm/frame_x86.inline.hpp
--- a/src/cpu/x86/vm/frame_x86.inline.hpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/cpu/x86/vm/frame_x86.inline.hpp	Sun Mar 24 09:21:37 2013 +0100
@@ -295,14 +295,18 @@
   return true;
 }
 
-
+inline oop frame::saved_oop_result(RegisterMap* map) const {
+  oop* result_adr = (oop *)map->location(rax->as_VMReg());
+  guarantee(result_adr != NULL, "bad register save location");
 
-inline oop frame::saved_oop_result(RegisterMap* map) const       {
-  return *((oop*) map->location(rax->as_VMReg()));
+  return (*result_adr);
 }
 
 inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) {
-  *((oop*) map->location(rax->as_VMReg())) = obj;
+  oop* result_adr = (oop *)map->location(rax->as_VMReg());
+  guarantee(result_adr != NULL, "bad register save location");
+
+  *result_adr = obj;
 }
 
 #endif // CPU_X86_VM_FRAME_X86_INLINE_HPP
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/cpu/x86/vm/macroAssembler_x86.cpp
--- a/src/cpu/x86/vm/macroAssembler_x86.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/cpu/x86/vm/macroAssembler_x86.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -4262,8 +4262,13 @@
   if (!VerifyOops) return;
 
   // Pass register number to verify_oop_subroutine
-  char* b = new char[strlen(s) + 50];
-  sprintf(b, "verify_oop: %s: %s", reg->name(), s);
+  const char* b = NULL;
+  {
+    ResourceMark rm;
+    stringStream ss;
+    ss.print("verify_oop: %s: %s", reg->name(), s);
+    b = code_string(ss.as_string());
+  }
   BLOCK_COMMENT("verify_oop {");
 #ifdef _LP64
   push(rscratch1);                    // save r10, trashed by movptr()
@@ -4297,9 +4302,14 @@
   { Label L;
     testptr(tmp, tmp);
     if (WizardMode) {
+      const char* buf = NULL;
+      {
+        ResourceMark rm;
+        stringStream ss;
+        ss.print("DelayedValue="INTPTR_FORMAT, delayed_value_addr[1]);
+        buf = code_string(ss.as_string());
+      }
       jcc(Assembler::notZero, L);
-      char* buf = new char[40];
-      sprintf(buf, "DelayedValue="INTPTR_FORMAT, delayed_value_addr[1]);
       STOP(buf);
     } else {
       jccb(Assembler::notZero, L);
@@ -4343,9 +4353,13 @@
 
   // Address adjust(addr.base(), addr.index(), addr.scale(), addr.disp() + BytesPerWord);
   // Pass register number to verify_oop_subroutine
-  char* b = new char[strlen(s) + 50];
-  sprintf(b, "verify_oop_addr: %s", s);
-
+  const char* b = NULL;
+  {
+    ResourceMark rm;
+    stringStream ss;
+    ss.print("verify_oop_addr: %s", s);
+    b = code_string(ss.as_string());
+  }
 #ifdef _LP64
   push(rscratch1);                    // save r10, trashed by movptr()
 #endif
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/cpu/x86/vm/relocInfo_x86.cpp
--- a/src/cpu/x86/vm/relocInfo_x86.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/cpu/x86/vm/relocInfo_x86.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -145,12 +145,9 @@
   assert(which == Assembler::disp32_operand ||
          which == Assembler::call32_operand ||
          which == Assembler::imm_operand, "format unpacks ok");
-  if (which != Assembler::imm_operand) {
-    // The "address" in the code is a displacement can't return it as
-    // and address* since it is really a jint*
-    ShouldNotReachHere();
-    return NULL;
-  }
+  // The "address" in the code is a displacement can't return it as
+  // and address* since it is really a jint*
+  guarantee(which == Assembler::imm_operand, "must be immediate operand");
 #else
   assert(which == Assembler::disp32_operand || which == Assembler::imm_operand, "format unpacks ok");
 #endif // AMD64
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/os_cpu/linux_x86/vm/os_linux_x86.cpp
--- a/src/os_cpu/linux_x86/vm/os_linux_x86.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/os_cpu/linux_x86/vm/os_linux_x86.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -340,7 +340,7 @@
         // here if the underlying file has been truncated.
         // Do not crash the VM in such a case.
         CodeBlob* cb = CodeCache::find_blob_unsafe(pc);
-        nmethod* nm = cb->is_nmethod() ? (nmethod*)cb : NULL;
+        nmethod* nm = (cb != NULL && cb->is_nmethod()) ? (nmethod*)cb : NULL;
         if (nm != NULL && nm->has_unsafe_access()) {
           stub = StubRoutines::handler_for_unsafe_access();
         }
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/asm/assembler.cpp
--- a/src/share/vm/asm/assembler.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/asm/assembler.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -284,15 +284,19 @@
   DelayedConstant::update_all();
 }
 
-
-
-
 void AbstractAssembler::block_comment(const char* comment) {
   if (sect() == CodeBuffer::SECT_INSTS) {
     code_section()->outer()->block_comment(offset(), comment);
   }
 }
 
+const char* AbstractAssembler::code_string(const char* str) {
+  if (sect() == CodeBuffer::SECT_INSTS || sect() == CodeBuffer::SECT_STUBS) {
+    return code_section()->outer()->code_string(str);
+  }
+  return NULL;
+}
+
 bool MacroAssembler::needs_explicit_null_check(intptr_t offset) {
   // Exception handler checks the nmethod's implicit null checks table
   // only when this method returns false.
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/asm/assembler.hpp
--- a/src/share/vm/asm/assembler.hpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/asm/assembler.hpp	Sun Mar 24 09:21:37 2013 +0100
@@ -336,6 +336,8 @@
   // along with the disassembly when printing nmethods.  Currently
   // only supported in the instruction section of the code buffer.
   void block_comment(const char* comment);
+  // Copy str to a buffer that has the same lifetime as the CodeBuffer
+  const char* code_string(const char* str);
 
   // Label functions
   void bind(Label& L); // binds an unbound label L to the current code position
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/asm/codeBuffer.cpp
--- a/src/share/vm/asm/codeBuffer.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/asm/codeBuffer.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -703,8 +703,8 @@
   this->compute_final_layout(&dest);
   relocate_code_to(&dest);
 
-  // transfer comments from buffer to blob
-  dest_blob->set_comments(_comments);
+  // transfer strings and comments from buffer to blob
+  dest_blob->set_strings(_strings);
 
   // Done moving code bytes; were they the right size?
   assert(round_to(dest.total_content_size(), oopSize) == dest_blob->content_size(), "sanity");
@@ -1003,58 +1003,78 @@
 
 
 void CodeBuffer::block_comment(intptr_t offset, const char * comment) {
-  _comments.add_comment(offset, comment);
+  _strings.add_comment(offset, comment);
+}
+
+const char* CodeBuffer::code_string(const char* str) {
+  return _strings.add_string(str);
 }
 
-class CodeComment: public CHeapObj<mtCode> {
+class CodeString: public CHeapObj<mtCode> {
  private:
-  friend class CodeComments;
+  friend class CodeStrings;
+  const char * _string;
+  CodeString*  _next;
   intptr_t     _offset;
-  const char * _comment;
-  CodeComment* _next;
 
-  ~CodeComment() {
+  ~CodeString() {
     assert(_next == NULL, "wrong interface for freeing list");
-    os::free((void*)_comment, mtCode);
-  }
-
- public:
-  CodeComment(intptr_t offset, const char * comment) {
-    _offset = offset;
-    _comment = os::strdup(comment, mtCode);
-    _next = NULL;
+    os::free((void*)_string, mtCode);
   }
 
-  intptr_t     offset()  const { return _offset;  }
-  const char * comment() const { return _comment; }
-  CodeComment* next()          { return _next; }
-
-  void set_next(CodeComment* next) { _next = next; }
+  bool is_comment() const { return _offset >= 0; }
 
-  CodeComment* find(intptr_t offset) {
-    CodeComment* a = this;
-    while (a != NULL && a->_offset != offset) {
-      a = a->_next;
-    }
-    return a;
+ public:
+  CodeString(const char * string, intptr_t offset = -1)
+    : _next(NULL), _offset(offset) {
+    _string = os::strdup(string, mtCode);
   }
 
-  // Convenience for add_comment.
-  CodeComment* find_last(intptr_t offset) {
-    CodeComment* a = find(offset);
-    if (a != NULL) {
-      while ((a->_next != NULL) && (a->_next->_offset == offset)) {
-        a = a->_next;
-      }
+  const char * string() const { return _string; }
+  intptr_t     offset() const { assert(_offset >= 0, "offset for non comment?"); return _offset;  }
+  CodeString* next()    const { return _next; }
+
+  void set_next(CodeString* next) { _next = next; }
+
+  CodeString* first_comment() {
+    if (is_comment()) {
+      return this;
+    } else {
+      return next_comment();
     }
-    return a;
+  }
+  CodeString* next_comment() const {
+    CodeString* s = _next;
+    while (s != NULL && !s->is_comment()) {
+      s = s->_next;
+    }
+    return s;
   }
 };
 
+CodeString* CodeStrings::find(intptr_t offset) const {
+  CodeString* a = _strings->first_comment();
+  while (a != NULL && a->offset() != offset) {
+    a = a->next_comment();
+  }
+  return a;
+}
 
-void CodeComments::add_comment(intptr_t offset, const char * comment) {
-  CodeComment* c      = new CodeComment(offset, comment);
-  CodeComment* inspos = (_comments == NULL) ? NULL : _comments->find_last(offset);
+// Convenience for add_comment.
+CodeString* CodeStrings::find_last(intptr_t offset) const {
+  CodeString* a = find(offset);
+  if (a != NULL) {
+    CodeString* c = NULL;
+    while (((c = a->next_comment()) != NULL) && (c->offset() == offset)) {
+      a = c;
+    }
+  }
+  return a;
+}
+
+void CodeStrings::add_comment(intptr_t offset, const char * comment) {
+  CodeString* c      = new CodeString(comment, offset);
+  CodeString* inspos = (_strings == NULL) ? NULL : find_last(offset);
 
   if (inspos) {
     // insert after already existing comments with same offset
@@ -1062,43 +1082,47 @@
     inspos->set_next(c);
   } else {
     // no comments with such offset, yet. Insert before anything else.
-    c->set_next(_comments);
-    _comments = c;
+    c->set_next(_strings);
+    _strings = c;
   }
 }
 
-
-void CodeComments::assign(CodeComments& other) {
-  _comments = other._comments;
+void CodeStrings::assign(CodeStrings& other) {
+  _strings = other._strings;
 }
 
-
-void CodeComments::print_block_comment(outputStream* stream, intptr_t offset) const {
-  if (_comments != NULL) {
-    CodeComment* c = _comments->find(offset);
+void CodeStrings::print_block_comment(outputStream* stream, intptr_t offset) const {
+  if (_strings != NULL) {
+    CodeString* c = find(offset);
     while (c && c->offset() == offset) {
       stream->bol();
       stream->print("  ;; ");
-      stream->print_cr(c->comment());
-      c = c->next();
+      stream->print_cr(c->string());
+      c = c->next_comment();
     }
   }
 }
 
