# HG changeset patch
# User amurillo
# Date 1336165830 25200
# Node ID 6123dd756c56e4d695af3a4762bfcc2757a7fe00
# Parent  b3a91113026c99b0da010d41055719ab0d8938f0# Parent  5898965fd40761cf2e4128a14e6cc157642b7370
Merge

diff -r b3a91113026c -r 6123dd756c56 hotspot/agent/src/os/linux/ps_core.c
--- a/hotspot/agent/src/os/linux/ps_core.c	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/agent/src/os/linux/ps_core.c	Fri May 04 14:10:30 2012 -0700
@@ -440,7 +440,7 @@
       int j = 0;
       print_debug("---- sorted virtual address map ----\n");
       for (j = 0; j < ph->core->num_maps; j++) {
-        print_debug("base = 0x%lx\tsize = %zd\n", ph->core->map_array[j]->vaddr,
+        print_debug("base = 0x%lx\tsize = %zu\n", ph->core->map_array[j]->vaddr,
                                          ph->core->map_array[j]->memsz);
       }
    }
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/Makefile
--- a/hotspot/make/Makefile	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/Makefile	Fri May 04 14:10:30 2012 -0700
@@ -136,31 +136,36 @@
 ifeq ($(OSNAME),windows)
 	@$(ECHO) "No docs ($(VM_TARGET)) for windows"
 else
+# We specify 'BUILD_FLAVOR=product' so that the proper
+# ENABLE_FULL_DEBUG_SYMBOLS value is used.
 	$(CD) $(OUTPUTDIR); \
 	    $(MAKE) -f $(ABS_OS_MAKEFILE) \
-		      $(MAKE_ARGS) docs
+		      $(MAKE_ARGS) BUILD_FLAVOR=product docs
 endif
 
 # Build variation of hotspot
 $(C1_VM_TARGETS):
 	$(CD) $(GAMMADIR)/make; \
-	$(MAKE) VM_TARGET=$@ generic_build1 $(ALT_OUT)
+	$(MAKE) BUILD_FLAVOR=$(@:%1=%) VM_TARGET=$@ generic_build1 $(ALT_OUT)
 
 $(C2_VM_TARGETS):
 	$(CD) $(GAMMADIR)/make; \
-	$(MAKE) VM_TARGET=$@ generic_build2 $(ALT_OUT)
+	$(MAKE) BUILD_FLAVOR=$@ VM_TARGET=$@ generic_build2 $(ALT_OUT)
 
 $(KERNEL_VM_TARGETS):
 	$(CD) $(GAMMADIR)/make; \
-	$(MAKE) VM_TARGET=$@ generic_buildkernel $(ALT_OUT)
+	$(MAKE) BUILD_FLAVOR=$(@:%kernel=%) VM_TARGET=$@ \
+	  generic_buildkernel $(ALT_OUT)
 
 $(ZERO_VM_TARGETS):
 	$(CD) $(GAMMADIR)/make; \
-	$(MAKE) VM_TARGET=$@ generic_buildzero $(ALT_OUT)
+	$(MAKE) BUILD_FLAVOR=$(@:%zero=%) VM_TARGET=$@ \
+	  generic_buildzero $(ALT_OUT)
 
 $(SHARK_VM_TARGETS):
 	$(CD) $(GAMMADIR)/make; \
-	$(MAKE) VM_TARGET=$@ generic_buildshark $(ALT_OUT)
+	$(MAKE) BUILD_FLAVOR=$(@:%shark=%) VM_TARGET=$@ \
+	  generic_buildshark $(ALT_OUT)
 
 # Build compiler1 (client) rule, different for platforms
 generic_build1:
@@ -237,25 +242,37 @@
 # Export file rule
 generic_export: $(EXPORT_LIST)
 export_product:
-	$(MAKE) VM_SUBDIR=product                            generic_export
+	$(MAKE) BUILD_FLAVOR=$(@:export_%=%) VM_SUBDIR=$(@:export_%=%) \
+          generic_export
 export_fastdebug:
-	$(MAKE) VM_SUBDIR=fastdebug EXPORT_SUBDIR=/fastdebug generic_export
+	$(MAKE) BUILD_FLAVOR=$(@:export_%=%) VM_SUBDIR=$(@:export_%=%) \
+	  EXPORT_SUBDIR=/$(@:export_%=%) \
+	  generic_export
 export_debug:
-	$(MAKE) VM_SUBDIR=${VM_DEBUG} EXPORT_SUBDIR=/debug   generic_export
+	$(MAKE) BUILD_FLAVOR=$(@:export_%=%) VM_SUBDIR=${VM_DEBUG} \
+	  EXPORT_SUBDIR=/$(@:export_%=%) \
+	  generic_export
 export_optimized:
-	$(MAKE) VM_SUBDIR=optimized EXPORT_SUBDIR=/optimized generic_export
+	$(MAKE) BUILD_FLAVOR=$(@:export_%=%) VM_SUBDIR=$(@:export_%=%) \
+	  EXPORT_SUBDIR=/$(@:export_%=%) \
+	  generic_export
 export_product_jdk::
-	$(MAKE) ALT_EXPORT_PATH=$(JDK_IMAGE_DIR) \
-		VM_SUBDIR=product                            generic_export
+	$(MAKE) BUILD_FLAVOR=$(@:export_%_jdk=%) \
+	  VM_SUBDIR=$(@:export_%_jdk=%) ALT_EXPORT_PATH=$(JDK_IMAGE_DIR) \
+	  generic_export
 export_optimized_jdk::
-	$(MAKE) ALT_EXPORT_PATH=$(JDK_IMAGE_DIR) \
-		VM_SUBDIR=optimized                          generic_export
+	$(MAKE) BUILD_FLAVOR=$(@:export_%_jdk=%) \
+	  VM_SUBDIR=$(@:export_%_jdk=%) ALT_EXPORT_PATH=$(JDK_IMAGE_DIR) \
+	  generic_export
 export_fastdebug_jdk::
-	$(MAKE) ALT_EXPORT_PATH=$(JDK_IMAGE_DIR)/fastdebug \
-		VM_SUBDIR=fastdebug                          generic_export
+	$(MAKE) BUILD_FLAVOR=$(@:export_%_jdk=%) \
+	  VM_SUBDIR=$(@:export_%_jdk=%)  \
+	  ALT_EXPORT_PATH=$(JDK_IMAGE_DIR)/$(@:export_%_jdk=%) \
+	  generic_export
 export_debug_jdk::
-	$(MAKE) ALT_EXPORT_PATH=$(JDK_IMAGE_DIR)/debug \
-		VM_SUBDIR=${VM_DEBUG}                        generic_export
+	$(MAKE) BUILD_FLAVOR=$(@:export_%_jdk=%) VM_SUBDIR=${VM_DEBUG} \
+	  ALT_EXPORT_PATH=$(JDK_IMAGE_DIR)/$(@:export_%_jdk=%) \
+	  generic_export
 
 # Export file copy rules
 XUSAGE=$(HS_SRC_DIR)/share/vm/Xusage.txt
@@ -300,6 +317,8 @@
 	$(install-file)
 
 # Other libraries (like SA)
+$(EXPORT_JRE_BIN_DIR)/%.diz: $(MISC_DIR)/%.diz
+	$(install-file)
 $(EXPORT_JRE_BIN_DIR)/%.dll: $(MISC_DIR)/%.dll
 	$(install-file)
 $(EXPORT_JRE_BIN_DIR)/%.pdb: $(MISC_DIR)/%.pdb
@@ -308,6 +327,8 @@
 	$(install-file)
 
 # Client files always come from C1 area
+$(EXPORT_CLIENT_DIR)/%.diz:  $(C1_DIR)/%.diz
+	$(install-file)
 $(EXPORT_CLIENT_DIR)/%.dll:  $(C1_DIR)/%.dll
 	$(install-file)
 $(EXPORT_CLIENT_DIR)/%.pdb:  $(C1_DIR)/%.pdb
@@ -316,6 +337,8 @@
 	$(install-file)
 
 # Server files always come from C2 area
+$(EXPORT_SERVER_DIR)/%.diz:  $(C2_DIR)/%.diz
+	$(install-file)
 $(EXPORT_SERVER_DIR)/%.dll:  $(C2_DIR)/%.dll
 	$(install-file)
 $(EXPORT_SERVER_DIR)/%.pdb:  $(C2_DIR)/%.pdb
@@ -324,6 +347,8 @@
 	$(install-file)
 
 # Kernel files always come from kernel area
+$(EXPORT_KERNEL_DIR)/%.diz:  $(KERNEL_DIR)/%.diz
+	$(install-file)
 $(EXPORT_KERNEL_DIR)/%.dll:  $(KERNEL_DIR)/%.dll
 	$(install-file)
 $(EXPORT_KERNEL_DIR)/%.pdb:  $(KERNEL_DIR)/%.pdb
@@ -347,6 +372,12 @@
 		$(install-file)
         $(EXPORT_SERVER_DIR)/64/%.debuginfo:    		$(C2_DIR)/%.debuginfo
 		$(install-file)
+        $(EXPORT_JRE_LIB_ARCH_DIR)/%.diz: 			$(C2_DIR)/%.diz
+		$(install-file)
+        $(EXPORT_SERVER_DIR)/%.diz:       			$(C2_DIR)/%.diz
+		$(install-file)
+        $(EXPORT_SERVER_DIR)/64/%.diz:    			$(C2_DIR)/%.diz
+		$(install-file)
     endif
     ifeq ($(JVM_VARIANT_CLIENT), true)
         $(EXPORT_JRE_LIB_ARCH_DIR)/%.$(LIBRARY_SUFFIX): $(C1_DIR)/%.$(LIBRARY_SUFFIX)
@@ -361,6 +392,12 @@
 		$(install-file)
         $(EXPORT_CLIENT_DIR)/64/%.debuginfo:    		$(C1_DIR)/%.debuginfo
 		$(install-file)
+        $(EXPORT_JRE_LIB_ARCH_DIR)/%.diz: 			$(C1_DIR)/%.diz
+		$(install-file)
+        $(EXPORT_CLIENT_DIR)/%.diz:       			$(C1_DIR)/%.diz
+		$(install-file)
+        $(EXPORT_CLIENT_DIR)/64/%.diz:    			$(C1_DIR)/%.diz
+		$(install-file)
     endif
     ifeq ($(JVM_VARIANT_ZEROSHARK), true)
         $(EXPORT_JRE_LIB_ARCH_DIR)/%.$(LIBRARY_SUFFIX): $(SHARK_DIR)/%.$(LIBRARY_SUFFIX)
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/hotspot_version
--- a/hotspot/make/hotspot_version	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/hotspot_version	Fri May 04 14:10:30 2012 -0700
@@ -35,7 +35,7 @@
 