 
-void CodeComments::free() {
-  CodeComment* n = _comments;
+void CodeStrings::free() {
+  CodeString* n = _strings;
   while (n) {
     // unlink the node from the list saving a pointer to the next
-    CodeComment* p = n->_next;
-    n->_next = NULL;
+    CodeString* p = n->next();
+    n->set_next(NULL);
     delete n;
     n = p;
   }
-  _comments = NULL;
+  _strings = NULL;
 }
 
-
+const char* CodeStrings::add_string(const char * string) {
+  CodeString* s = new CodeString(string);
+  s->set_next(_strings);
+  _strings = s;
+  assert(s->string() != NULL, "should have a string");
+  return s->string();
+}
 
 void CodeBuffer::decode() {
   ttyLocker ttyl;
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/asm/codeBuffer.hpp
--- a/src/share/vm/asm/codeBuffer.hpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/asm/codeBuffer.hpp	Sun Mar 24 09:21:37 2013 +0100
@@ -28,7 +28,7 @@
 #include "code/oopRecorder.hpp"
 #include "code/relocInfo.hpp"
 
-class CodeComments;
+class CodeStrings;
 class PhaseCFG;
 class Compile;
 class BufferBlob;
@@ -240,27 +240,31 @@
 #endif //PRODUCT
 };
 
-class CodeComment;
-class CodeComments VALUE_OBJ_CLASS_SPEC {
+class CodeString;
+class CodeStrings VALUE_OBJ_CLASS_SPEC {
 private:
 #ifndef PRODUCT
-  CodeComment* _comments;
+  CodeString* _strings;
 #endif
 
+  CodeString* find(intptr_t offset) const;
+  CodeString* find_last(intptr_t offset) const;
+
 public:
-  CodeComments() {
+  CodeStrings() {
 #ifndef PRODUCT
-    _comments = NULL;
+    _strings = NULL;
 #endif
   }
 
+  const char* add_string(const char * string) PRODUCT_RETURN_(return NULL;);
+
   void add_comment(intptr_t offset, const char * comment) PRODUCT_RETURN;
   void print_block_comment(outputStream* stream, intptr_t offset) const PRODUCT_RETURN;
-  void assign(CodeComments& other)  PRODUCT_RETURN;
+  void assign(CodeStrings& other)  PRODUCT_RETURN;
   void free() PRODUCT_RETURN;
 };
 
-
 // A CodeBuffer describes a memory space into which assembly
 // code is generated.  This memory space usually occupies the
 // interior of a single BufferBlob, but in some cases it may be
@@ -326,7 +330,7 @@
   csize_t      _total_size;     // size in bytes of combined memory buffer
 
   OopRecorder* _oop_recorder;
-  CodeComments _comments;
+  CodeStrings  _strings;
   OopRecorder  _default_oop_recorder;  // override with initialize_oop_recorder
   Arena*       _overflow_arena;
 
@@ -527,7 +531,7 @@
   void initialize_oop_recorder(OopRecorder* r);
 
   OopRecorder* oop_recorder() const   { return _oop_recorder; }
-  CodeComments& comments()            { return _comments; }
+  CodeStrings& strings()              { return _strings; }
 
   // Code generation
   void relocate(address at, RelocationHolder const& rspec, int format = 0) {
@@ -556,6 +560,7 @@
   address transform_address(const CodeBuffer &cb, address addr) const;
 
   void block_comment(intptr_t offset, const char * comment) PRODUCT_RETURN;
+  const char* code_string(const char* str) PRODUCT_RETURN_(return NULL;);
 
   // Log a little info about section usage in the CodeBuffer
   void log_section_sizes(const char* name);
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/ci/ciEnv.cpp
--- a/src/share/vm/ci/ciEnv.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/ci/ciEnv.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -802,6 +802,7 @@
   // require checks to make sure the expected type was found.  Given that this
   // only occurs for clone() the more extensive fix seems like overkill so
   // instead we simply smear the array type into Object.
+  guarantee(method_holder != NULL, "no method holder");
   if (method_holder->is_instance_klass()) {
     return method_holder->as_instance_klass();
   } else if (method_holder->is_array_klass()) {
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/classfile/defaultMethods.cpp
--- a/src/share/vm/classfile/defaultMethods.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/classfile/defaultMethods.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -348,7 +348,7 @@
 
   void disqualify_method(Method* method) {
     int* index = _member_index.get(method);
-    assert(index != NULL && *index >= 0 && *index < _members.length(), "bad index");
+    guarantee(index != NULL && *index >= 0 && *index < _members.length(), "bad index");
     _members.at(*index).second = DISQUALIFIED;
   }
 
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/code/codeBlob.cpp
--- a/src/share/vm/code/codeBlob.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/code/codeBlob.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -186,7 +186,7 @@
     FREE_C_HEAP_ARRAY(unsigned char, _oop_maps, mtCode);
     _oop_maps = NULL;
   }
-  _comments.free();
+  _strings.free();
 }
 
 
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/code/codeBlob.hpp
--- a/src/share/vm/code/codeBlob.hpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/code/codeBlob.hpp	Sun Mar 24 09:21:37 2013 +0100
@@ -66,7 +66,7 @@
   int        _data_offset;                       // offset to where data region begins
   int        _frame_size;                        // size of stack frame
   OopMapSet* _oop_maps;                          // OopMap for this CodeBlob
-  CodeComments _comments;
+  CodeStrings _strings;
 
  public:
   // Returns the space needed for CodeBlob
@@ -186,12 +186,12 @@
   // Print the comment associated with offset on stream, if there is one
   virtual void print_block_comment(outputStream* stream, address block_begin) const {
     intptr_t offset = (intptr_t)(block_begin - code_begin());
-    _comments.print_block_comment(stream, offset);
+    _strings.print_block_comment(stream, offset);
   }
 
   // Transfer ownership of comments to this CodeBlob
-  void set_comments(CodeComments& comments) {
-    _comments.assign(comments);
+  void set_strings(CodeStrings& strings) {
+    _strings.assign(strings);
   }
 };
 
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/code/compiledIC.cpp
--- a/src/share/vm/code/compiledIC.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/code/compiledIC.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -552,7 +552,7 @@
 
 void CompiledStaticCall::set_to_interpreted(methodHandle callee, address entry) {
   address stub=find_stub();
-  assert(stub!=NULL, "stub not found");
+  guarantee(stub != NULL, "stub not found");
 
   if (TraceICs) {
     ResourceMark rm;
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/code/icBuffer.hpp
--- a/src/share/vm/code/icBuffer.hpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/code/icBuffer.hpp	Sun Mar 24 09:21:37 2013 +0100
@@ -50,7 +50,7 @@
   friend class ICStubInterface;
   // This will be called only by ICStubInterface
   void    initialize(int size,
-                     CodeComments comments)      { _size = size; _ic_site = NULL; }
+                     CodeStrings strings)        { _size = size; _ic_site = NULL; }
   void    finalize(); // called when a method is removed
 
   // General info
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/code/stubs.cpp
--- a/src/share/vm/code/stubs.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/code/stubs.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -101,8 +101,8 @@
 
 Stub* StubQueue::request_committed(int code_size) {
   Stub* s = request(code_size);
-  CodeComments comments;
-  if (s != NULL) commit(code_size, comments);
+  CodeStrings strings;
+  if (s != NULL) commit(code_size, strings);
   return s;
 }
 
@@ -119,8 +119,8 @@
       assert(_buffer_limit == _buffer_size, "buffer must be fully usable");
       if (_queue_end + requested_size <= _buffer_size) {
         // code fits in at the end => nothing to do
-        CodeComments comments;
-        stub_initialize(s, requested_size, comments);
+        CodeStrings strings;
+        stub_initialize(s, requested_size, strings);
         return s;
       } else {
         // stub doesn't fit in at the queue end
@@ -137,8 +137,8 @@
     // Queue: |XXX|.......|XXXXXXX|.......|
     //        ^0  ^end    ^begin  ^limit  ^size
     s = current_stub();
-    CodeComments comments;
-    stub_initialize(s, requested_size, comments);
+    CodeStrings strings;
+    stub_initialize(s, requested_size, strings);
     return s;
   }
   // Not enough space left
@@ -147,12 +147,12 @@
 }
 
 
-void StubQueue::commit(int committed_code_size, CodeComments& comments) {
+void StubQueue::commit(int committed_code_size, CodeStrings& strings) {
   assert(committed_code_size > 0, "committed_code_size must be > 0");
   int committed_size = round_to(stub_code_size_to_size(committed_code_size), CodeEntryAlignment);
   Stub* s = current_stub();
   assert(committed_size <= stub_size(s), "committed size must not exceed requested size");
-  stub_initialize(s, committed_size, comments);
+  stub_initialize(s, committed_size, strings);
   _queue_end += committed_size;
   _number_of_stubs++;
   if (_mutex != NULL) _mutex->unlock();
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/code/stubs.hpp
--- a/src/share/vm/code/stubs.hpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/code/stubs.hpp	Sun Mar 24 09:21:37 2013 +0100
@@ -73,7 +73,7 @@
  public:
   // Initialization/finalization
   void    initialize(int size,
-                     CodeComments& comments)     { ShouldNotCallThis(); }                // called to initialize/specify the stub's size
+                     CodeStrings& strings)       { ShouldNotCallThis(); }                // called to initialize/specify the stub's size
   void    finalize()                             { ShouldNotCallThis(); }                // called before the stub is deallocated
 
   // General info/converters
@@ -107,7 +107,7 @@
  public:
   // Initialization/finalization
   virtual void    initialize(Stub* self, int size,
-                             CodeComments& comments)       = 0; // called after creation (called twice if allocated via (request, commit))
+                             CodeStrings& strings)         = 0; // called after creation (called twice if allocated via (request, commit))
   virtual void    finalize(Stub* self)                     = 0; // called before deallocation
 
   // General info/converters
@@ -136,7 +136,7 @@
    public:                                                 \
     /* Initialization/finalization */                      \
     virtual void    initialize(Stub* self, int size,       \
-                               CodeComments& comments)     { cast(self)->initialize(size, comments); } \
+                               CodeStrings& strings)       { cast(self)->initialize(size, strings); } \
     virtual void    finalize(Stub* self)                   { cast(self)->finalize(); }             \
                                                            \
     /* General info */                                     \
@@ -176,7 +176,7 @@
 
   // Stub functionality accessed via interface
   void  stub_initialize(Stub* s, int size,
-                        CodeComments& comments)  { assert(size % CodeEntryAlignment == 0, "size not aligned"); _stub_interface->initialize(s, size, comments); }
+                        CodeStrings& strings)    { assert(size % CodeEntryAlignment == 0, "size not aligned"); _stub_interface->initialize(s, size, strings); }
   void  stub_finalize(Stub* s)                   { _stub_interface->finalize(s); }
   int   stub_size(Stub* s) const                 { return _stub_interface->size(s); }
   bool  stub_contains(Stub* s, address pc) const { return _stub_interface->code_begin(s) <= pc && pc < _stub_interface->code_end(s); }
@@ -206,7 +206,7 @@
   Stub* request_committed(int code_size);        // request a stub that provides exactly code_size space for code
   Stub* request(int requested_code_size);        // request a stub with a (maximum) code space - locks the queue
   void  commit (int committed_code_size,
-                CodeComments& comments);         // commit the previously requested stub - unlocks the queue
+                CodeStrings& strings);           // commit the previously requested stub - unlocks the queue
 