 HS_MAJOR_VER=24
 HS_MINOR_VER=0
-HS_BUILD_NUMBER=08
+HS_BUILD_NUMBER=09
 
 JDK_MAJOR_VER=1
 JDK_MINOR_VER=8
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/linux/Makefile
--- a/hotspot/make/linux/Makefile	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/linux/Makefile	Fri May 04 14:10:30 2012 -0700
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -210,7 +210,7 @@
 BUILDTREE_MAKE    = $(GAMMADIR)/make/$(OSNAME)/makefiles/buildtree.make
 BUILDTREE_VARS    = GAMMADIR=$(GAMMADIR) OS_FAMILY=$(OSNAME) SRCARCH=$(SRCARCH) BUILDARCH=$(BUILDARCH) LIBARCH=$(LIBARCH)
 BUILDTREE_VARS   += HOTSPOT_RELEASE_VERSION=$(HOTSPOT_RELEASE_VERSION) HOTSPOT_BUILD_VERSION=$(HOTSPOT_BUILD_VERSION) JRE_RELEASE_VERSION=$(JRE_RELEASE_VERSION)
-BUILDTREE_VARS   += OBJCOPY=$(OBJCOPY) STRIP_POLICY=$(STRIP_POLICY)
+BUILDTREE_VARS   += ENABLE_FULL_DEBUG_SYMBOLS=$(ENABLE_FULL_DEBUG_SYMBOLS) OBJCOPY=$(OBJCOPY) STRIP_POLICY=$(STRIP_POLICY) ZIP_DEBUGINFO_FILES=$(ZIP_DEBUGINFO_FILES) ZIPEXE=$(ZIPEXE)
 
 BUILDTREE         = $(MAKE) -f $(BUILDTREE_MAKE) $(BUILDTREE_VARS)
 
@@ -337,9 +337,11 @@
 
 # Doc target.  This is the same for all build options.
 #     Hence create a docs directory beside ...$(ARCH)_[...]
+# We specify 'BUILD_FLAVOR=product' so that the proper
+# ENABLE_FULL_DEBUG_SYMBOLS value is used.
 docs: checks
 	$(QUIETLY) mkdir -p $(SUBDIR_DOCS)
-	$(MAKE) -f $(GAMMADIR)/make/$(OSNAME)/makefiles/jvmti.make $(MFLAGS) $(BUILDTREE_VARS) JvmtiOutDir=$(SUBDIR_DOCS) jvmtidocs
+	$(MAKE) -f $(GAMMADIR)/make/$(OSNAME)/makefiles/jvmti.make $(MFLAGS) $(BUILDTREE_VARS) JvmtiOutDir=$(SUBDIR_DOCS) BUILD_FLAVOR=product jvmtidocs
 
 # Synonyms for win32-like targets.
 compiler2:  jvmg product
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/linux/makefiles/buildtree.make
--- a/hotspot/make/linux/makefiles/buildtree.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/linux/makefiles/buildtree.make	Fri May 04 14:10:30 2012 -0700
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2005, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -236,10 +236,16 @@
 	echo "$(call gamma-path,commonsrc,os/posix/vm)"; \
 	[ -n "$(CFLAGS_BROWSE)" ] && \
 	    echo && echo "CFLAGS_BROWSE = $(CFLAGS_BROWSE)"; \
+	[ -n "$(ENABLE_FULL_DEBUG_SYMBOLS)" ] && \
+	    echo && echo "ENABLE_FULL_DEBUG_SYMBOLS = $(ENABLE_FULL_DEBUG_SYMBOLS)"; \
 	[ -n "$(OBJCOPY)" ] && \
 	    echo && echo "OBJCOPY = $(OBJCOPY)"; \
 	[ -n "$(STRIP_POLICY)" ] && \
 	    echo && echo "STRIP_POLICY = $(STRIP_POLICY)"; \
+	[ -n "$(ZIP_DEBUGINFO_FILES)" ] && \
+	    echo && echo "ZIP_DEBUGINFO_FILES = $(ZIP_DEBUGINFO_FILES)"; \
+	[ -n "$(ZIPEXE)" ] && \
+	    echo && echo "ZIPEXE = $(ZIPEXE)"; \
 	[ -n "$(HOTSPOT_EXTRA_SYSDEFS)" ] && \
 	    echo && \
 	    echo "HOTSPOT_EXTRA_SYSDEFS\$$(HOTSPOT_EXTRA_SYSDEFS) = $(HOTSPOT_EXTRA_SYSDEFS)" && \
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/linux/makefiles/defs.make
--- a/hotspot/make/linux/makefiles/defs.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/linux/makefiles/defs.make	Fri May 04 14:10:30 2012 -0700
@@ -141,32 +141,70 @@
 endif
 
 ifeq ($(JDK6_OR_EARLIER),0)
-  # Full Debug Symbols is supported on JDK7 or newer
+  # Full Debug Symbols is supported on JDK7 or newer.
+  # The Full Debug Symbols (FDS) default for BUILD_FLAVOR == product
+  # builds is enabled with debug info files ZIP'ed to save space. For
+  # BUILD_FLAVOR != product builds, FDS is always enabled, after all a
+  # debug build without debug info isn't very useful.
+  # The ZIP_DEBUGINFO_FILES option only has meaning when FDS is enabled.
+  #
+  # If you invoke a build with FULL_DEBUG_SYMBOLS=0, then FDS will be
+  # disabled for a BUILD_FLAVOR == product build.
+  #
+  # Note: Use of a different variable name for the FDS override option
+  # versus the FDS enabled check is intentional (FULL_DEBUG_SYMBOLS
+  # versus ENABLE_FULL_DEBUG_SYMBOLS). For auto build systems that pass
+  # in options via environment variables, use of distinct variables
+  # prevents strange behaviours. For example, in a BUILD_FLAVOR !=
+  # product build, the FULL_DEBUG_SYMBOLS environment variable will be
+  # 0, but the ENABLE_FULL_DEBUG_SYMBOLS make variable will be 1. If
+  # the same variable name is used, then different values can be picked
+  # up by different parts of the build. Just to be clear, we only need
+  # two variable names because the incoming option value can be
+  # overridden in some situations, e.g., a BUILD_FLAVOR != product
+  # build.
 
-  # Default OBJCOPY comes from GNU Binutils on Linux:
-  DEF_OBJCOPY=/usr/bin/objcopy
-  ifdef CROSS_COMPILE_ARCH
-    # don't try to generate .debuginfo files when cross compiling
-    _JUNK_ := $(shell \
-      echo >&2 "INFO: cross compiling for ARCH $(CROSS_COMPILE_ARCH)," \
-        "skipping .debuginfo generation.")
+  ifeq ($(BUILD_FLAVOR), product)
+    FULL_DEBUG_SYMBOLS ?= 1
+    ENABLE_FULL_DEBUG_SYMBOLS = $(FULL_DEBUG_SYMBOLS)
+  else
+    # debug variants always get Full Debug Symbols (if available)
+    ENABLE_FULL_DEBUG_SYMBOLS = 1
+  endif
+  _JUNK_ := $(shell \
+    echo >&2 "INFO: ENABLE_FULL_DEBUG_SYMBOLS=$(ENABLE_FULL_DEBUG_SYMBOLS)")
+  # since objcopy is optional, we set ZIP_DEBUGINFO_FILES later
+
+  ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+    # Default OBJCOPY comes from GNU Binutils on Linux:
+    DEF_OBJCOPY=/usr/bin/objcopy
+    ifdef CROSS_COMPILE_ARCH
+      # don't try to generate .debuginfo files when cross compiling
+      _JUNK_ := $(shell \
+        echo >&2 "INFO: cross compiling for ARCH $(CROSS_COMPILE_ARCH)," \
+          "skipping .debuginfo generation.")
+      OBJCOPY=
+    else
+      OBJCOPY=$(shell test -x $(DEF_OBJCOPY) && echo $(DEF_OBJCOPY))
+      ifneq ($(ALT_OBJCOPY),)
+        _JUNK_ := $(shell echo >&2 "INFO: ALT_OBJCOPY=$(ALT_OBJCOPY)")
+        OBJCOPY=$(shell test -x $(ALT_OBJCOPY) && echo $(ALT_OBJCOPY))
+      endif
+    endif
+  else
     OBJCOPY=
-  else
-    OBJCOPY=$(shell test -x $(DEF_OBJCOPY) && echo $(DEF_OBJCOPY))
-    ifneq ($(ALT_OBJCOPY),)
-      _JUNK_ := $(shell echo >&2 "INFO: ALT_OBJCOPY=$(ALT_OBJCOPY)")
-      # disable .debuginfo support by setting ALT_OBJCOPY to a non-existent path
-      OBJCOPY=$(shell test -x $(ALT_OBJCOPY) && echo $(ALT_OBJCOPY))
-    endif
   endif
-  
+
   ifeq ($(OBJCOPY),)
     _JUNK_ := $(shell \
       echo >&2 "INFO: no objcopy cmd found so cannot create .debuginfo files.")
+    ENABLE_FULL_DEBUG_SYMBOLS=0
+    _JUNK_ := $(shell \
+      echo >&2 "INFO: ENABLE_FULL_DEBUG_SYMBOLS=$(ENABLE_FULL_DEBUG_SYMBOLS)")
   else
     _JUNK_ := $(shell \
       echo >&2 "INFO: $(OBJCOPY) cmd found so will create .debuginfo files.")
-  
+
     # Library stripping policies for .debuginfo configs:
     #   all_strip - strips everything from the library
     #   min_strip - strips most stuff from the library; leaves minimum symbols
@@ -175,15 +213,17 @@
     # Oracle security policy requires "all_strip". A waiver was granted on
     # 2011.09.01 that permits using "min_strip" in the Java JDK and Java JRE.
     #
-    DEF_STRIP_POLICY="min_strip"
-    ifeq ($(ALT_STRIP_POLICY),)
-      STRIP_POLICY=$(DEF_STRIP_POLICY)
-    else
-      STRIP_POLICY=$(ALT_STRIP_POLICY)
-    endif
-  
+    # Currently, STRIP_POLICY is only used when Full Debug Symbols is enabled.
+    #
+    STRIP_POLICY ?= min_strip
+
     _JUNK_ := $(shell \
       echo >&2 "INFO: STRIP_POLICY=$(STRIP_POLICY)")
+
+    ZIP_DEBUGINFO_FILES ?= 1
+
+    _JUNK_ := $(shell \
+      echo >&2 "INFO: ZIP_DEBUGINFO_FILES=$(ZIP_DEBUGINFO_FILES)")
   endif
 endif
 
@@ -199,8 +239,12 @@
 
 # client and server subdirectories have symbolic links to ../libjsig.so
 EXPORT_LIST += $(EXPORT_JRE_LIB_ARCH_DIR)/libjsig.$(LIBRARY_SUFFIX)
-ifneq ($(OBJCOPY),)
-  EXPORT_LIST += $(EXPORT_JRE_LIB_ARCH_DIR)/libjsig.debuginfo
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+  ifeq ($(ZIP_DEBUGINFO_FILES),1)
+    EXPORT_LIST += $(EXPORT_JRE_LIB_ARCH_DIR)/libjsig.diz
+  else
+    EXPORT_LIST += $(EXPORT_JRE_LIB_ARCH_DIR)/libjsig.debuginfo
+  endif
 endif
 EXPORT_SERVER_DIR = $(EXPORT_JRE_LIB_ARCH_DIR)/server
 EXPORT_CLIENT_DIR = $(EXPORT_JRE_LIB_ARCH_DIR)/client
@@ -210,16 +254,24 @@
 ifeq ($(findstring true, $(JVM_VARIANT_SERVER) $(JVM_VARIANT_ZERO) $(JVM_VARIANT_ZEROSHARK)), true)
   EXPORT_LIST += $(EXPORT_SERVER_DIR)/Xusage.txt
   EXPORT_LIST += $(EXPORT_SERVER_DIR)/libjvm.$(LIBRARY_SUFFIX)
-  ifneq ($(OBJCOPY),)
-    EXPORT_LIST += $(EXPORT_SERVER_DIR)/libjvm.debuginfo
+  ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+    ifeq ($(ZIP_DEBUGINFO_FILES),1)
+      EXPORT_LIST += $(EXPORT_SERVER_DIR)/libjvm.diz
+    else
+      EXPORT_LIST += $(EXPORT_SERVER_DIR)/libjvm.debuginfo
+    endif
   endif
 endif
 
 ifeq ($(JVM_VARIANT_CLIENT),true)
   EXPORT_LIST += $(EXPORT_CLIENT_DIR)/Xusage.txt
   EXPORT_LIST += $(EXPORT_CLIENT_DIR)/libjvm.$(LIBRARY_SUFFIX)
-  ifneq ($(OBJCOPY),)
-    EXPORT_LIST += $(EXPORT_CLIENT_DIR)/libjvm.debuginfo
+  ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+    ifeq ($(ZIP_DEBUGINFO_FILES),1)
+      EXPORT_LIST += $(EXPORT_CLIENT_DIR)/libjvm.diz
+    else
+      EXPORT_LIST += $(EXPORT_CLIENT_DIR)/libjvm.debuginfo
+    endif
   endif 
 endif
 
@@ -229,9 +281,14 @@
                         $(EXPORT_LIB_DIR)/sa-jdi.jar 
 ADD_SA_BINARIES/sparc = $(EXPORT_JRE_LIB_ARCH_DIR)/libsaproc.$(LIBRARY_SUFFIX) \
                         $(EXPORT_LIB_DIR)/sa-jdi.jar 
-ifneq ($(OBJCOPY),)
-  ADD_SA_BINARIES/x86   += $(EXPORT_JRE_LIB_ARCH_DIR)/libsaproc.debuginfo
-  ADD_SA_BINARIES/sparc += $(EXPORT_JRE_LIB_ARCH_DIR)/libsaproc.debuginfo
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+  ifeq ($(ZIP_DEBUGINFO_FILES),1)
+    ADD_SA_BINARIES/x86   += $(EXPORT_JRE_LIB_ARCH_DIR)/libsaproc.diz
+    ADD_SA_BINARIES/sparc += $(EXPORT_JRE_LIB_ARCH_DIR)/libsaproc.diz
+  else
+    ADD_SA_BINARIES/x86   += $(EXPORT_JRE_LIB_ARCH_DIR)/libsaproc.debuginfo
+    ADD_SA_BINARIES/sparc += $(EXPORT_JRE_LIB_ARCH_DIR)/libsaproc.debuginfo
+  endif
 endif
 ADD_SA_BINARIES/ppc   = 
 ADD_SA_BINARIES/ia64  = 
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/linux/makefiles/gcc.make
--- a/hotspot/make/linux/makefiles/gcc.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/linux/makefiles/gcc.make	Fri May 04 14:10:30 2012 -0700
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -230,7 +230,7 @@
 DEBUG_CFLAGS += -gstabs
 endif
 
-ifneq ($(OBJCOPY),)
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
   FASTDEBUG_CFLAGS/ia64  = -g
   FASTDEBUG_CFLAGS/amd64 = -g
   FASTDEBUG_CFLAGS/arm   = -g
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/linux/makefiles/jsig.make
--- a/hotspot/make/linux/makefiles/jsig.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/linux/makefiles/jsig.make	Fri May 04 14:10:30 2012 -0700
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2005, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -32,12 +32,15 @@
 LIBJSIG_G = lib$(JSIG_G).so
 
 LIBJSIG_DEBUGINFO   = lib$(JSIG).debuginfo
+LIBJSIG_DIZ         = lib$(JSIG).diz
 LIBJSIG_G_DEBUGINFO = lib$(JSIG_G).debuginfo
+LIBJSIG_G_DIZ       = lib$(JSIG_G).diz
 
 JSIGSRCDIR = $(GAMMADIR)/src/os/$(Platform_os_family)/vm
 
 DEST_JSIG           = $(JDK_LIBDIR)/$(LIBJSIG)
 DEST_JSIG_DEBUGINFO = $(JDK_LIBDIR)/$(LIBJSIG_DEBUGINFO)
+DEST_JSIG_DIZ       = $(JDK_LIBDIR)/$(LIBJSIG_DIZ)
 
 LIBJSIG_MAPFILE = $(MAKEFILES_DIR)/mapfile-vers-jsig
 
@@ -58,7 +61,7 @@
 	$(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) $(SHARED_FLAG) $(PICFLAG) \
                          $(LFLAGS_JSIG) $(JSIG_DEBUG_CFLAGS) -o $@ $< -ldl
 	$(QUIETLY) [ -f $(LIBJSIG_G) ] || { ln -s $@ $(LIBJSIG_G); }
-ifneq ($(OBJCOPY),)
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJSIG_DEBUGINFO)
 	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJSIG_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
@@ -70,12 +73,19 @@
     endif
   endif
 	[ -f $(LIBJSIG_G_DEBUGINFO) ] || { ln -s $(LIBJSIG_DEBUGINFO) $(LIBJSIG_G_DEBUGINFO); }
+  ifeq ($(ZIP_DEBUGINFO_FILES),1)
+	$(ZIPEXE) -q -y $(LIBJSIG_DIZ) $(LIBJSIG_DEBUGINFO) $(LIBJSIG_G_DEBUGINFO)
+	$(RM) $(LIBJSIG_DEBUGINFO) $(LIBJSIG_G_DEBUGINFO)
+	[ -f $(LIBJSIG_G_DIZ) ] || { ln -s $(LIBJSIG_DIZ) $(LIBJSIG_G_DIZ); }
+  endif
 endif
 
 install_jsig: $(LIBJSIG)
 	@echo "Copying $(LIBJSIG) to $(DEST_JSIG)"
 	$(QUIETLY) test -f $(LIBJSIG_DEBUGINFO) && \
 	    cp -f $(LIBJSIG_DEBUGINFO) $(DEST_JSIG_DEBUGINFO)
+	$(QUIETLY) test -f $(LIBJSIG_DIZ) && \
+	    cp -f $(LIBJSIG_DIZ) $(DEST_JSIG_DIZ)
 	$(QUIETLY) cp -f $(LIBJSIG) $(DEST_JSIG) && echo "Done"
 
 .PHONY: install_jsig
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/linux/makefiles/saproc.make
--- a/hotspot/make/linux/makefiles/saproc.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/linux/makefiles/saproc.make	Fri May 04 14:10:30 2012 -0700
@@ -33,7 +33,9 @@
 LIBSAPROC_G = lib$(SAPROC_G).so
 
 LIBSAPROC_DEBUGINFO   = lib$(SAPROC).debuginfo
+LIBSAPROC_DIZ         = lib$(SAPROC).diz
 LIBSAPROC_G_DEBUGINFO = lib$(SAPROC_G).debuginfo
+LIBSAPROC_G_DIZ       = lib$(SAPROC_G).diz
 
 AGENT_DIR = $(GAMMADIR)/agent
 
@@ -50,6 +52,7 @@
 
 DEST_SAPROC           = $(JDK_LIBDIR)/$(LIBSAPROC)
 DEST_SAPROC_DEBUGINFO = $(JDK_LIBDIR)/$(LIBSAPROC_DEBUGINFO)
+DEST_SAPROC_DIZ       = $(JDK_LIBDIR)/$(LIBSAPROC_DIZ)
 