   // Stub deallocation
   void  remove_first();                          // remove the first stub in the queue
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/compiler/compileBroker.cpp
--- a/src/share/vm/compiler/compileBroker.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/compiler/compileBroker.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -65,9 +65,8 @@
 HS_DTRACE_PROBE_DECL9(hotspot, method__compile__end,
   char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t, bool);
 
-#define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method)              \
+#define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method, comp_name)   \
   {                                                                      \
-    char* comp_name = (char*)(compiler)->name();                         \
     Symbol* klass_name = (method)->klass_name();                         \
     Symbol* name = (method)->name();                                     \
     Symbol* signature = (method)->signature();                           \
@@ -78,9 +77,9 @@
       signature->bytes(), signature->utf8_length());                     \
   }
 
-#define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success)       \
+#define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method,                \
+                                        comp_name, success)              \
   {                                                                      \
-    char* comp_name = (char*)(compiler)->name();                         \
     Symbol* klass_name = (method)->klass_name();                         \
     Symbol* name = (method)->name();                                     \
     Symbol* signature = (method)->signature();                           \
@@ -93,22 +92,21 @@
 
 #else /* USDT2 */
 
-#define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method)              \
+#define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method, comp_name)   \
   {                                                                      \
-    char* comp_name = (char*)(compiler)->name();                         \
     Symbol* klass_name = (method)->klass_name();                         \
     Symbol* name = (method)->name();                                     \
     Symbol* signature = (method)->signature();                           \
-    HOTSPOT_METHOD_COMPILE_BEGIN(                                       \
+    HOTSPOT_METHOD_COMPILE_BEGIN(                                        \
       comp_name, strlen(comp_name),                                      \
-      (char *) klass_name->bytes(), klass_name->utf8_length(),          \
+      (char *) klass_name->bytes(), klass_name->utf8_length(),           \
       (char *) name->bytes(), name->utf8_length(),                       \
       (char *) signature->bytes(), signature->utf8_length());            \
   }
 
-#define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success)       \
+#define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method,                \
+                                        comp_name, success)              \
   {                                                                      \
-    char* comp_name = (char*)(compiler)->name();                         \
     Symbol* klass_name = (method)->klass_name();                         \
     Symbol* name = (method)->name();                                     \
     Symbol* signature = (method)->signature();                           \
@@ -122,8 +120,8 @@
 
 #else //  ndef DTRACE_ENABLED
 
-#define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method)
-#define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, success)
+#define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method, comp_name)
+#define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, comp_name, success)
 
 #endif // ndef DTRACE_ENABLED
 
@@ -359,7 +357,7 @@
 //
 void CompileTask::print_line_on_error(outputStream* st, char* buf, int buflen) {
   // print compiler name
-  st->print("%s:", CompileBroker::compiler(comp_level())->name());
+  st->print("%s:", CompileBroker::compiler_name(comp_level()));
   print_compilation(st);
 }
 
@@ -368,7 +366,7 @@
 void CompileTask::print_line() {
   ttyLocker ttyl;  // keep the following output all in one block
   // print compiler name if requested
-  if (CIPrintCompilerName) tty->print("%s:", CompileBroker::compiler(comp_level())->name());
+  if (CIPrintCompilerName) tty->print("%s:", CompileBroker::compiler_name(comp_level()));
   print_compilation();
 }
 
@@ -1217,8 +1215,9 @@
 
   // lock, make sure that the compilation
   // isn't prohibited in a straightforward way.
-
-  if (compiler(comp_level) == NULL || !compiler(comp_level)->can_compile_method(method) || compilation_is_prohibited(method, osr_bci, comp_level)) {
+  AbstractCompiler *comp = CompileBroker::compiler(comp_level);
+  if (comp == NULL || !comp->can_compile_method(method) ||
+      compilation_is_prohibited(method, osr_bci, comp_level)) {
     return NULL;
   }
 
@@ -1255,7 +1254,7 @@
 
   assert(!HAS_PENDING_EXCEPTION, "No exception should be present");
   // some prerequisites that are compiler specific
-  if (compiler(comp_level)->is_c2() || compiler(comp_level)->is_shark()) {
+  if (comp->is_c2() || comp->is_shark()) {
     method->constants()->resolve_string_constants(CHECK_AND_CLEAR_NULL);
     // Resolve all classes seen in the signature of the method
     // we are compiling.
@@ -1372,8 +1371,9 @@
 bool CompileBroker::compilation_is_prohibited(methodHandle method, int osr_bci, int comp_level) {
   bool is_native = method->is_native();
   // Some compilers may not support the compilation of natives.
+  AbstractCompiler *comp = compiler(comp_level);
   if (is_native &&
-      (!CICompileNatives || !compiler(comp_level)->supports_native())) {
+      (!CICompileNatives || comp == NULL || !comp->supports_native())) {
     method->set_not_compilable_quietly(comp_level);
     return true;
   }
@@ -1381,7 +1381,7 @@
   bool is_osr = (osr_bci != standard_entry_bci);
   // Some compilers may not support on stack replacement.
   if (is_osr &&
-      (!CICompileOSR || !compiler(comp_level)->supports_osr())) {
+      (!CICompileOSR || comp == NULL || !comp->supports_osr())) {
     method->set_not_osr_compilable(comp_level);
     return true;
   }
@@ -1753,6 +1753,7 @@
   bool is_osr = (osr_bci != standard_entry_bci);
   bool should_log = (thread->log() != NULL);
   bool should_break = false;
+  int task_level = task->comp_level();
   {
     // create the handle inside it's own block so it can't
     // accidentally be referenced once the thread transitions to
@@ -1766,9 +1767,10 @@
     assert(!method->is_native(), "no longer compile natives");
 
     // Save information about this method in case of failure.
-    set_last_compile(thread, method, is_osr, task->comp_level());
+    set_last_compile(thread, method, is_osr, task_level);
 
-    DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler(task->comp_level()), method);
+    DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler(task_level), method,
+                                      compiler_name(task_level));
   }
 
   // Allocate a new set of JNI handles.
@@ -1805,7 +1807,12 @@
 
     TraceTime t1("compilation", &time);
 
-    compiler(task->comp_level())->compile_method(&ci_env, target, osr_bci);
+    AbstractCompiler *comp = compiler(task_level);
+    if (comp == NULL) {
+      ci_env.record_method_not_compilable("no compiler", !TieredCompilation);
+    } else {
+      comp->compile_method(&ci_env, target, osr_bci);
+    }
 
     if (!ci_env.failing() && task->code() == NULL) {
       //assert(false, "compiler should always document failure");
@@ -1843,7 +1850,8 @@
 
   methodHandle method(thread, task->method());
 
-  DTRACE_METHOD_COMPILE_END_PROBE(compiler(task->comp_level()), method, task->is_success());
+  DTRACE_METHOD_COMPILE_END_PROBE(compiler(task_level), method,
+                                  compiler_name(task_level), task->is_success());
 
   collect_statistics(thread, time, task);
 
@@ -1868,9 +1876,9 @@
     break;
   case ciEnv::MethodCompilable_not_at_tier:
     if (is_osr)
-      method->set_not_osr_compilable_quietly(task->comp_level());
+      method->set_not_osr_compilable_quietly(task_level);
     else
-      method->set_not_compilable_quietly(task->comp_level());
+      method->set_not_compilable_quietly(task_level);
     break;
   }
 
@@ -2128,7 +2136,14 @@
   if (UsePerfData) counters->set_current_method("");
 }
 
-
+const char* CompileBroker::compiler_name(int comp_level) {
+  AbstractCompiler *comp = CompileBroker::compiler(comp_level);
+  if (comp == NULL) {
+    return "no compiler";
+  } else {
+    return (comp->name());
+  }
+}
 
 void CompileBroker::print_times() {
   tty->cr();
@@ -2142,11 +2157,13 @@
                 CompileBroker::_t_standard_compilation.seconds() / CompileBroker::_total_standard_compile_count);
   tty->print_cr("    On stack replacement   : %6.3f s, Average : %2.3f", CompileBroker::_t_osr_compilation.seconds(), CompileBroker::_t_osr_compilation.seconds() / CompileBroker::_total_osr_compile_count);
 
-  if (compiler(CompLevel_simple) != NULL) {
-    compiler(CompLevel_simple)->print_timers();
+  AbstractCompiler *comp = compiler(CompLevel_simple);
+  if (comp != NULL) {
+    comp->print_timers();
   }
-  if (compiler(CompLevel_full_optimization) != NULL) {
-    compiler(CompLevel_full_optimization)->print_timers();
+  comp = compiler(CompLevel_full_optimization);
+  if (comp != NULL) {
+    comp->print_timers();
   }
   tty->cr();
   int tcb = CompileBroker::_sum_osr_bytes_compiled + CompileBroker::_sum_standard_bytes_compiled;
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/compiler/compileBroker.hpp
--- a/src/share/vm/compiler/compileBroker.hpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/compiler/compileBroker.hpp	Sun Mar 24 09:21:37 2013 +0100
@@ -418,6 +418,9 @@
   static void print_last_compile();
 
   static void print_compiler_threads_on(outputStream* st);
+
+  // compiler name for debugging
+  static const char* compiler_name(int comp_level);
 };
 
 #endif // SHARE_VM_COMPILER_COMPILEBROKER_HPP
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/compiler/disassembler.cpp
--- a/src/share/vm/compiler/disassembler.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/compiler/disassembler.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -158,7 +158,7 @@
  private:
   nmethod*      _nm;
   CodeBlob*     _code;
-  CodeComments  _comments;
+  CodeStrings   _strings;
   outputStream* _output;
   address       _start, _end;
 
@@ -198,7 +198,7 @@
   void print_address(address value);
 
  public:
-  decode_env(CodeBlob* code, outputStream* output, CodeComments c = CodeComments());
+  decode_env(CodeBlob* code, outputStream* output, CodeStrings c = CodeStrings());
 
   address decode_instructions(address start, address end);
 
@@ -242,13 +242,13 @@
   const char* options() { return _option_buf; }
 };
 
-decode_env::decode_env(CodeBlob* code, outputStream* output, CodeComments c) {
+decode_env::decode_env(CodeBlob* code, outputStream* output, CodeStrings c) {
   memset(this, 0, sizeof(*this));
   _output = output ? output : tty;
   _code = code;
   if (code != NULL && code->is_nmethod())
     _nm = (nmethod*) code;
-  _comments.assign(c);
+  _strings.assign(c);
 
   // by default, output pc but not bytes:
   _print_pc       = true;
@@ -370,7 +370,7 @@
   if (cb != NULL) {
     cb->print_block_comment(st, p);
   }
-  _comments.print_block_comment(st, (intptr_t)(p - _start));
+  _strings.print_block_comment(st, (intptr_t)(p - _start));
   if (_print_pc) {
     st->print("  " PTR_FORMAT ": ", p);
   }
@@ -498,7 +498,7 @@
   env.decode_instructions(cb->code_begin(), cb->code_end());
 }
 
-void Disassembler::decode(address start, address end, outputStream* st, CodeComments c) {
+void Disassembler::decode(address start, address end, outputStream* st, CodeStrings c) {
   if (!load_library())  return;
   decode_env env(CodeCache::find_blob_unsafe(start), st, c);
   env.decode_instructions(start, end);
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/compiler/disassembler.hpp
--- a/src/share/vm/compiler/disassembler.hpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/compiler/disassembler.hpp	Sun Mar 24 09:21:37 2013 +0100
@@ -100,7 +100,7 @@
   }
   static void decode(CodeBlob *cb,               outputStream* st = NULL);
   static void decode(nmethod* nm,                outputStream* st = NULL);
-  static void decode(address begin, address end, outputStream* st = NULL, CodeComments c = CodeComments());
+  static void decode(address begin, address end, outputStream* st = NULL, CodeStrings c = CodeStrings());
 };
 