 # DEBUG_BINARIES overrides everything, use full -g debug information
 ifeq ($(DEBUG_BINARIES), true)
@@ -87,7 +90,7 @@
 	           -o $@                                                \
 	           -lthread_db
 	$(QUIETLY) [ -f $(LIBSAPROC_G) ] || { ln -s $@ $(LIBSAPROC_G); }
-ifneq ($(OBJCOPY),)
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBSAPROC_DEBUGINFO)
 	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBSAPROC_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
@@ -99,6 +102,11 @@
     endif
   endif
 	[ -f $(LIBSAPROC_G_DEBUGINFO) ] || { ln -s $(LIBSAPROC_DEBUGINFO) $(LIBSAPROC_G_DEBUGINFO); }
+  ifeq ($(ZIP_DEBUGINFO_FILES),1)
+	$(ZIPEXE) -q -y $(LIBSAPROC_DIZ) $(LIBSAPROC_DEBUGINFO) $(LIBSAPROC_G_DEBUGINFO)
+	$(RM) $(LIBSAPROC_DEBUGINFO) $(LIBSAPROC_G_DEBUGINFO)
+	[ -f $(LIBSAPROC_G_DIZ) ] || { ln -s $(LIBSAPROC_DIZ) $(LIBSAPROC_G_DIZ); }
+  endif
 endif
 
 install_saproc: $(BUILDLIBSAPROC)
@@ -106,6 +114,8 @@
 	  echo "Copying $(LIBSAPROC) to $(DEST_SAPROC)";     \
 	  test -f $(LIBSAPROC_DEBUGINFO) &&                  \
 	    cp -f $(LIBSAPROC_DEBUGINFO) $(DEST_SAPROC_DEBUGINFO); \
+	  test -f $(LIBSAPROC_DIZ) &&                  \
+	    cp -f $(LIBSAPROC_DIZ) $(DEST_SAPROC_DIZ); \
 	  cp -f $(LIBSAPROC) $(DEST_SAPROC) && echo "Done";  \
 	fi
 
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/linux/makefiles/vm.make
--- a/hotspot/make/linux/makefiles/vm.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/linux/makefiles/vm.make	Fri May 04 14:10:30 2012 -0700
@@ -61,7 +61,7 @@
 INCLUDES += $(PRECOMPILED_HEADER_DIR:%=-I%) $(Src_Dirs_I:%=-I%)
 
 # SYMFLAG is used by {jsig,saproc}.make
-ifneq ($(OBJCOPY),)
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
   # always build with debug info when we can create .debuginfo files
   SYMFLAG = -g
 else
@@ -139,7 +139,9 @@
 LIBJVM_G = lib$(JVM)$(G_SUFFIX).so
 
 LIBJVM_DEBUGINFO   = lib$(JVM).debuginfo
+LIBJVM_DIZ         = lib$(JVM).diz
 LIBJVM_G_DEBUGINFO = lib$(JVM)$(G_SUFFIX).debuginfo
+LIBJVM_G_DIZ       = lib$(JVM)$(G_SUFFIX).diz
 
 SPECIAL_PATHS:=adlc c1 gc_implementation opto shark libadt
 
@@ -331,7 +333,7 @@
             fi 								\
 	}
 ifeq ($(CROSS_COMPILE_ARCH),)
-  ifneq ($(OBJCOPY),)
+  ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJVM_DEBUGINFO)
 	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DEBUGINFO) $@
     ifeq ($(STRIP_POLICY),all_strip)
@@ -343,17 +345,25 @@
       endif
     endif
 	$(QUIETLY) [ -f $(LIBJVM_G_DEBUGINFO) ] || ln -s $(LIBJVM_DEBUGINFO) $(LIBJVM_G_DEBUGINFO)
+    ifeq ($(ZIP_DEBUGINFO_FILES),1)
+	$(ZIPEXE) -q -y $(LIBJVM_DIZ) $(LIBJVM_DEBUGINFO) $(LIBJVM_G_DEBUGINFO)
+	$(RM) $(LIBJVM_DEBUGINFO) $(LIBJVM_G_DEBUGINFO)
+	[ -f $(LIBJVM_G_DIZ) ] || { ln -s $(LIBJVM_DIZ) $(LIBJVM_G_DIZ); }
+    endif
   endif
 endif
 
 DEST_SUBDIR        = $(JDK_LIBDIR)/$(VM_SUBDIR)
 DEST_JVM           = $(DEST_SUBDIR)/$(LIBJVM)
 DEST_JVM_DEBUGINFO = $(DEST_SUBDIR)/$(LIBJVM_DEBUGINFO)
+DEST_JVM_DIZ       = $(DEST_SUBDIR)/$(LIBJVM_DIZ)
 
 install_jvm: $(LIBJVM)
 	@echo "Copying $(LIBJVM) to $(DEST_JVM)"
 	$(QUIETLY) test -f $(LIBJVM_DEBUGINFO) && \
 	    cp -f $(LIBJVM_DEBUGINFO) $(DEST_JVM_DEBUGINFO)
+	$(QUIETLY) test -f $(LIBJVM_DIZ) && \
+	    cp -f $(LIBJVM_DIZ) $(DEST_JVM_DIZ)
 	$(QUIETLY) cp -f $(LIBJVM) $(DEST_JVM) && echo "Done"
 
 #----------------------------------------------------------------------
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/solaris/Makefile
--- a/hotspot/make/solaris/Makefile	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/solaris/Makefile	Fri May 04 14:10:30 2012 -0700
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -168,7 +168,7 @@
 BUILDTREE_MAKE    = $(GAMMADIR)/make/$(OSNAME)/makefiles/buildtree.make
 BUILDTREE_VARS    = GAMMADIR=$(GAMMADIR) OS_FAMILY=$(OSNAME) ARCH=$(SRCARCH) BUILDARCH=$(BUILDARCH) LIBARCH=$(LIBARCH)
 BUILDTREE_VARS   += HOTSPOT_RELEASE_VERSION=$(HOTSPOT_RELEASE_VERSION) HOTSPOT_BUILD_VERSION=$(HOTSPOT_BUILD_VERSION) JRE_RELEASE_VERSION=$(JRE_RELEASE_VERSION)
-BUILDTREE_VARS   += OBJCOPY=$(OBJCOPY) STRIP_POLICY=$(STRIP_POLICY)
+BUILDTREE_VARS   += ENABLE_FULL_DEBUG_SYMBOLS=$(ENABLE_FULL_DEBUG_SYMBOLS) OBJCOPY=$(OBJCOPY) STRIP_POLICY=$(STRIP_POLICY) ZIP_DEBUGINFO_FILES=$(ZIP_DEBUGINFO_FILES) ZIPEXE=$(ZIPEXE)
 
 BUILDTREE         = $(MAKE) -f $(BUILDTREE_MAKE) $(BUILDTREE_VARS)
 
@@ -278,9 +278,11 @@
 
 # Doc target.  This is the same for all build options.
 #     Hence create a docs directory beside ...$(ARCH)_[...]
+# We specify 'BUILD_FLAVOR=product' so that the proper
+# ENABLE_FULL_DEBUG_SYMBOLS value is used.
 docs: checks
 	$(QUIETLY) mkdir -p $(SUBDIR_DOCS)
-	$(MAKE) -f $(GAMMADIR)/make/$(OSNAME)/makefiles/jvmti.make $(MFLAGS) $(BUILDTREE_VARS) JvmtiOutDir=$(SUBDIR_DOCS) jvmtidocs
+	$(MAKE) -f $(GAMMADIR)/make/$(OSNAME)/makefiles/jvmti.make $(MFLAGS) $(BUILDTREE_VARS) JvmtiOutDir=$(SUBDIR_DOCS) BUILD_FLAVOR=product jvmtidocs
 
 # Synonyms for win32-like targets.
 compiler2:  jvmg product
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/solaris/makefiles/buildtree.make
--- a/hotspot/make/solaris/makefiles/buildtree.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/solaris/makefiles/buildtree.make	Fri May 04 14:10:30 2012 -0700
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -229,10 +229,16 @@
 	echo "$(call gamma-path,commonsrc,os/posix/vm)"; \
 	[ -n "$(CFLAGS_BROWSE)" ] && \
 	    echo && echo "CFLAGS_BROWSE = $(CFLAGS_BROWSE)"; \
+	[ -n "$(ENABLE_FULL_DEBUG_SYMBOLS)" ] && \
+	    echo && echo "ENABLE_FULL_DEBUG_SYMBOLS = $(ENABLE_FULL_DEBUG_SYMBOLS)"; \
 	[ -n "$(OBJCOPY)" ] && \
 	    echo && echo "OBJCOPY = $(OBJCOPY)"; \
 	[ -n "$(STRIP_POLICY)" ] && \
 	    echo && echo "STRIP_POLICY = $(STRIP_POLICY)"; \
+	[ -n "$(ZIP_DEBUGINFO_FILES)" ] && \
+	    echo && echo "ZIP_DEBUGINFO_FILES = $(ZIP_DEBUGINFO_FILES)"; \
+	[ -n "$(ZIPEXE)" ] && \
+	    echo && echo "ZIPEXE = $(ZIPEXE)"; \
 	[ -n "$(HOTSPOT_EXTRA_SYSDEFS)" ] && \
 	    echo && \
 	    echo "HOTSPOT_EXTRA_SYSDEFS\$$(HOTSPOT_EXTRA_SYSDEFS) = $(HOTSPOT_EXTRA_SYSDEFS)" && \
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/solaris/makefiles/defs.make
--- a/hotspot/make/solaris/makefiles/defs.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/solaris/makefiles/defs.make	Fri May 04 14:10:30 2012 -0700
@@ -86,45 +86,83 @@
 endif
 
 ifeq ($(JDK6_OR_EARLIER),0)
-  # Full Debug Symbols is supported on JDK7 or newer
+  # Full Debug Symbols is supported on JDK7 or newer.
+  # The Full Debug Symbols (FDS) default for BUILD_FLAVOR == product
+  # builds is enabled with debug info files ZIP'ed to save space. For
+  # BUILD_FLAVOR != product builds, FDS is always enabled, after all a
+  # debug build without debug info isn't very useful.
+  # The ZIP_DEBUGINFO_FILES option only has meaning when FDS is enabled.
+  #
+  # If you invoke a build with FULL_DEBUG_SYMBOLS=0, then FDS will be
+  # disabled for a BUILD_FLAVOR == product build.
+  #
+  # Note: Use of a different variable name for the FDS override option
+  # versus the FDS enabled check is intentional (FULL_DEBUG_SYMBOLS
+  # versus ENABLE_FULL_DEBUG_SYMBOLS). For auto build systems that pass
+  # in options via environment variables, use of distinct variables
+  # prevents strange behaviours. For example, in a BUILD_FLAVOR !=
+  # product build, the FULL_DEBUG_SYMBOLS environment variable will be
+  # 0, but the ENABLE_FULL_DEBUG_SYMBOLS make variable will be 1. If
+  # the same variable name is used, then different values can be picked
+  # up by different parts of the build. Just to be clear, we only need
+  # two variable names because the incoming option value can be
+  # overridden in some situations, e.g., a BUILD_FLAVOR != product
+  # build.
 
-ifdef ENABLE_FULL_DEBUG_SYMBOLS
-  # Only check for Full Debug Symbols support on Solaris if it is
-  # specifically enabled. Hopefully, it can be enabled by default
-  # once the .debuginfo size issues are worked out.
-  
-  # Default OBJCOPY comes from the SUNWbinutils package:
-  DEF_OBJCOPY=/usr/sfw/bin/gobjcopy
-  ifeq ($(VM_PLATFORM),solaris_amd64)
-    # On Solaris AMD64/X64, gobjcopy is not happy and fails:
-    #
-    # usr/sfw/bin/gobjcopy --add-gnu-debuglink=<lib>.debuginfo <lib>.so
-    # BFD: stKPaiop: Not enough room for program headers, try linking with -N
-    # /usr/sfw/bin/gobjcopy: stKPaiop: Bad value
-    # BFD: stKPaiop: Not enough room for program headers, try linking with -N
-    # /usr/sfw/bin/gobjcopy: libsaproc.debuginfo: Bad value
-    # BFD: stKPaiop: Not enough room for program headers, try linking with -N
-    # /usr/sfw/bin/gobjcopy: stKPaiop: Bad value
-    _JUNK_ := $(shell \
-      echo >&2 "INFO: $(DEF_OBJCOPY) is not working on Solaris AMD64/X64")
+  # Disable FULL_DEBUG_SYMBOLS by default because dtrace tests are
+  # failing in nightly when the debug info files are ZIP'ed. On
+  # Solaris debug info files need to be ZIP'ed to reduce the impact
+  # on disk space footprint.
+  FULL_DEBUG_SYMBOLS ?= 0
+  ifeq ($(BUILD_FLAVOR), product)
+    # FULL_DEBUG_SYMBOLS ?= 1
+    ENABLE_FULL_DEBUG_SYMBOLS = $(FULL_DEBUG_SYMBOLS)
+  else
+    # debug variants always get Full Debug Symbols (if available)
+    # ENABLE_FULL_DEBUG_SYMBOLS = 1
+    ENABLE_FULL_DEBUG_SYMBOLS = $(FULL_DEBUG_SYMBOLS)
+  endif
+  _JUNK_ := $(shell \
+    echo >&2 "INFO: ENABLE_FULL_DEBUG_SYMBOLS=$(ENABLE_FULL_DEBUG_SYMBOLS)")
+  # since objcopy is optional, we set ZIP_DEBUGINFO_FILES later
+
+  ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+    # Default OBJCOPY comes from the SUNWbinutils package:
+    DEF_OBJCOPY=/usr/sfw/bin/gobjcopy
+    ifeq ($(VM_PLATFORM),solaris_amd64)
+      # On Solaris AMD64/X64, gobjcopy is not happy and fails:
+      #
+      # usr/sfw/bin/gobjcopy --add-gnu-debuglink=<lib>.debuginfo <lib>.so
+      # BFD: stKPaiop: Not enough room for program headers, try linking with -N
+      # /usr/sfw/bin/gobjcopy: stKPaiop: Bad value
+      # BFD: stKPaiop: Not enough room for program headers, try linking with -N
+      # /usr/sfw/bin/gobjcopy: libsaproc.debuginfo: Bad value
+      # BFD: stKPaiop: Not enough room for program headers, try linking with -N
+      # /usr/sfw/bin/gobjcopy: stKPaiop: Bad value
+      _JUNK_ := $(shell \
+        echo >&2 "INFO: $(DEF_OBJCOPY) is not working on Solaris AMD64/X64")
+      OBJCOPY=
+    else
+      OBJCOPY=$(shell test -x $(DEF_OBJCOPY) && echo $(DEF_OBJCOPY))
+      ifneq ($(ALT_OBJCOPY),)
+        _JUNK_ := $(shell echo >&2 "INFO: ALT_OBJCOPY=$(ALT_OBJCOPY)")
+        OBJCOPY=$(shell test -x $(ALT_OBJCOPY) && echo $(ALT_OBJCOPY))
+      endif
+    endif
+  else
     OBJCOPY=
-  else
-    OBJCOPY=$(shell test -x $(DEF_OBJCOPY) && echo $(DEF_OBJCOPY))
-    ifneq ($(ALT_OBJCOPY),)
-      _JUNK_ := $(shell echo >&2 "INFO: ALT_OBJCOPY=$(ALT_OBJCOPY)")
-      # disable .debuginfo support by setting ALT_OBJCOPY to a non-existent path
-      OBJCOPY=$(shell test -x $(ALT_OBJCOPY) && echo $(ALT_OBJCOPY))
-    endif
   endif
-endif
-  
+
   ifeq ($(OBJCOPY),)
     _JUNK_ := $(shell \
       echo >&2 "INFO: no objcopy cmd found so cannot create .debuginfo files.")
+    ENABLE_FULL_DEBUG_SYMBOLS=0
+    _JUNK_ := $(shell \
+      echo >&2 "INFO: ENABLE_FULL_DEBUG_SYMBOLS=$(ENABLE_FULL_DEBUG_SYMBOLS)")
   else
     _JUNK_ := $(shell \
       echo >&2 "INFO: $(OBJCOPY) cmd found so will create .debuginfo files.")
-  
+
     # Library stripping policies for .debuginfo configs:
     #   all_strip - strips everything from the library
     #   min_strip - strips most stuff from the library; leaves minimum symbols
@@ -133,14 +171,19 @@
     # Oracle security policy requires "all_strip". A waiver was granted on
     # 2011.09.01 that permits using "min_strip" in the Java JDK and Java JRE.
     #
-    DEF_STRIP_POLICY="min_strip"
-    ifeq ($(ALT_STRIP_POLICY),)
-      STRIP_POLICY=$(DEF_STRIP_POLICY)
-    else
-      STRIP_POLICY=$(ALT_STRIP_POLICY)
-    endif
+    # Currently, STRIP_POLICY is only used when Full Debug Symbols is enabled.
+    #
+    STRIP_POLICY ?= min_strip
+
     _JUNK_ := $(shell \
       echo >&2 "INFO: STRIP_POLICY=$(STRIP_POLICY)")
+
+    # Disable ZIP_DEBUGINFO_FILES by default because dtrace tests are
+    # failing in nightly when the debug info files are ZIP'ed.
+    ZIP_DEBUGINFO_FILES ?= 0
+
+    _JUNK_ := $(shell \
+      echo >&2 "INFO: ZIP_DEBUGINFO_FILES=$(ZIP_DEBUGINFO_FILES)")
   endif
 endif
 
@@ -156,8 +199,12 @@
 
 # client and server subdirectories have symbolic links to ../libjsig.$(LIBRARY_SUFFIX)
 EXPORT_LIST += $(EXPORT_JRE_LIB_ARCH_DIR)/libjsig.$(LIBRARY_SUFFIX)
-ifneq ($(OBJCOPY),)
-  EXPORT_LIST += $(EXPORT_JRE_LIB_ARCH_DIR)/libjsig.debuginfo
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+  ifeq ($(ZIP_DEBUGINFO_FILES),1)
+    EXPORT_LIST += $(EXPORT_JRE_LIB_ARCH_DIR)/libjsig.diz
+  else
+    EXPORT_LIST += $(EXPORT_JRE_LIB_ARCH_DIR)/libjsig.debuginfo
+  endif
 endif
 
 EXPORT_LIST += $(EXPORT_JRE_LIB_DIR)/wb.jar
@@ -174,10 +221,16 @@
     EXPORT_LIST += $(EXPORT_SERVER_DIR)/64/libjvm_db.$(LIBRARY_SUFFIX)
     EXPORT_LIST += $(EXPORT_SERVER_DIR)/64/libjvm_dtrace.$(LIBRARY_SUFFIX)
   endif
-  ifneq ($(OBJCOPY),)
-    EXPORT_LIST += $(EXPORT_SERVER_DIR)/libjvm.debuginfo
-    EXPORT_LIST += $(EXPORT_SERVER_DIR)/libjvm_db.debuginfo
-    EXPORT_LIST += $(EXPORT_SERVER_DIR)/libjvm_dtrace.debuginfo
+  ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+    ifeq ($(ZIP_DEBUGINFO_FILES),1)
+      EXPORT_LIST += $(EXPORT_SERVER_DIR)/libjvm.diz
+      EXPORT_LIST += $(EXPORT_SERVER_DIR)/libjvm_db.diz
+      EXPORT_LIST += $(EXPORT_SERVER_DIR)/libjvm_dtrace.diz
+    else
+      EXPORT_LIST += $(EXPORT_SERVER_DIR)/libjvm.debuginfo
+      EXPORT_LIST += $(EXPORT_SERVER_DIR)/libjvm_db.debuginfo
+      EXPORT_LIST += $(EXPORT_SERVER_DIR)/libjvm_dtrace.debuginfo
+    endif
   endif
 endif
 ifeq ($(JVM_VARIANT_CLIENT),true)
@@ -189,19 +242,33 @@
     EXPORT_LIST += $(EXPORT_CLIENT_DIR)/64/libjvm_db.$(LIBRARY_SUFFIX)
     EXPORT_LIST += $(EXPORT_CLIENT_DIR)/64/libjvm_dtrace.$(LIBRARY_SUFFIX)
   endif
-  ifneq ($(OBJCOPY),)
-    EXPORT_LIST += $(EXPORT_CLIENT_DIR)/libjvm.debuginfo
-    EXPORT_LIST += $(EXPORT_CLIENT_DIR)/libjvm_db.debuginfo
-    EXPORT_LIST += $(EXPORT_CLIENT_DIR)/libjvm_dtrace.debuginfo
-    ifeq ($(ARCH_DATA_MODEL),32)
-      EXPORT_LIST += $(EXPORT_CLIENT_DIR)/64/libjvm_db.debuginfo
-      EXPORT_LIST += $(EXPORT_CLIENT_DIR)/64/libjvm_dtrace.debuginfo
+  ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+    ifeq ($(ZIP_DEBUGINFO_FILES),1)
+      EXPORT_LIST += $(EXPORT_CLIENT_DIR)/libjvm.diz
+      EXPORT_LIST += $(EXPORT_CLIENT_DIR)/libjvm_db.diz
+      EXPORT_LIST += $(EXPORT_CLIENT_DIR)/libjvm_dtrace.diz
+      ifeq ($(ARCH_DATA_MODEL),32)
+        EXPORT_LIST += $(EXPORT_CLIENT_DIR)/64/libjvm_db.diz
+        EXPORT_LIST += $(EXPORT_CLIENT_DIR)/64/libjvm_dtrace.diz
+      endif
+    else
+      EXPORT_LIST += $(EXPORT_CLIENT_DIR)/libjvm.debuginfo
+      EXPORT_LIST += $(EXPORT_CLIENT_DIR)/libjvm_db.debuginfo
+      EXPORT_LIST += $(EXPORT_CLIENT_DIR)/libjvm_dtrace.debuginfo
+      ifeq ($(ARCH_DATA_MODEL),32)
+        EXPORT_LIST += $(EXPORT_CLIENT_DIR)/64/libjvm_db.debuginfo
+        EXPORT_LIST += $(EXPORT_CLIENT_DIR)/64/libjvm_dtrace.debuginfo
+      endif
     endif
   endif
 endif
 