 #endif // SHARE_VM_COMPILER_DISASSEMBLER_HPP
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp
--- a/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -6068,6 +6068,10 @@
   verify_work_stacks_empty();
   verify_overflow_empty();
 
+  if (should_unload_classes()) {
+    ClassLoaderDataGraph::purge();
+  }
+
   _intra_sweep_timer.stop();
   _intra_sweep_estimate.sample(_intra_sweep_timer.seconds());
 
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/gc_implementation/g1/concurrentMark.cpp
--- a/src/share/vm/gc_implementation/g1/concurrentMark.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/gc_implementation/g1/concurrentMark.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -784,7 +784,7 @@
   }
 }
 
-void ConcurrentMark::set_phase(uint active_tasks, bool concurrent) {
+void ConcurrentMark::set_concurrency(uint active_tasks) {
   assert(active_tasks <= _max_worker_id, "we should not have more");
 
   _active_tasks = active_tasks;
@@ -793,6 +793,10 @@
   _terminator   = ParallelTaskTerminator((int) active_tasks, _task_queues);
   _first_overflow_barrier_sync.set_n_workers((int) active_tasks);
   _second_overflow_barrier_sync.set_n_workers((int) active_tasks);
+}
+
+void ConcurrentMark::set_concurrency_and_phase(uint active_tasks, bool concurrent) {
+  set_concurrency(active_tasks);
 
   _concurrent = concurrent;
   // We propagate this to all tasks, not just the active ones.
@@ -806,7 +810,9 @@
     // false before we start remark. At this point we should also be
     // in a STW phase.
     assert(!concurrent_marking_in_progress(), "invariant");
-    assert(_finger == _heap_end, "only way to get here");
+    assert(_finger == _heap_end,
+           err_msg("only way to get here: _finger: "PTR_FORMAT", _heap_end: "PTR_FORMAT,
+                   _finger, _heap_end));
     update_g1_committed(true);
   }
 }
@@ -974,20 +980,28 @@
     gclog_or_tty->print_cr("[%u] leaving first barrier", worker_id);
   }
 
-  // let the task associated with with worker 0 do this
-  if (worker_id == 0) {
-    // task 0 is responsible for clearing the global data structures
-    // We should be here because of an overflow. During STW we should
-    // not clear the overflow flag since we rely on it being true when
-    // we exit this method to abort the pause and restart concurent
-    // marking.
-    reset_marking_state(concurrent() /* clear_overflow */);
-    force_overflow()->update();
-
-    if (G1Log::fine()) {
-      gclog_or_tty->date_stamp(PrintGCDateStamps);
-      gclog_or_tty->stamp(PrintGCTimeStamps);
-      gclog_or_tty->print_cr("[GC concurrent-mark-reset-for-overflow]");
+  // If we're executing the concurrent phase of marking, reset the marking
+  // state; otherwise the marking state is reset after reference processing,
+  // during the remark pause.
+  // If we reset here as a result of an overflow during the remark we will
+  // see assertion failures from any subsequent set_concurrency_and_phase()
+  // calls.
+  if (concurrent()) {
+    // let the task associated with with worker 0 do this
+    if (worker_id == 0) {
+      // task 0 is responsible for clearing the global data structures
+      // We should be here because of an overflow. During STW we should
+      // not clear the overflow flag since we rely on it being true when
+      // we exit this method to abort the pause and restart concurent
+      // marking.
+      reset_marking_state(true /* clear_overflow */);
+      force_overflow()->update();
+
+      if (G1Log::fine()) {
+        gclog_or_tty->date_stamp(PrintGCDateStamps);
+        gclog_or_tty->stamp(PrintGCTimeStamps);
+        gclog_or_tty->print_cr("[GC concurrent-mark-reset-for-overflow]");
+      }
     }
   }
 
@@ -1007,7 +1021,7 @@
   if (concurrent()) {
     ConcurrentGCThread::stsJoin();
   }
-  // at this point everything should be re-initialised and ready to go
+  // at this point everything should be re-initialized and ready to go
 
   if (verbose_low()) {
     gclog_or_tty->print_cr("[%u] leaving second barrier", worker_id);
@@ -1065,8 +1079,8 @@
         double mark_step_duration_ms = G1ConcMarkStepDurationMillis;
 
         the_task->do_marking_step(mark_step_duration_ms,
-                                  true /* do_stealing    */,
-                                  true /* do_termination */);
+                                  true  /* do_termination */,
+                                  false /* is_serial*/);
 
         double end_time_sec = os::elapsedTime();
         double end_vtime_sec = os::elapsedVTime();
@@ -1222,8 +1236,8 @@
 
   uint active_workers = MAX2(1U, parallel_marking_threads());
 
-  // Parallel task terminator is set in "set_phase()"
-  set_phase(active_workers, true /* concurrent */);
+  // Parallel task terminator is set in "set_concurrency_and_phase()"
+  set_concurrency_and_phase(active_workers, true /* concurrent */);
 
   CMConcurrentMarkingTask markingTask(this, cmThread());
   if (use_parallel_marking_threads()) {
@@ -1275,12 +1289,22 @@
   if (has_overflown()) {
     // Oops.  We overflowed.  Restart concurrent marking.
     _restart_for_overflow = true;
+    if (G1TraceMarkStackOverflow) {
+      gclog_or_tty->print_cr("\nRemark led to restart for overflow.");
+    }
+
+    // Verify the heap w.r.t. the previous marking bitmap.
+    if (VerifyDuringGC) {
+      HandleMark hm;  // handle scope
+      gclog_or_tty->print(" VerifyDuringGC:(overflow)");
+      Universe::heap()->prepare_for_verify();
+      Universe::verify(/* silent */ false,
+                       /* option */ VerifyOption_G1UsePrevMarking);
+    }
+
     // Clear the marking state because we will be restarting
     // marking due to overflowing the global mark stack.
     reset_marking_state();
-    if (G1TraceMarkStackOverflow) {
-      gclog_or_tty->print_cr("\nRemark led to restart for overflow.");
-    }
   } else {
     // Aggregate the per-task counting data that we have accumulated
     // while marking.
@@ -2184,14 +2208,17 @@
 // operating on the global stack.
 
 class G1CMKeepAliveAndDrainClosure: public OopClosure {
-  ConcurrentMark*  _cm;
-  CMTask*          _task;
-  int              _ref_counter_limit;
-  int              _ref_counter;
+  ConcurrentMark* _cm;
+  CMTask*         _task;
+  int             _ref_counter_limit;
+  int             _ref_counter;
+  bool            _is_serial;
  public:
-  G1CMKeepAliveAndDrainClosure(ConcurrentMark* cm, CMTask* task) :
-    _cm(cm), _task(task), _ref_counter_limit(G1RefProcDrainInterval) {
+  G1CMKeepAliveAndDrainClosure(ConcurrentMark* cm, CMTask* task, bool is_serial) :
+    _cm(cm), _task(task), _is_serial(is_serial),
+    _ref_counter_limit(G1RefProcDrainInterval) {
     assert(_ref_counter_limit > 0, "sanity");
+    assert(!_is_serial || _task->worker_id() == 0, "only task 0 for serial code");
     _ref_counter = _ref_counter_limit;
   }
 
@@ -2230,8 +2257,8 @@
         do {
           double mark_step_duration_ms = G1ConcMarkStepDurationMillis;
           _task->do_marking_step(mark_step_duration_ms,
-                                 false /* do_stealing    */,
-                                 false /* do_termination */);
+                                 false      /* do_termination */,
+                                 _is_serial);
         } while (_task->has_aborted() && !_cm->has_overflown());
         _ref_counter = _ref_counter_limit;
       }
@@ -2253,27 +2280,18 @@
 class G1CMDrainMarkingStackClosure: public VoidClosure {
   ConcurrentMark* _cm;
   CMTask*         _task;
-  bool            _do_stealing;
-  bool            _do_termination;
+  bool            _is_serial;
  public:
-  G1CMDrainMarkingStackClosure(ConcurrentMark* cm, CMTask* task, bool is_par) :
-    _cm(cm), _task(task) {
-    assert(is_par || _task->worker_id() == 0,
-           "Only task for worker 0 should be used if ref processing is single threaded");
-    // We only allow stealing and only enter the termination protocol
-    // in CMTask::do_marking_step() if this closure is being instantiated
-    // for parallel reference processing.
-    _do_stealing = _do_termination = is_par;
+  G1CMDrainMarkingStackClosure(ConcurrentMark* cm, CMTask* task, bool is_serial) :
+    _cm(cm), _task(task), _is_serial(is_serial) {
+    assert(!_is_serial || _task->worker_id() == 0, "only task 0 for serial code");
   }
 
   void do_void() {
     do {
       if (_cm->verbose_high()) {
-        gclog_or_tty->print_cr("\t[%u] Drain: Calling do_marking_step - "
-                               "stealing: %s, termination: %s",
-                               _task->worker_id(),
-                               BOOL_TO_STR(_do_stealing),
-                               BOOL_TO_STR(_do_termination));
+        gclog_or_tty->print_cr("\t[%u] Drain: Calling do_marking_step - serial: %s",
+                               _task->worker_id(), BOOL_TO_STR(_is_serial));
       }
 
       // We call CMTask::do_marking_step() to completely drain the local
@@ -2294,8 +2312,8 @@
       // has_aborted() flag that the marking step has completed.
 