 EXPORT_LIST += $(EXPORT_JRE_LIB_ARCH_DIR)/libsaproc.$(LIBRARY_SUFFIX)
-ifneq ($(OBJCOPY),)
-  EXPORT_LIST += $(EXPORT_JRE_LIB_ARCH_DIR)/libsaproc.debuginfo
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+  ifeq ($(ZIP_DEBUGINFO_FILES),1)
+    EXPORT_LIST += $(EXPORT_JRE_LIB_ARCH_DIR)/libsaproc.diz
+  else
+    EXPORT_LIST += $(EXPORT_JRE_LIB_ARCH_DIR)/libsaproc.debuginfo
+  endif
 endif
 EXPORT_LIST += $(EXPORT_LIB_DIR)/sa-jdi.jar 
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/solaris/makefiles/dtrace.make
--- a/hotspot/make/solaris/makefiles/dtrace.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/solaris/makefiles/dtrace.make	Fri May 04 14:10:30 2012 -0700
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2005, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -41,15 +41,19 @@
 LIBJVM_DB = libjvm_db.so
 LIBJVM_DB_G = libjvm$(G_SUFFIX)_db.so
 
-LIBJVM_DB_DEBUGINFO = libjvm_db.debuginfo
+LIBJVM_DB_DEBUGINFO   = libjvm_db.debuginfo
+LIBJVM_DB_DIZ         = libjvm_db.diz
 LIBJVM_DB_G_DEBUGINFO = libjvm$(G_SUFFIX)_db.debuginfo
+LIBJVM_DB_G_DIZ       = libjvm$(G_SUFFIX)_db.diz
 
 JVM_DTRACE = jvm_dtrace
 LIBJVM_DTRACE = libjvm_dtrace.so
 LIBJVM_DTRACE_G = libjvm$(G_SUFFIX)_dtrace.so
 
-LIBJVM_DTRACE_DEBUGINFO = libjvm_dtrace.debuginfo
+LIBJVM_DTRACE_DEBUGINFO   = libjvm_dtrace.debuginfo
+LIBJVM_DTRACE_DIZ         = libjvm_dtrace.diz
 LIBJVM_DTRACE_G_DEBUGINFO = libjvm$(G_SUFFIX)_dtrace.debuginfo
+LIBJVM_DTRACE_G_DIZ       = libjvm$(G_SUFFIX)_dtrace.diz
 
 JVMOFFS = JvmOffsets
 JVMOFFS.o = $(JVMOFFS).o
@@ -95,10 +99,14 @@
 XLIBJVM_DTRACE = 64/$(LIBJVM_DTRACE)
 XLIBJVM_DTRACE_G = 64/$(LIBJVM_DTRACE_G)
 
-XLIBJVM_DB_DEBUGINFO = 64/$(LIBJVM_DB_DEBUGINFO)
-XLIBJVM_DB_G_DEBUGINFO = 64/$(LIBJVM_DB_G_DEBUGINFO)
-XLIBJVM_DTRACE_DEBUGINFO = 64/$(LIBJVM_DTRACE_DEBUGINFO)
+XLIBJVM_DB_DEBUGINFO       = 64/$(LIBJVM_DB_DEBUGINFO)
+XLIBJVM_DB_DIZ             = 64/$(LIBJVM_DB_DIZ)
+XLIBJVM_DB_G_DEBUGINFO     = 64/$(LIBJVM_DB_G_DEBUGINFO)
+XLIBJVM_DB_G_DIZ           = 64/$(LIBJVM_DB_G_DIZ)
+XLIBJVM_DTRACE_DEBUGINFO   = 64/$(LIBJVM_DTRACE_DEBUGINFO)
+XLIBJVM_DTRACE_DIZ         = 64/$(LIBJVM_DTRACE_DIZ)
 XLIBJVM_DTRACE_G_DEBUGINFO = 64/$(LIBJVM_DTRACE_G_DEBUGINFO)
+XLIBJVM_DTRACE_G_DIZ       = 64/$(LIBJVM_DTRACE_G_DIZ)
 
 $(XLIBJVM_DB): $(DTRACE_SRCDIR)/$(JVM_DB).c $(JVMOFFS).h $(LIBJVM_DB_MAPFILE)
 	@echo Making $@
@@ -106,7 +114,7 @@
 	$(CC) $(SYMFLAG) $(ARCHFLAG/$(ISA)) -D$(TYPE) -I. -I$(GENERATED) \
 		$(SHARED_FLAG) $(LFLAGS_JVM_DB) -o $@ $(DTRACE_SRCDIR)/$(JVM_DB).c -lc
 	[ -f $(XLIBJVM_DB_G) ] || { ln -s $(LIBJVM_DB) $(XLIBJVM_DB_G); }
-ifneq ($(OBJCOPY),)
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(XLIBJVM_DB_DEBUGINFO)
 	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(XLIBJVM_DB_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
@@ -117,7 +125,12 @@
     # implied else here is no stripping at all
     endif
   endif
-	[ -f $(XLIBJVM_DB_G_DEBUGINFO) ] || { ln -s $(LIBJVM_DB_DEBUGINFO) $(XLIBJVM_DB_G_DEBUGINFO); }
+	[ -f $(XLIBJVM_DB_G_DEBUGINFO) ] || { ln -s $(XLIBJVM_DB_DEBUGINFO) $(XLIBJVM_DB_G_DEBUGINFO); }
+  ifeq ($(ZIP_DEBUGINFO_FILES),1)
+	$(ZIPEXE) -q -y $(XLIBJVM_DB_DIZ) $(XLIBJVM_DB_DEBUGINFO) $(XLIBJVM_DB_G_DEBUGINFO)
+	$(RM) $(XLIBJVM_DB_DEBUGINFO) $(XLIBJVM_DB_G_DEBUGINFO)
+	[ -f $(XLIBJVM_DB_G_DIZ) ] || { ln -s $(XLIBJVM_DB_DIZ) $(XLIBJVM_DB_G_DIZ); }
+  endif
 endif
 
 $(XLIBJVM_DTRACE): $(DTRACE_SRCDIR)/$(JVM_DTRACE).c $(DTRACE_SRCDIR)/$(JVM_DTRACE).h $(LIBJVM_DTRACE_MAPFILE)
@@ -126,7 +139,7 @@
 	$(CC) $(SYMFLAG) $(ARCHFLAG/$(ISA)) -D$(TYPE) -I. \
 		$(SHARED_FLAG) $(LFLAGS_JVM_DTRACE) -o $@ $(DTRACE_SRCDIR)/$(JVM_DTRACE).c -lc -lthread -ldoor
 	[ -f $(XLIBJVM_DTRACE_G) ] || { ln -s $(LIBJVM_DTRACE) $(XLIBJVM_DTRACE_G); }
-ifneq ($(OBJCOPY),)
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(XLIBJVM_DTRACE_DEBUGINFO)
 	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(XLIBJVM_DTRACE_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
@@ -137,7 +150,12 @@
     # implied else here is no stripping at all
     endif
   endif
-	[ -f $(XLIBJVM_DTRACE_G_DEBUGINFO) ] || { ln -s $(LIBJVM_DTRACE_DEBUGINFO) $(XLIBJVM_DTRACE_G_DEBUGINFO); }
+	[ -f $(XLIBJVM_DTRACE_G_DEBUGINFO) ] || { ln -s $(XLIBJVM_DTRACE_DEBUGINFO) $(XLIBJVM_DTRACE_G_DEBUGINFO); }
+  ifeq ($(ZIP_DEBUGINFO_FILES),1)
+	$(ZIPEXE) -q -y $(XLIBJVM_DTRACE_DIZ) $(XLIBJVM_DTRACE_DEBUGINFO) $(XLIBJVM_DTRACE_G_DEBUGINFO)
+	$(RM) $(XLIBJVM_DTRACE_DEBUGINFO) $(XLIBJVM_DTRACE_G_DEBUGINFO)
+	[ -f $(XLIBJVM_DTRACE_G_DIZ) ] || { ln -s $(XLIBJVM_DTRACE_DIZ) $(XLIBJVM_DTRACE_G_DIZ); }
+  endif
 endif
 
 endif # ifneq ("${ISA}","${BUILDARCH}")
@@ -185,7 +203,7 @@
 	$(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) -D$(TYPE) -I. -I$(GENERATED) \
 		$(SHARED_FLAG) $(LFLAGS_JVM_DB) -o $@ $(DTRACE_SRCDIR)/$(JVM_DB).c -lc
 	[ -f $(LIBJVM_DB_G) ] || { ln -s $@ $(LIBJVM_DB_G); }
-ifneq ($(OBJCOPY),)
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJVM_DB_DEBUGINFO)
 	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DB_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
@@ -197,6 +215,11 @@
     endif
   endif
 	[ -f $(LIBJVM_DB_G_DEBUGINFO) ] || { ln -s $(LIBJVM_DB_DEBUGINFO) $(LIBJVM_DB_G_DEBUGINFO); }
+  ifeq ($(ZIP_DEBUGINFO_FILES),1)
+	$(ZIPEXE) -q -y $(LIBJVM_DB_DIZ) $(LIBJVM_DB_DEBUGINFO) $(LIBJVM_DB_G_DEBUGINFO)
+	$(RM) $(LIBJVM_DB_DEBUGINFO) $(LIBJVM_DB_G_DEBUGINFO)
+	[ -f $(LIBJVM_DB_G_DIZ) ] || { ln -s $(LIBJVM_DB_DIZ) $(LIBJVM_DB_G_DIZ); }
+  endif
 endif
 