       _task->do_marking_step(1000000000.0 /* something very large */,
-                             _do_stealing,
-                             _do_termination);
+                             true         /* do_termination */,
+                             _is_serial);
     } while (_task->has_aborted() && !_cm->has_overflown());
   }
 };
@@ -2328,7 +2346,6 @@
   ProcessTask&     _proc_task;
   G1CollectedHeap* _g1h;
   ConcurrentMark*  _cm;
-  bool             _processing_is_mt;
 
 public:
   G1CMRefProcTaskProxy(ProcessTask& proc_task,
@@ -2336,15 +2353,15 @@
                      ConcurrentMark* cm) :
     AbstractGangTask("Process reference objects in parallel"),
     _proc_task(proc_task), _g1h(g1h), _cm(cm) {
-      ReferenceProcessor* rp = _g1h->ref_processor_cm();
-      _processing_is_mt = rp->processing_is_mt();
-    }
+    ReferenceProcessor* rp = _g1h->ref_processor_cm();
+    assert(rp->processing_is_mt(), "shouldn't be here otherwise");
+  }
 
   virtual void work(uint worker_id) {
-    CMTask* marking_task = _cm->task(worker_id);
+    CMTask* task = _cm->task(worker_id);
     G1CMIsAliveClosure g1_is_alive(_g1h);
-    G1CMKeepAliveAndDrainClosure g1_par_keep_alive(_cm, marking_task);
-    G1CMDrainMarkingStackClosure g1_par_drain(_cm, marking_task, _processing_is_mt);
+    G1CMKeepAliveAndDrainClosure g1_par_keep_alive(_cm, task, false /* is_serial */);
+    G1CMDrainMarkingStackClosure g1_par_drain(_cm, task, false /* is_serial */);
 
     _proc_task.work(worker_id, g1_is_alive, g1_par_keep_alive, g1_par_drain);
   }
@@ -2356,9 +2373,11 @@
 
   G1CMRefProcTaskProxy proc_task_proxy(proc_task, _g1h, _cm);
 
-  // We need to reset the phase for each task execution so that
-  // the termination protocol of CMTask::do_marking_step works.
-  _cm->set_phase(_active_workers, false /* concurrent */);
+  // We need to reset the concurrency level before each
+  // proxy task execution, so that the termination protocol
+  // and overflow handling in CMTask::do_marking_step() knows
+  // how many workers to wait for.
+  _cm->set_concurrency(_active_workers);
   _g1h->set_par_threads(_active_workers);
   _workers->run_task(&proc_task_proxy);
   _g1h->set_par_threads(0);
@@ -2384,12 +2403,29 @@
 
   G1CMRefEnqueueTaskProxy enq_task_proxy(enq_task);
 
+  // Not strictly necessary but...
+  //
+  // We need to reset the concurrency level before each
+  // proxy task execution, so that the termination protocol
+  // and overflow handling in CMTask::do_marking_step() knows
+  // how many workers to wait for.
+  _cm->set_concurrency(_active_workers);
   _g1h->set_par_threads(_active_workers);
   _workers->run_task(&enq_task_proxy);
   _g1h->set_par_threads(0);
 }
 
 void ConcurrentMark::weakRefsWork(bool clear_all_soft_refs) {
+  if (has_overflown()) {
+    // Skip processing the discovered references if we have
+    // overflown the global marking stack. Reference objects
+    // only get discovered once so it is OK to not
+    // de-populate the discovered reference lists. We could have,
+    // but the only benefit would be that, when marking restarts,
+    // less reference objects are discovered.
+    return;
+  }
+
   ResourceMark rm;
   HandleMark   hm;
 
@@ -2415,26 +2451,39 @@
     rp->setup_policy(clear_all_soft_refs);
     assert(_markStack.isEmpty(), "mark stack should be empty");
 
-    // Non-MT instances 'Keep Alive' and 'Complete GC' oop closures.
-    G1CMKeepAliveAndDrainClosure g1_keep_alive(this, task(0));
-    G1CMDrainMarkingStackClosure g1_drain_mark_stack(this, task(0), false);
-
-    // We need at least one active thread. If reference processing is
-    // not multi-threaded we use the current (ConcurrentMarkThread) thread,
-    // otherwise we use the work gang from the G1CollectedHeap and we
-    // utilize all the worker threads we can.
-    uint active_workers = (rp->processing_is_mt() && g1h->workers() != NULL
-                                ? g1h->workers()->active_workers()
-                                : 1U);
-
+    // Instances of the 'Keep Alive' and 'Complete GC' closures used
+    // in serial reference processing. Note these closures are also
+    // used for serially processing (by the the current thread) the
+    // JNI references during parallel reference processing.
+    //
+    // These closures do not need to synchronize with the worker
+    // threads involved in parallel reference processing as these
+    // instances are executed serially by the current thread (e.g.
+    // reference processing is not multi-threaded and is thus
+    // performed by the current thread instead of a gang worker).
+    //
+    // The gang tasks involved in parallel reference procssing create
+    // their own instances of these closures, which do their own
+    // synchronization among themselves.
+    G1CMKeepAliveAndDrainClosure g1_keep_alive(this, task(0), true /* is_serial */);
+    G1CMDrainMarkingStackClosure g1_drain_mark_stack(this, task(0), true /* is_serial */);
+
+    // We need at least one active thread. If reference processing
+    // is not multi-threaded we use the current (VMThread) thread,
+    // otherwise we use the work gang from the G1CollectedHeap and
+    // we utilize all the worker threads we can.
+    bool processing_is_mt = rp->processing_is_mt() && g1h->workers() != NULL;
+    uint active_workers = (processing_is_mt ? g1h->workers()->active_workers() : 1U);
     active_workers = MAX2(MIN2(active_workers, _max_worker_id), 1U);
 
+    // Parallel processing task executor.
     G1CMRefProcTaskExecutor par_task_executor(g1h, this,
                                               g1h->workers(), active_workers);
-
-    AbstractRefProcTaskExecutor* executor = (rp->processing_is_mt()
-                                                ? &par_task_executor
-                                                : NULL);
+    AbstractRefProcTaskExecutor* executor = (processing_is_mt ? &par_task_executor : NULL);
+
+    // Set the concurrency level. The phase was already set prior to
+    // executing the remark task.
+    set_concurrency(active_workers);
 
     // Set the degree of MT processing here.  If the discovery was done MT,
     // the number of threads involved during discovery could differ from
@@ -2454,6 +2503,7 @@
 
     assert(_markStack.overflow() || _markStack.isEmpty(),
             "mark stack should be empty (unless it overflowed)");
+
     if (_markStack.overflow()) {
       // This should have been done already when we tried to push an
       // entry on to the global mark stack. But let's do it again.
@@ -2482,8 +2532,8 @@
 
 class CMRemarkTask: public AbstractGangTask {
 private:
-  ConcurrentMark *_cm;
-
+  ConcurrentMark* _cm;
+  bool            _is_serial;
 public:
   void work(uint worker_id) {
     // Since all available tasks are actually started, we should
@@ -2493,8 +2543,8 @@
       task->record_start_time();
       do {
         task->do_marking_step(1000000000.0 /* something very large */,
-                              true /* do_stealing    */,
-                              true /* do_termination */);
+                              true         /* do_termination       */,
+                              _is_serial);
       } while (task->has_aborted() && !_cm->has_overflown());
       // If we overflow, then we do not want to restart. We instead
       // want to abort remark and do concurrent marking again.
@@ -2502,8 +2552,8 @@
     }
   }
 
-  CMRemarkTask(ConcurrentMark* cm, int active_workers) :
-    AbstractGangTask("Par Remark"), _cm(cm) {
+  CMRemarkTask(ConcurrentMark* cm, int active_workers, bool is_serial) :
+    AbstractGangTask("Par Remark"), _cm(cm), _is_serial(is_serial) {
     _cm->terminator()->reset_for_reuse(active_workers);
   }
 };
@@ -2524,30 +2574,40 @@
       active_workers = (uint) ParallelGCThreads;
       g1h->workers()->set_active_workers(active_workers);
     }
-    set_phase(active_workers, false /* concurrent */);
+    set_concurrency_and_phase(active_workers, false /* concurrent */);
     // Leave _parallel_marking_threads at it's
     // value originally calculated in the ConcurrentMark
     // constructor and pass values of the active workers
     // through the gang in the task.
 
-    CMRemarkTask remarkTask(this, active_workers);
+    CMRemarkTask remarkTask(this, active_workers, false /* is_serial */);
+    // We will start all available threads, even if we decide that the
+    // active_workers will be fewer. The extra ones will just bail out
+    // immediately.
     g1h->set_par_threads(active_workers);
     g1h->workers()->run_task(&remarkTask);
     g1h->set_par_threads(0);
   } else {
     G1CollectedHeap::StrongRootsScope srs(g1h);
-    // this is remark, so we'll use up all available threads
     uint active_workers = 1;
-    set_phase(active_workers, false /* concurrent */);
-
-    CMRemarkTask remarkTask(this, active_workers);
-    // We will start all available threads, even if we decide that the
-    // active_workers will be fewer. The extra ones will just bail out
-    // immediately.
+    set_concurrency_and_phase(active_workers, false /* concurrent */);
+
+    // Note - if there's no work gang then the VMThread will be
+    // the thread to execute the remark - serially. We have
+    // to pass true for the is_serial parameter so that
+    // CMTask::do_marking_step() doesn't enter the sync
+    // barriers in the event of an overflow. Doing so will
+    // cause an assert that the current thread is not a
+    // concurrent GC thread.
+    CMRemarkTask remarkTask(this, active_workers, true /* is_serial*/);
     remarkTask.work(0);
   }
   SATBMarkQueueSet& satb_mq_set = JavaThread::satb_mark_queue_set();
-  guarantee(satb_mq_set.completed_buffers_num() == 0, "invariant");
+  guarantee(has_overflown() ||
+            satb_mq_set.completed_buffers_num() == 0,
+            err_msg("Invariant: has_overflown = %s, num buffers = %d",
+                    BOOL_TO_STR(has_overflown()),
+                    satb_mq_set.completed_buffers_num()));
 
   print_stats();
 }
@@ -3854,8 +3914,8 @@
 
 /*****************************************************************************
 
-    The do_marking_step(time_target_ms) method is the building block
-    of the parallel marking framework. It can be called in parallel
+    The do_marking_step(time_target_ms, ...) method is the building
+    block of the parallel marking framework. It can be called in parallel
     with other invocations of do_marking_step() on different tasks
     (but only one per task, obviously) and concurrently with the
     mutator threads, or during remark, hence it eliminates the need
@@ -3865,7 +3925,7 @@
     pauses too, since do_marking_step() ensures that it aborts before
     it needs to yield.
 
-    The data structures that is uses to do marking work are the
+    The data structures that it uses to do marking work are the
     following:
 
       (1) Marking Bitmap. If there are gray objects that appear only
@@ -3914,7 +3974,7 @@
       (2) When a global overflow (on the global stack) has been
       triggered. Before the task aborts, it will actually sync up with
       the other tasks to ensure that all the marking data structures
-      (local queues, stacks, fingers etc.)  are re-initialised so that
+      (local queues, stacks, fingers etc.)  are re-initialized so that
       when do_marking_step() completes, the marking phase can
       immediately restart.
 
@@ -3951,11 +4011,25 @@
     place, it was natural to piggy-back all the other conditions on it
     too and not constantly check them throughout the code.
 
+    If do_termination is true then do_marking_step will enter its
+    termination protocol.
+
+    The value of is_serial must be true when do_marking_step is being
+    called serially (i.e. by the VMThread) and do_marking_step should
+    skip any synchronization in the termination and overflow code.
+    Examples include the serial remark code and the serial reference
+    processing closures.
+
+    The value of is_serial must be false when do_marking_step is
+    being called by any of the worker threads in a work gang.
+    Examples include the concurrent marking code (CMMarkingTask),
+    the MT remark code, and the MT reference processing closures.
+
  *****************************************************************************/
 
 void CMTask::do_marking_step(double time_target_ms,
-                             bool do_stealing,
-                             bool do_termination) {
+                             bool do_termination,
+                             bool is_serial) {
   assert(time_target_ms >= 1.0, "minimum granularity is 1ms");
   assert(concurrent() == _cm->concurrent(), "they should be the same");
 
@@ -3976,6 +4050,12 @@
   _start_time_ms = os::elapsedVTime() * 1000.0;
   statsOnly( _interval_start_time_ms = _start_time_ms );
 
+  // If do_stealing is true then do_marking_step will attempt to
+  // steal work from the other CMTasks. It only makes sense to
+  // enable stealing when the termination protocol is enabled
+  // and do_marking_step() is not being called serially.
+  bool do_stealing = do_termination && !is_serial;
+
   double diff_prediction_ms =
     g1_policy->get_new_prediction(&_marking_step_diffs_ms);
   _time_target_ms = time_target_ms - diff_prediction_ms;
@@ -4237,10 +4317,12 @@
     }
 
     _termination_start_time_ms = os::elapsedVTime() * 1000.0;
+
     // The CMTask class also extends the TerminatorTerminator class,
     // hence its should_exit_termination() method will also decide
     // whether to exit the termination protocol or not.
-    bool finished = _cm->terminator()->offer_termination(this);
+    bool finished = (is_serial ||
+                     _cm->terminator()->offer_termination(this));
     double termination_end_time_ms = os::elapsedVTime() * 1000.0;
     _termination_time_ms +=
       termination_end_time_ms - _termination_start_time_ms;
@@ -4320,20 +4402,28 @@
         gclog_or_tty->print_cr("[%u] detected overflow", _worker_id);
       }
 
-      _cm->enter_first_sync_barrier(_worker_id);
-      // When we exit this sync barrier we know that all tasks have
-      // stopped doing marking work. So, it's now safe to
-      // re-initialise our data structures. At the end of this method,
-      // task 0 will clear the global data structures.
+      if (!is_serial) {
+        // We only need to enter the sync barrier if being called
+        // from a parallel context
+        _cm->enter_first_sync_barrier(_worker_id);
+
+        // When we exit this sync barrier we know that all tasks have
+        // stopped doing marking work. So, it's now safe to
+        // re-initialise our data structures. At the end of this method,
+        // task 0 will clear the global data structures.
+      }
 
       statsOnly( ++_aborted_overflow );
 
       // We clear the local state of this task...
       clear_region_fields();
 
-      // ...and enter the second barrier.
-      _cm->enter_second_sync_barrier(_worker_id);
-      // At this point everything has bee re-initialised and we're
+      if (!is_serial) {
+        // ...and enter the second barrier.
+        _cm->enter_second_sync_barrier(_worker_id);
+      }
+      // At this point, if we're during the concurrent phase of
+      // marking, everything has been re-initialized and we're
       // ready to restart.
     }
 
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/gc_implementation/g1/concurrentMark.hpp
--- a/src/share/vm/gc_implementation/g1/concurrentMark.hpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/gc_implementation/g1/concurrentMark.hpp	Sun Mar 24 09:21:37 2013 +0100
@@ -166,7 +166,7 @@
 class CMMarkStack VALUE_OBJ_CLASS_SPEC {
   VirtualSpace _virtual_space;   // Underlying backing store for actual stack
   ConcurrentMark* _cm;
-  oop*   _base;        // bottom of stack
+  oop* _base;        // bottom of stack
   jint _index;       // one more than last occupied index
   jint _capacity;    // max #elements
   jint _saved_index; // value of _index saved at start of GC
@@ -491,9 +491,12 @@
   // structures are initialised to a sensible and predictable state.
   void set_non_marking_state();
 
+  // Called to indicate how many threads are currently active.
+  void set_concurrency(uint active_tasks);
+
   // It should be called to indicate which phase we're in (concurrent
   // mark or remark) and how many threads are currently active.
-  void set_phase(uint active_tasks, bool concurrent);
+  void set_concurrency_and_phase(uint active_tasks, bool concurrent);
 
   // prints all gathered CM-related statistics
   void print_stats();
@@ -1146,7 +1149,9 @@
   // trying not to exceed the given duration. However, it might exit
   // prematurely, according to some conditions (i.e. SATB buffers are
   // available for processing).
-  void do_marking_step(double target_ms, bool do_stealing, bool do_termination);
+  void do_marking_step(double target_ms,
+                       bool do_termination,
+                       bool is_serial);
 
   // These two calls start and stop the timer
   void record_start_time() {
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp
--- a/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -656,7 +656,7 @@
     tty->print_cr("[Accumulated GC generation 0 time %3.7f secs]", time);
   }
   if (TraceGen1Time) {
-    double time = PSMarkSweep::accumulated_time()->seconds();
+    double time = UseParallelOldGC ? PSParallelCompact::accumulated_time()->seconds() : PSMarkSweep::accumulated_time()->seconds();
     tty->print_cr("[Accumulated GC generation 1 time %3.7f secs]", time);
   }
 }
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/interpreter/interpreter.cpp
--- a/src/share/vm/interpreter/interpreter.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/interpreter/interpreter.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -76,7 +76,7 @@
 
   if (PrintInterpreter) {
     st->cr();
-    Disassembler::decode(code_begin(), code_end(), st, DEBUG_ONLY(_comments) NOT_DEBUG(CodeComments()));
+    Disassembler::decode(code_begin(), code_end(), st, DEBUG_ONLY(_strings) NOT_DEBUG(CodeStrings()));
   }
 }
 
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/interpreter/interpreter.hpp
--- a/src/share/vm/interpreter/interpreter.hpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/interpreter/interpreter.hpp	Sun Mar 24 09:21:37 2013 +0100
@@ -48,12 +48,12 @@
   int         _size;                             // the size in bytes
   const char* _description;                      // a description of the codelet, for debugging & printing
   Bytecodes::Code _bytecode;                     // associated bytecode if any
-  DEBUG_ONLY(CodeComments _comments;)            // Comments for annotating assembler output.
+  DEBUG_ONLY(CodeStrings _strings;)              // Comments for annotating assembler output.
 
  public:
   // Initialization/finalization
   void    initialize(int size,
-                     CodeComments& comments)     { _size = size; DEBUG_ONLY(_comments.assign(comments);) }
+                     CodeStrings& strings)       { _size = size; DEBUG_ONLY(_strings.assign(strings);) }
   void    finalize()                             { ShouldNotCallThis(); }
 
   // General info/converters
@@ -131,7 +131,7 @@
 
 
     // commit Codelet
-    AbstractInterpreter::code()->commit((*_masm)->code()->pure_insts_size(), (*_masm)->code()->comments());
+    AbstractInterpreter::code()->commit((*_masm)->code()->pure_insts_size(), (*_masm)->code()->strings());
     // make sure nobody can use _masm outside a CodeletMark lifespan
     *_masm = NULL;
   }
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/memory/genCollectedHeap.cpp
--- a/src/share/vm/memory/genCollectedHeap.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/memory/genCollectedHeap.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -554,6 +554,8 @@
     }
 
     if (complete) {
+      // Delete metaspaces for unloaded class loaders and clean up loader_data graph
+      ClassLoaderDataGraph::purge();
       // Resize the metaspace capacity after full collections
       MetaspaceGC::compute_new_size();
       update_full_collections_completed();
@@ -564,11 +566,6 @@
 
     gc_epilogue(complete);
 
-    // Delete metaspaces for unloaded class loaders and clean up loader_data graph
-    if (complete) {
-      ClassLoaderDataGraph::purge();
-    }
-
     if (must_restore_marks_for_biased_locking) {
       BiasedLocking::restore_marks();
     }
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/memory/metaspace.cpp
--- a/src/share/vm/memory/metaspace.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/memory/metaspace.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -1092,25 +1092,24 @@
 }
 
 bool MetaspaceGC::should_expand(VirtualSpaceList* vsl, size_t word_size) {
+  // If the user wants a limit, impose one.
+  if (!FLAG_IS_DEFAULT(MaxMetaspaceSize) &&
+      MetaspaceAux::reserved_in_bytes() >= MaxMetaspaceSize) {
+    return false;
+  }
 
   // Class virtual space should always be expanded.  Call GC for the other
   // metadata virtual space.
   if (vsl == Metaspace::class_space_list()) return true;
 
-  // If the user wants a limit, impose one.
-  size_t max_metaspace_size_words = MaxMetaspaceSize / BytesPerWord;
-  size_t metaspace_size_words = MetaspaceSize / BytesPerWord;
-  if (!FLAG_IS_DEFAULT(MaxMetaspaceSize) &&
-      vsl->capacity_words_sum() >= max_metaspace_size_words) {
-    return false;
-  }
-
   // If this is part of an allocation after a GC, expand
   // unconditionally.
   if(MetaspaceGC::expand_after_GC()) {
     return true;
   }
 
+  size_t metaspace_size_words = MetaspaceSize / BytesPerWord;
+
   // If the capacity is below the minimum capacity, allow the
   // expansion.  Also set the high-water-mark (capacity_until_GC)
   // to that minimum capacity so that a GC will not be induced
@@ -1300,8 +1299,7 @@
       gclog_or_tty->print_cr("  metaspace HWM: %.1fK", new_capacity_until_GC / (double) K);
     }
   }
-  assert(vsl->used_bytes_sum() == used_after_gc &&
-         used_after_gc <= vsl->capacity_bytes_sum(),
+  assert(used_after_gc <= vsl->capacity_bytes_sum(),
          "sanity check");
 
 }
@@ -1961,6 +1959,9 @@
 }
 
 SpaceManager::~SpaceManager() {
+  // This call this->_lock which can't be done while holding expand_lock()
+  const size_t in_use_before = sum_capacity_in_chunks_in_use();
+
   MutexLockerEx fcl(SpaceManager::expand_lock(),
                     Mutex::_no_safepoint_check_flag);
 
@@ -1978,7 +1979,7 @@
 
   // Have to update before the chunks_in_use lists are emptied
   // below.
-  chunk_manager->inc_free_chunks_total(sum_capacity_in_chunks_in_use(),
+  chunk_manager->inc_free_chunks_total(in_use_before,
                                        sum_count_in_chunks_in_use());
 
   // Add all the chunks in use by this space manager
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/memory/sharedHeap.cpp
--- a/src/share/vm/memory/sharedHeap.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/memory/sharedHeap.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -178,7 +178,7 @@
       SystemDictionary::always_strong_oops_do(roots);
       ClassLoaderDataGraph::always_strong_oops_do(roots, klass_closure, !is_scavenging);
     } else {
-      ShouldNotReachHere2("We should always have selected either SO_AllClasses or SO_SystemClasses");
+      fatal("We should always have selected either SO_AllClasses or SO_SystemClasses");
     }
   }
 