 $(LIBJVM_DTRACE): $(DTRACE_SRCDIR)/$(JVM_DTRACE).c $(XLIBJVM_DTRACE) $(DTRACE_SRCDIR)/$(JVM_DTRACE).h $(LIBJVM_DTRACE_MAPFILE)
@@ -204,7 +227,7 @@
 	$(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) -D$(TYPE) -I.  \
 		$(SHARED_FLAG) $(LFLAGS_JVM_DTRACE) -o $@ $(DTRACE_SRCDIR)/$(JVM_DTRACE).c -lc -lthread -ldoor
 	[ -f $(LIBJVM_DTRACE_G) ] || { ln -s $@ $(LIBJVM_DTRACE_G); }
-ifneq ($(OBJCOPY),)
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJVM_DTRACE_DEBUGINFO)
 	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DTRACE_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
@@ -216,6 +239,11 @@
     endif
   endif
 	[ -f $(LIBJVM_DTRACE_G_DEBUGINFO) ] || { ln -s $(LIBJVM_DTRACE_DEBUGINFO) $(LIBJVM_DTRACE_G_DEBUGINFO); }
+  ifeq ($(ZIP_DEBUGINFO_FILES),1)
+	$(ZIPEXE) -q -y $(LIBJVM_DTRACE_DIZ) $(LIBJVM_DTRACE_DEBUGINFO) $(LIBJVM_DTRACE_G_DEBUGINFO)
+	$(RM) $(LIBJVM_DTRACE_DEBUGINFO) $(LIBJVM_DTRACE_G_DEBUGINFO)
+	[ -f $(LIBJVM_DTRACE_G_DIZ) ] || { ln -s $(LIBJVM_DTRACE_DIZ) $(LIBJVM_DTRACE_G_DIZ); }
+  endif
 endif
 
 $(DTRACE).d: $(DTRACE_SRCDIR)/hotspot.d $(DTRACE_SRCDIR)/hotspot_jni.d \
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/solaris/makefiles/jsig.make
--- a/hotspot/make/solaris/makefiles/jsig.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/solaris/makefiles/jsig.make	Fri May 04 14:10:30 2012 -0700
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2005, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -32,12 +32,15 @@
 LIBJSIG_G = lib$(JSIG_G).so
 
 LIBJSIG_DEBUGINFO   = lib$(JSIG).debuginfo
+LIBJSIG_DIZ         = lib$(JSIG).diz
 LIBJSIG_G_DEBUGINFO = lib$(JSIG_G).debuginfo
+LIBJSIG_G_DIZ       = lib$(JSIG_G).diz
 
 JSIGSRCDIR = $(GAMMADIR)/src/os/$(Platform_os_family)/vm
 
 DEST_JSIG           = $(JDK_LIBDIR)/$(LIBJSIG)
 DEST_JSIG_DEBUGINFO = $(JDK_LIBDIR)/$(LIBJSIG_DEBUGINFO)
+DEST_JSIG_DIZ       = $(JDK_LIBDIR)/$(LIBJSIG_DIZ)
 
 LIBJSIG_MAPFILE = $(MAKEFILES_DIR)/mapfile-vers-jsig
 
@@ -54,7 +57,7 @@
 	$(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) $(SHARED_FLAG) $(PICFLAG) \
                          $(LFLAGS_JSIG) -o $@ $< -ldl
 	[ -f $(LIBJSIG_G) ] || { ln -s $@ $(LIBJSIG_G); }
-ifneq ($(OBJCOPY),)
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJSIG_DEBUGINFO)
 	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJSIG_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
@@ -66,12 +69,19 @@
     endif
   endif
 	[ -f $(LIBJSIG_G_DEBUGINFO) ] || { ln -s $(LIBJSIG_DEBUGINFO) $(LIBJSIG_G_DEBUGINFO); }
+  ifeq ($(ZIP_DEBUGINFO_FILES),1)
+	$(ZIPEXE) -q -y $(LIBJSIG_DIZ) $(LIBJSIG_DEBUGINFO) $(LIBJSIG_G_DEBUGINFO)
+	$(RM) $(LIBJSIG_DEBUGINFO) $(LIBJSIG_G_DEBUGINFO)
+	[ -f $(LIBJSIG_G_DIZ) ] || { ln -s $(LIBJSIG_DIZ) $(LIBJSIG_G_DIZ); }
+  endif
 endif
 
 install_jsig: $(LIBJSIG)
 	@echo "Copying $(LIBJSIG) to $(DEST_JSIG)"
 	$(QUIETLY) test -f $(LIBJSIG_DEBUGINFO) && \
 	    cp -f $(LIBJSIG_DEBUGINFO) $(DEST_JSIG_DEBUGINFO)
+	$(QUIETLY) test -f $(LIBJSIG_DIZ) && \
+	    cp -f $(LIBJSIG_DIZ) $(DEST_JSIG_DIZ)
 	$(QUIETLY) cp -f $(LIBJSIG) $(DEST_JSIG) && echo "Done"
 
 .PHONY: install_jsig
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/solaris/makefiles/saproc.make
--- a/hotspot/make/solaris/makefiles/saproc.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/solaris/makefiles/saproc.make	Fri May 04 14:10:30 2012 -0700
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2005, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -33,7 +33,9 @@
 LIBSAPROC_G = lib$(SAPROC_G).so
 
 LIBSAPROC_DEBUGINFO   = lib$(SAPROC).debuginfo
+LIBSAPROC_DIZ         = lib$(SAPROC).diz
 LIBSAPROC_G_DEBUGINFO = lib$(SAPROC_G).debuginfo
+LIBSAPROC_G_DIZ       = lib$(SAPROC_G).diz
 
 AGENT_DIR = $(GAMMADIR)/agent
 
@@ -45,6 +47,7 @@
 
 DEST_SAPROC           = $(JDK_LIBDIR)/$(LIBSAPROC)
 DEST_SAPROC_DEBUGINFO = $(JDK_LIBDIR)/$(LIBSAPROC_DEBUGINFO)
+DEST_SAPROC_DIZ       = $(JDK_LIBDIR)/$(LIBSAPROC_DIZ)
 
 # if $(AGENT_DIR) does not exist, we don't build SA
 
@@ -105,7 +108,7 @@
 	           -o $@                                                \
 	           -ldl -ldemangle -lthread -lc
 	[ -f $(LIBSAPROC_G) ] || { ln -s $@ $(LIBSAPROC_G); }
-ifneq ($(OBJCOPY),)
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBSAPROC_DEBUGINFO)
 	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBSAPROC_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
@@ -117,6 +120,11 @@
     endif
   endif
 	[ -f $(LIBSAPROC_G_DEBUGINFO) ] || { ln -s $(LIBSAPROC_DEBUGINFO) $(LIBSAPROC_G_DEBUGINFO); }
+  ifeq ($(ZIP_DEBUGINFO_FILES),1)
+	$(ZIPEXE) -q -y $(LIBSAPROC_DIZ) $(LIBSAPROC_DEBUGINFO) $(LIBSAPROC_G_DEBUGINFO)
+	$(RM) $(LIBSAPROC_DEBUGINFO) $(LIBSAPROC_G_DEBUGINFO)
+	[ -f $(LIBSAPROC_G_DIZ) ] || { ln -s $(LIBSAPROC_DIZ) $(LIBSAPROC_G_DIZ); }
+  endif
 endif
 
 install_saproc: $(BULDLIBSAPROC)
@@ -124,6 +132,8 @@
 	  echo "Copying $(LIBSAPROC) to $(DEST_SAPROC)";     \
 	  test -f $(LIBSAPROC_DEBUGINFO) &&             \
 	    cp -f $(LIBSAPROC_DEBUGINFO) $(DEST_SAPROC_DEBUGINFO); \
+	  test -f $(LIBSAPROC_DIZ) &&             \
+	    cp -f $(LIBSAPROC_DIZ) $(DEST_SAPROC_DIZ); \
 	  cp -f $(LIBSAPROC) $(DEST_SAPROC) && echo "Done";  \
 	fi
 
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/solaris/makefiles/sparcWorks.make
--- a/hotspot/make/solaris/makefiles/sparcWorks.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/solaris/makefiles/sparcWorks.make	Fri May 04 14:10:30 2012 -0700
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -488,12 +488,12 @@
 # The -g0 setting allows the C++ frontend to inline, which is a big win.
 # The -xs setting disables 'lazy debug info' which puts everything in
 # the .so instead of requiring the '.o' files.
-ifneq ($(OBJCOPY),)
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
   OPT_CFLAGS += -g0 -xs
 endif
 DEBUG_CFLAGS = -g
 FASTDEBUG_CFLAGS = -g0
-ifneq ($(OBJCOPY),)
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
   DEBUG_CFLAGS += -xs
   FASTDEBUG_CFLAGS += -xs
 endif
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/solaris/makefiles/vm.make
--- a/hotspot/make/solaris/makefiles/vm.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/solaris/makefiles/vm.make	Fri May 04 14:10:30 2012 -0700
@@ -56,7 +56,7 @@
 INCLUDES += $(Src_Dirs_I:%=-I%)
 
 # SYMFLAG is used by {dtrace,jsig,saproc}.make.
-ifneq ($(OBJCOPY),)
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
   # always build with debug info when we can create .debuginfo files
   # and disable 'lazy debug info' so the .so has everything.
   SYMFLAG = -g -xs
@@ -152,7 +152,9 @@
 LIBJVM_G = lib$(JVM)$(G_SUFFIX).so
 
 LIBJVM_DEBUGINFO   = lib$(JVM).debuginfo
+LIBJVM_DIZ         = lib$(JVM).diz
 LIBJVM_G_DEBUGINFO = lib$(JVM)$(G_SUFFIX).debuginfo
+LIBJVM_G_DIZ       = lib$(JVM)$(G_SUFFIX).diz
 