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/oops/constantPool.cpp
--- a/src/share/vm/oops/constantPool.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/oops/constantPool.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -1852,6 +1852,7 @@
   switch (tag_at(index).value()) {
     case JVM_CONSTANT_Class :
       { Klass* k = klass_at(index, CATCH);
+        guarantee(k != NULL, "need klass");
         k->print_value_on(st);
         st->print(" {0x%lx}", (address)k);
       }
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/oops/fieldInfo.hpp
--- a/src/share/vm/oops/fieldInfo.hpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/oops/fieldInfo.hpp	Sun Mar 24 09:21:37 2013 +0100
@@ -108,11 +108,11 @@
         return build_int_from_shorts(_shorts[low_packed_offset], _shorts[high_packed_offset]) >> FIELDINFO_TAG_SIZE;
 #ifndef PRODUCT
       case FIELDINFO_TAG_TYPE_PLAIN:
-        ShouldNotReachHere2("Asking offset for the plain type field");
+        fatal("Asking offset for the plain type field");
       case FIELDINFO_TAG_TYPE_CONTENDED:
-        ShouldNotReachHere2("Asking offset for the contended type field");
+        fatal("Asking offset for the contended type field");
       case FIELDINFO_TAG_BLANK:
-        ShouldNotReachHere2("Asking offset for the blank field");
+        fatal("Asking offset for the blank field");
 #endif
     }
     ShouldNotReachHere();
@@ -128,9 +128,9 @@
         return true;
 #ifndef PRODUCT
       case FIELDINFO_TAG_OFFSET:
-        ShouldNotReachHere2("Asking contended flag for the field with offset");
+        fatal("Asking contended flag for the field with offset");
       case FIELDINFO_TAG_BLANK:
-        ShouldNotReachHere2("Asking contended flag for the blank field");
+        fatal("Asking contended flag for the blank field");
 #endif
     }
     ShouldNotReachHere();
@@ -146,9 +146,9 @@
         return _shorts[high_packed_offset];
 #ifndef PRODUCT
       case FIELDINFO_TAG_OFFSET:
-        ShouldNotReachHere2("Asking the contended group for the field with offset");
+        fatal("Asking the contended group for the field with offset");
       case FIELDINFO_TAG_BLANK:
-        ShouldNotReachHere2("Asking the contended group for the blank field");
+        fatal("Asking the contended group for the blank field");
 #endif
     }
     ShouldNotReachHere();
@@ -163,9 +163,9 @@
         return (lo >> FIELDINFO_TAG_SIZE);
 #ifndef PRODUCT
       case FIELDINFO_TAG_OFFSET:
-        ShouldNotReachHere2("Asking the field type for field with offset");
+        fatal("Asking the field type for field with offset");
       case FIELDINFO_TAG_BLANK:
-        ShouldNotReachHere2("Asking the field type for the blank field");
+        fatal("Asking the field type for the blank field");
 #endif
     }
     ShouldNotReachHere();
@@ -211,7 +211,7 @@
       case FIELDINFO_TAG_TYPE_PLAIN:
       case FIELDINFO_TAG_TYPE_CONTENDED:
       case FIELDINFO_TAG_OFFSET:
-        ShouldNotReachHere2("Setting the field type with overwriting");
+        fatal("Setting the field type with overwriting");
 #endif
     }
     ShouldNotReachHere();
@@ -226,11 +226,11 @@
         return;
 #ifndef PRODUCT
       case FIELDINFO_TAG_TYPE_CONTENDED:
-        ShouldNotReachHere2("Overwriting contended group");
+        fatal("Overwriting contended group");
       case FIELDINFO_TAG_BLANK:
-        ShouldNotReachHere2("Setting contended group for the blank field");
+        fatal("Setting contended group for the blank field");
       case FIELDINFO_TAG_OFFSET:
-        ShouldNotReachHere2("Setting contended group for field with offset");
+        fatal("Setting contended group for field with offset");
 #endif
     }
     ShouldNotReachHere();
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/oops/generateOopMap.cpp
--- a/src/share/vm/oops/generateOopMap.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/oops/generateOopMap.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -762,6 +762,7 @@
 // monitor matching is purely informational and doesn't say anything
 // about the correctness of the code.
 void GenerateOopMap::merge_state_into_bb(BasicBlock *bb) {
+  guarantee(bb != NULL, "null basicblock");
   assert(bb->is_alive(), "merging state into a dead basicblock");
 
   if (_stack_top == bb->_stack_top) {
@@ -1189,6 +1190,7 @@
 
       if (start_pc <= bci && bci < end_pc) {
         BasicBlock *excBB = get_basic_block_at(handler_pc);
+        guarantee(excBB != NULL, "no basic block for exception");
         CellTypeState *excStk = excBB->stack();
         CellTypeState *cOpStck = stack();
         CellTypeState cOpStck_0 = cOpStck[0];
@@ -1803,6 +1805,7 @@
     // possibility that this bytecode will throw an
     // exception.
     BasicBlock* bb = get_basic_block_containing(bci);
+    guarantee(bb != NULL, "no basic block for bci");
     bb->set_changed(true);
     bb->_monitor_top = bad_monitors;
 
@@ -2190,6 +2193,7 @@
 
   // Find basicblock and report results
   BasicBlock* bb = get_basic_block_containing(bci);
+  guarantee(bb != NULL, "no basic block for bci");
   assert(bb->is_reachable(), "getting result from unreachable basicblock");
   bb->set_changed(true);
   interp_bb(bb);
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/opto/bytecodeInfo.cpp
--- a/src/share/vm/opto/bytecodeInfo.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/opto/bytecodeInfo.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -157,9 +157,10 @@
   } else {
     // Not hot.  Check for medium-sized pre-existing nmethod at cold sites.
     if (callee_method->has_compiled_code() &&
-        callee_method->instructions_size() > inline_small_code_size)
+        callee_method->instructions_size() > inline_small_code_size) {
       set_msg("already compiled into a medium method");
       return false;
+    }
   }
   if (size > max_inline_size) {
     if (max_inline_size > default_max_inline_size) {
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/opto/loopTransform.cpp
--- a/src/share/vm/opto/loopTransform.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/opto/loopTransform.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -888,6 +888,7 @@
   CountedLoopNode *main_head = loop->_head->as_CountedLoop();
   assert( main_head->is_normal_loop(), "" );
   CountedLoopEndNode *main_end = main_head->loopexit();
+  guarantee(main_end != NULL, "no loop exit node");
   assert( main_end->outcnt() == 2, "1 true, 1 false path only" );
   uint dd_main_head = dom_depth(main_head);
   uint max = main_head->outcnt();
@@ -2554,13 +2555,16 @@
   ok.set(store->_idx);
   ok.set(store->in(MemNode::Memory)->_idx);
 
+  CountedLoopEndNode* loop_exit = head->loopexit();
+  guarantee(loop_exit != NULL, "no loop exit node");
+
   // Loop structure is ok
   ok.set(head->_idx);
-  ok.set(head->loopexit()->_idx);
+  ok.set(loop_exit->_idx);
   ok.set(head->phi()->_idx);
   ok.set(head->incr()->_idx);
-  ok.set(head->loopexit()->cmp_node()->_idx);
-  ok.set(head->loopexit()->in(1)->_idx);
+  ok.set(loop_exit->cmp_node()->_idx);
+  ok.set(loop_exit->in(1)->_idx);
 
   // Address elements are ok
   if (con)   ok.set(con->_idx);
@@ -2572,7 +2576,7 @@
     if (n->outcnt() == 0) continue; // Ignore dead
     if (ok.test(n->_idx)) continue;
     // Backedge projection is ok
-    if (n->is_IfTrue() && n->in(0) == head->loopexit()) continue;
+    if (n->is_IfTrue() && n->in(0) == loop_exit) continue;
     if (!n->is_AddP()) {
       msg = "unhandled node";
       msg_node = n;
@@ -2585,7 +2589,7 @@
     Node* n = lpt->_body.at(i);
     // These values can be replaced with other nodes if they are used
     // outside the loop.
-    if (n == store || n == head->loopexit() || n == head->incr() || n == store->in(MemNode::Memory)) continue;
+    if (n == store || n == loop_exit || n == head->incr() || n == store->in(MemNode::Memory)) continue;
     for (SimpleDUIterator iter(n); iter.has_next(); iter.next()) {
       Node* use = iter.get();
       if (!lpt->_body.contains(use)) {
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/opto/loopnode.hpp
--- a/src/share/vm/opto/loopnode.hpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/opto/loopnode.hpp	Sun Mar 24 09:21:37 2013 +0100
@@ -603,7 +603,10 @@
   }
 
 public:
-  bool has_node( Node* n ) const { return _nodes[n->_idx] != NULL; }
+  bool has_node( Node* n ) const {
+    guarantee(n != NULL, "No Node.");
+    return _nodes[n->_idx] != NULL;
+  }
   // check if transform created new nodes that need _ctrl recorded
   Node *get_late_ctrl( Node *n, Node *early );
   Node *get_early_ctrl( Node *n );
@@ -737,7 +740,8 @@
     return n;
   }
   uint dom_depth(Node* d) const {
-    assert(d->_idx < _idom_size, "");
+    guarantee(d != NULL, "Null dominator info.");
+    guarantee(d->_idx < _idom_size, "");
     return _dom_depth[d->_idx];
   }
   void set_idom(Node* d, Node* n, uint dom_depth);
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/opto/loopopts.cpp
--- a/src/share/vm/opto/loopopts.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/opto/loopopts.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -232,7 +232,11 @@
   // Loop predicates may have depending checks which should not
   // be skipped. For example, range check predicate has two checks
   // for lower and upper bounds.
-  ProjNode* unc_proj = iff->as_If()->proj_out(1 - dp->as_Proj()->_con)->as_Proj();
+  if (dp == NULL)
+    return;
+
+  ProjNode* dp_proj  = dp->as_Proj();
+  ProjNode* unc_proj = iff->as_If()->proj_out(1 - dp_proj->_con)->as_Proj();
   if (exclude_loop_predicate &&
       is_uncommon_trap_proj(unc_proj, Deoptimization::Reason_predicate))
     return; // Let IGVN transformation change control dependence.
@@ -866,8 +870,11 @@
 
     // Now split the bool up thru the phi
     Node *bolphi = split_thru_phi( bol, n_ctrl, -1 );
+    guarantee(bolphi != NULL, "null boolean phi node");
+
     _igvn.replace_node( bol, bolphi );
     assert( iff->in(1) == bolphi, "" );
+
     if( bolphi->Value(&_igvn)->singleton() )
       return;
 
@@ -1628,6 +1635,7 @@
 //------------------------------ short_circuit_if -------------------------------------
 // Force the iff control output to be the live_proj
 Node* PhaseIdealLoop::short_circuit_if(IfNode* iff, ProjNode* live_proj) {
+  guarantee(live_proj != NULL, "null projection");
   int proj_con = live_proj->_con;
   assert(proj_con == 0 || proj_con == 1, "false or true projection");
   Node *con = _igvn.intcon(proj_con);
@@ -1686,6 +1694,7 @@
   set_idom(proj, new_if, ddepth);
 
   ProjNode* new_exit = proj_clone(other_proj, new_if)->as_Proj();
+  guarantee(new_exit != NULL, "null exit node");
   register_node(new_exit, get_loop(other_proj), new_if, ddepth);
 
   return new_exit;
@@ -1793,7 +1802,10 @@
   int stride = stride_of_possible_iv(if_cmpu);
   if (stride == 0) return NULL;
 
-  ProjNode* lp_continue = stay_in_loop(if_cmpu, loop)->as_Proj();
+  Node* lp_proj = stay_in_loop(if_cmpu, loop);
+  guarantee(lp_proj != NULL, "null loop node");
+
+  ProjNode* lp_continue = lp_proj->as_Proj();
   ProjNode* lp_exit     = if_cmpu->proj_out(!lp_continue->is_IfTrue())->as_Proj();
 
   Node* limit = NULL;
@@ -1805,6 +1817,7 @@
   }
   // Create a new region on the exit path
   RegionNode* reg = insert_region_before_proj(lp_exit);
+  guarantee(reg != NULL, "null region node");
 
   // Clone the if-cmpu-true-false using a signed compare
   BoolTest::mask rel_i = stride > 0 ? bol->_test._test : BoolTest::ge;
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/opto/output.cpp
--- a/src/share/vm/opto/output.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/opto/output.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -2518,6 +2518,7 @@
     // Schedule the remaining instructions in the block
     while ( _available.size() > 0 ) {
       Node *n = ChooseNodeToBundle();
+      guarantee(n != NULL, "no nodes available");
       AddNodeToBundle(n,bb);
     }
 
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/opto/type.cpp
--- a/src/share/vm/opto/type.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/opto/type.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -4193,6 +4193,7 @@
   bool    xk = klass_is_exact();
   //return TypeInstPtr::make(TypePtr::NotNull, k, xk, NULL, 0);
   const TypeOopPtr* toop = TypeOopPtr::make_from_klass_raw(k);
+  guarantee(toop != NULL, "need type for given klass");
   toop = toop->cast_to_ptr_type(TypePtr::NotNull)->is_oopptr();
   return toop->cast_to_exactness(xk)->is_oopptr();
 }
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/prims/jni.cpp
--- a/src/share/vm/prims/jni.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/prims/jni.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2012 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -92,7 +92,7 @@
 # include "os_bsd.inline.hpp"
 #endif
 
-static jint CurrentVersion = JNI_VERSION_1_6;
+static jint CurrentVersion = JNI_VERSION_1_8;
 
 
 // The DT_RETURN_MARK macros create a scoped object to fire the dtrace
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/prims/jni.h
--- a/src/share/vm/prims/jni.h	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/prims/jni.h	Sun Mar 24 09:21:37 2013 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2013, 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
@@ -1951,6 +1951,7 @@
 #define JNI_VERSION_1_2 0x00010002
 #define JNI_VERSION_1_4 0x00010004
 #define JNI_VERSION_1_6 0x00010006
+#define JNI_VERSION_1_8 0x00010008
 
 #ifdef __cplusplus
 } /* extern "C" */
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/runtime/stubCodeGenerator.cpp
--- a/src/share/vm/runtime/stubCodeGenerator.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/runtime/stubCodeGenerator.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -87,7 +87,7 @@
     CodeBuffer* cbuf = _masm->code();
     CodeBlob*   blob = CodeCache::find_blob_unsafe(cbuf->insts()->start());
     if (blob != NULL) {
-      blob->set_comments(cbuf->comments());
+      blob->set_strings(cbuf->strings());
     }
     bool saw_first = false;
     StubCodeDesc* toprint[1000];
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/runtime/thread.cpp
--- a/src/share/vm/runtime/thread.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/runtime/thread.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -4061,6 +4061,7 @@
   if (version == JNI_VERSION_1_2) return JNI_TRUE;
   if (version == JNI_VERSION_1_4) return JNI_TRUE;
   if (version == JNI_VERSION_1_6) return JNI_TRUE;
+  if (version == JNI_VERSION_1_8) return JNI_TRUE;
   return JNI_FALSE;
 }
 
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/runtime/vm_version.cpp
--- a/src/share/vm/runtime/vm_version.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/runtime/vm_version.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -211,6 +211,10 @@
         #define HOTSPOT_BUILD_COMPILER "MS VC++ 8.0 (VS2005)"
       #elif _MSC_VER == 1500
         #define HOTSPOT_BUILD_COMPILER "MS VC++ 9.0 (VS2008)"
+      #elif _MSC_VER == 1600
+        #define HOTSPOT_BUILD_COMPILER "MS VC++ 10.0 (VS2010)"
+      #elif _MSC_VER == 1700
+        #define HOTSPOT_BUILD_COMPILER "MS VC++ 11.0 (VS2012)"
       #else
         #define HOTSPOT_BUILD_COMPILER "unknown MS VC++:" XSTR(_MSC_VER)
       #endif
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/services/memoryService.cpp
--- a/src/share/vm/services/memoryService.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/services/memoryService.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -240,6 +240,7 @@
 void MemoryService::add_generation_memory_pool(Generation* gen,
                                                MemoryManager* major_mgr,
                                                MemoryManager* minor_mgr) {
+  guarantee(gen != NULL, "No generation for memory pool");
   Generation::Name kind = gen->kind();
   int index = _pools_list->length();
 
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/utilities/debug.cpp
--- a/src/share/vm/utilities/debug.cpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/utilities/debug.cpp	Sun Mar 24 09:21:37 2013 +0100
@@ -248,10 +248,6 @@
   report_vm_error(file, line, "ShouldNotReachHere()");
 }
 
-void report_should_not_reach_here2(const char* file, int line, const char* message) {
-  report_vm_error(file, line, "ShouldNotReachHere()", message);
-}
-
 void report_unimplemented(const char* file, int line) {
   report_vm_error(file, line, "Unimplemented()");
 }
diff -r c342fbdf8a70 -r 9c8e53c7bed0 src/share/vm/utilities/debug.hpp
--- a/src/share/vm/utilities/debug.hpp	Sun Mar 24 09:11:55 2013 +0100
+++ b/src/share/vm/utilities/debug.hpp	Sun Mar 24 09:21:37 2013 +0100
@@ -192,12 +192,6 @@
   BREAKPOINT;                                                                \
 } while (0)
 
-#define ShouldNotReachHere2(message)                                         \
-do {                                                                         \
-  report_should_not_reach_here2(__FILE__, __LINE__, message);                \
-  BREAKPOINT;                                                                \
-} while (0)
-
 #define Unimplemented()                                                      \
 do {                                                                         \
   report_unimplemented(__FILE__, __LINE__);                                  \
@@ -218,7 +212,6 @@
                              const char* message);
 void report_should_not_call(const char* file, int line);
 void report_should_not_reach_here(const char* file, int line);
-void report_should_not_reach_here2(const char* file, int line, const char* message);
 void report_unimplemented(const char* file, int line);
 void report_untested(const char* file, int line, const char* message);
 
diff -r c342fbdf8a70 -r 9c8e53c7bed0 test/compiler/whitebox/CompilerWhiteBoxTest.java
--- a/test/compiler/whitebox/CompilerWhiteBoxTest.java	Sun Mar 24 09:11:55 2013 +0100
+++ b/test/compiler/whitebox/CompilerWhiteBoxTest.java	Sun Mar 24 09:21:37 2013 +0100
@@ -35,6 +35,8 @@
     protected static final Method METHOD = getMethod("method");
     protected static final int COMPILE_THRESHOLD
             = Integer.parseInt(getVMOption("CompileThreshold", "10000"));
+    protected static final boolean BACKGROUND_COMPILATION
+            = Boolean.valueOf(getVMOption("BackgroundCompilation", "true"));
 
     protected static Method getMethod(String name) {
         try {
@@ -45,11 +47,16 @@
         }
     }
 
-    protected static String getVMOption(String name, String defaultValue) {
+    protected static String getVMOption(String name) {
         String result;
         HotSpotDiagnosticMXBean diagnostic
                 = ManagementFactoryHelper.getDiagnosticMXBean();
         result = diagnostic.getVMOption(name).getValue();
+        return result;
+    }
+
+    protected static String getVMOption(String name, String defaultValue) {
+        String result = getVMOption(name);
         return result == null ? defaultValue : result;
     }
 
@@ -66,6 +73,7 @@
         } catch (Exception e) {
             System.out.printf("on exception '%s':", e.getMessage());
             printInfo(METHOD);
+            e.printStackTrace();
             throw new RuntimeException(e);
         }
         System.out.println("at test's end:");
@@ -100,6 +108,9 @@
 
     protected static void waitBackgroundCompilation(Method method)
             throws InterruptedException {
+        if (!BACKGROUND_COMPILATION) {
+            return;
+        }
         final Object obj = new Object();
         synchronized (obj) {
             for (int i = 0; i < 10; ++i) {
@@ -129,13 +140,14 @@
 
     protected final int compile() {
         int result = 0;
-        for (int i = 0; i < COMPILE_THRESHOLD; ++i) {
+        int count = Math.max(COMPILE_THRESHOLD, 150000);
+        for (int i = 0; i < count; ++i) {
             result += method();
         }
+        System.out.println("method was invoked " + count + " times");
         return result;
     }
 
-
     protected int method() {
         return 42;
     }
diff -r c342fbdf8a70 -r 9c8e53c7bed0 test/compiler/whitebox/DeoptimizeAllTest.java
--- a/test/compiler/whitebox/DeoptimizeAllTest.java	Sun Mar 24 09:11:55 2013 +0100
+++ b/test/compiler/whitebox/DeoptimizeAllTest.java	Sun Mar 24 09:21:37 2013 +0100
@@ -32,12 +32,12 @@
 public class DeoptimizeAllTest extends CompilerWhiteBoxTest {
 
     public static void main(String[] args) throws Exception {
+        // to prevent inlining #method into #compile()
+        WHITE_BOX.setDontInlineMethod(METHOD, true);
         new DeoptimizeAllTest().runTest();
     }
 
     protected void test() throws Exception {
-        // to prevent inlining #method into #compile()
-        WHITE_BOX.setDontInlineMethod(METHOD, true);
         compile();
         checkCompiled(METHOD);
         WHITE_BOX.deoptimizeAll();
diff -r c342fbdf8a70 -r 9c8e53c7bed0 test/compiler/whitebox/DeoptimizeMethodTest.java
--- a/test/compiler/whitebox/DeoptimizeMethodTest.java	Sun Mar 24 09:11:55 2013 +0100
+++ b/test/compiler/whitebox/DeoptimizeMethodTest.java	Sun Mar 24 09:21:37 2013 +0100
@@ -32,12 +32,12 @@
 public class DeoptimizeMethodTest extends CompilerWhiteBoxTest {
 
     public static void main(String[] args) throws Exception {
+        // to prevent inlining #method into #compile()
+        WHITE_BOX.setDontInlineMethod(METHOD, true);
         new DeoptimizeMethodTest().runTest();
     }
 
     protected void test() throws Exception {
-        // to prevent inlining #method into #compile()
-        WHITE_BOX.setDontInlineMethod(METHOD, true);
         compile();
         checkCompiled(METHOD);
         WHITE_BOX.deoptimizeMethod(METHOD);
diff -r c342fbdf8a70 -r 9c8e53c7bed0 test/compiler/whitebox/IsMethodCompilableTest.java
--- a/test/compiler/whitebox/IsMethodCompilableTest.java	Sun Mar 24 09:11:55 2013 +0100
+++ b/test/compiler/whitebox/IsMethodCompilableTest.java	Sun Mar 24 09:21:37 2013 +0100
@@ -44,6 +44,8 @@
     }
 
     public static void main(String[] args) throws Exception {
+        // to prevent inlining #method into #compile()
+        WHITE_BOX.setDontInlineMethod(METHOD, true);
         new IsMethodCompilableTest().runTest();
     }
 
@@ -58,8 +60,6 @@
                     "Warning: test is not applicable if PerMethodRecompilationCutoff == Inf");
             return;
         }
-        // to prevent inlining #method into #compile()
-        WHITE_BOX.setDontInlineMethod(METHOD, true);
         boolean madeNotCompilable = false;
 
         for (long i = 0; i < PER_METHOD_RECOMPILATION_CUTOFF; ++i) {
diff -r c342fbdf8a70 -r 9c8e53c7bed0 test/compiler/whitebox/MakeMethodNotCompilableTest.java
--- a/test/compiler/whitebox/MakeMethodNotCompilableTest.java	Sun Mar 24 09:11:55 2013 +0100
+++ b/test/compiler/whitebox/MakeMethodNotCompilableTest.java	Sun Mar 24 09:21:37 2013 +0100
@@ -32,6 +32,8 @@
 public class MakeMethodNotCompilableTest extends CompilerWhiteBoxTest {
 
     public static void main(String[] args) throws Exception {
+        // to prevent inlining #method into #compile()
+        WHITE_BOX.setDontInlineMethod(METHOD, true);
         new MakeMethodNotCompilableTest().runTest();
     }