 SPECIAL_PATHS:=adlc c1 dist gc_implementation opto shark libadt
 
@@ -283,7 +285,7 @@
 	$(QUIETLY) rm -f $@.1 && ln -s $@ $@.1
 	$(QUIETLY) [ -f $(LIBJVM_G) ] || ln -s $@ $(LIBJVM_G)
 	$(QUIETLY) [ -f $(LIBJVM_G).1 ] || ln -s $@.1 $(LIBJVM_G).1
-ifneq ($(OBJCOPY),)
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
 	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJVM_DEBUGINFO)
 	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJVM_DEBUGINFO) $@
   ifeq ($(STRIP_POLICY),all_strip)
@@ -295,6 +297,11 @@
     endif
   endif
 	$(QUIETLY) [ -f $(LIBJVM_G_DEBUGINFO) ] || ln -s $(LIBJVM_DEBUGINFO) $(LIBJVM_G_DEBUGINFO)
+  ifeq ($(ZIP_DEBUGINFO_FILES),1)
+	$(ZIPEXE) -q -y $(LIBJVM_DIZ) $(LIBJVM_DEBUGINFO) $(LIBJVM_G_DEBUGINFO)
+	$(RM) $(LIBJVM_DEBUGINFO) $(LIBJVM_G_DEBUGINFO)
+	[ -f $(LIBJVM_G_DIZ) ] || { ln -s $(LIBJVM_DIZ) $(LIBJVM_G_DIZ); }
+  endif
 endif
 endif # filter -sbfast -xsbfast
 
@@ -302,11 +309,14 @@
 DEST_SUBDIR        = $(JDK_LIBDIR)/$(VM_SUBDIR)
 DEST_JVM           = $(DEST_SUBDIR)/$(LIBJVM)
 DEST_JVM_DEBUGINFO = $(DEST_SUBDIR)/$(LIBJVM_DEBUGINFO)
+DEST_JVM_DIZ       = $(DEST_SUBDIR)/$(LIBJVM_DIZ)
 
 install_jvm: $(LIBJVM)
 	@echo "Copying $(LIBJVM) to $(DEST_JVM)"
 	$(QUIETLY) test -f $(LIBJVM_DEBUGINFO) && \
 	    cp -f $(LIBJVM_DEBUGINFO) $(DEST_JVM_DEBUGINFO)
+	$(QUIETLY) test -f $(LIBJVM_DIZ) && \
+	    cp -f $(LIBJVM_DIZ) $(DEST_JVM_DIZ)
 	$(QUIETLY) cp -f $(LIBJVM) $(DEST_JVM) && echo "Done"
 
 #----------------------------------------------------------------------
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/windows/build.make
--- a/hotspot/make/windows/build.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/windows/build.make	Fri May 04 14:10:30 2012 -0700
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -302,6 +302,10 @@
 	@ echo MT=$(MT)						>> $@
 	@ echo RC=$(RC)						>> $@
 	@ sh $(WorkSpace)/make/windows/get_msc_ver.sh		>> $@
+	@ if "$(ENABLE_FULL_DEBUG_SYMBOLS)" NEQ "" echo ENABLE_FULL_DEBUG_SYMBOLS=$(ENABLE_FULL_DEBUG_SYMBOLS) >> $@
+	@ if "$(ZIP_DEBUGINFO_FILES)" NEQ "" echo ZIP_DEBUGINFO_FILES=$(ZIP_DEBUGINFO_FILES) >> $@
+	@ if "$(RM)" NEQ "" echo RM=$(RM)                       >> $@
+	@ if "$(ZIPEXE)" NEQ "" echo ZIPEXE=$(ZIPEXE)           >> $@
 
 checks: checkVariant checkWorkSpace checkSA
 
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/windows/makefiles/compile.make
--- a/hotspot/make/windows/makefiles/compile.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/windows/makefiles/compile.make	Fri May 04 14:10:30 2012 -0700
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -54,8 +54,10 @@
 # These are always used in all compiles
 CXX_FLAGS=/nologo /W3 /WX
 
-# Let's add debug information always too.
+# Let's add debug information when Full Debug Symbols is enabled
+!if "$(ENABLE_FULL_DEBUG_SYMBOLS)" == "1"
 CXX_FLAGS=$(CXX_FLAGS) /Zi
+!endif
 
 # Based on BUILDARCH we add some flags and select the default compiler name
 !if "$(BUILDARCH)" == "ia64"
@@ -239,7 +241,10 @@
 LD_FLAGS= $(LD_FLAGS) kernel32.lib user32.lib gdi32.lib winspool.lib \
  comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib \
  uuid.lib Wsock32.lib winmm.lib /nologo /machine:$(MACHINE) /opt:REF \
- /opt:ICF,8 /map /debug
+ /opt:ICF,8
+!if "$(ENABLE_FULL_DEBUG_SYMBOLS)" == "1"
+LD_FLAGS= $(LD_FLAGS) /map /debug
+!endif
 
 
 !if $(MSC_VER) >= 1600 
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/windows/makefiles/debug.make
--- a/hotspot/make/windows/makefiles/debug.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/windows/makefiles/debug.make	Fri May 04 14:10:30 2012 -0700
@@ -61,6 +61,12 @@
 # separately.  Use ";#2" for .dll and ";#1" for .exe:
 	$(MT) /manifest $@.manifest /outputresource:$@;#2
 !endif
+!if "$(ENABLE_FULL_DEBUG_SYMBOLS)" == "1"
+!if "$(ZIP_DEBUGINFO_FILES)" == "1"
+	$(ZIPEXE) -q $*.diz $*.map $*.pdb
+	$(RM) $*.map $*.pdb
+!endif
+!endif
 
 !include $(WorkSpace)/make/windows/makefiles/shared.make
 !include $(WorkSpace)/make/windows/makefiles/sa.make
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/windows/makefiles/defs.make
--- a/hotspot/make/windows/makefiles/defs.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/windows/makefiles/defs.make	Fri May 04 14:10:30 2012 -0700
@@ -107,6 +107,52 @@
   endif
 endif
 
+# Full Debug Symbols has been enabled on Windows since JDK1.4.1 so
+# there is no need for an "earlier than JDK7 check".
+# The Full Debug Symbols (FDS) default for BUILD_FLAVOR == product
+# builds is enabled with debug info files ZIP'ed to save space. For
+# BUILD_FLAVOR != product builds, FDS is always enabled, after all a
+# debug build without debug info isn't very useful.
+# The ZIP_DEBUGINFO_FILES option only has meaning when FDS is enabled.
+#
+# If you invoke a build with FULL_DEBUG_SYMBOLS=0, then FDS will be
+# disabled for a BUILD_FLAVOR == product build.
+#
+# Note: Use of a different variable name for the FDS override option
+# versus the FDS enabled check is intentional (FULL_DEBUG_SYMBOLS
+# versus ENABLE_FULL_DEBUG_SYMBOLS). For auto build systems that pass
+# in options via environment variables, use of distinct variables
+# prevents strange behaviours. For example, in a BUILD_FLAVOR !=
+# product build, the FULL_DEBUG_SYMBOLS environment variable will be
+# 0, but the ENABLE_FULL_DEBUG_SYMBOLS make variable will be 1. If
+# the same variable name is used, then different values can be picked
+# up by different parts of the build. Just to be clear, we only need
+# two variable names because the incoming option value can be
+# overridden in some situations, e.g., a BUILD_FLAVOR != product
+# build.
+
+ifeq ($(BUILD_FLAVOR), product)
+  FULL_DEBUG_SYMBOLS ?= 1
+  ENABLE_FULL_DEBUG_SYMBOLS = $(FULL_DEBUG_SYMBOLS)
+else
+  # debug variants always get Full Debug Symbols (if available)
+  ENABLE_FULL_DEBUG_SYMBOLS = 1
+endif
+_JUNK_ := $(shell \
+  echo >&2 "INFO: ENABLE_FULL_DEBUG_SYMBOLS=$(ENABLE_FULL_DEBUG_SYMBOLS)")
+MAKE_ARGS += ENABLE_FULL_DEBUG_SYMBOLS=$(ENABLE_FULL_DEBUG_SYMBOLS)
+
+ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+  # Disable ZIP_DEBUGINFO_FILES by default because various tests are
+  # failing in nightly when the debug info files are ZIP'ed.
+  ZIP_DEBUGINFO_FILES ?= 0
+else
+  ZIP_DEBUGINFO_FILES=0
+endif
+MAKE_ARGS += ZIP_DEBUGINFO_FILES=$(ZIP_DEBUGINFO_FILES)
+MAKE_ARGS += RM="$(RM)"
+MAKE_ARGS += ZIPEXE=$(ZIPEXE)
+
 # On 32 bit windows we build server, client and kernel, on 64 bit just server.
 ifeq ($(JVM_VARIANTS),)
   ifeq ($(ARCH_DATA_MODEL), 32)
@@ -193,29 +239,53 @@
 ifeq ($(JVM_VARIANT_SERVER),true)
   EXPORT_LIST += $(EXPORT_SERVER_DIR)/Xusage.txt
   EXPORT_LIST += $(EXPORT_SERVER_DIR)/jvm.$(LIBRARY_SUFFIX)
-  EXPORT_LIST += $(EXPORT_SERVER_DIR)/jvm.pdb
-  EXPORT_LIST += $(EXPORT_SERVER_DIR)/jvm.map
+  ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+    ifeq ($(ZIP_DEBUGINFO_FILES),1)
+      EXPORT_LIST += $(EXPORT_SERVER_DIR)/jvm.diz
+    else
+      EXPORT_LIST += $(EXPORT_SERVER_DIR)/jvm.pdb
+      EXPORT_LIST += $(EXPORT_SERVER_DIR)/jvm.map
+    endif
+  endif
   EXPORT_LIST += $(EXPORT_LIB_DIR)/jvm.lib
 endif
 ifeq ($(JVM_VARIANT_CLIENT),true)
   EXPORT_LIST += $(EXPORT_CLIENT_DIR)/Xusage.txt
   EXPORT_LIST += $(EXPORT_CLIENT_DIR)/jvm.$(LIBRARY_SUFFIX)
-  EXPORT_LIST += $(EXPORT_CLIENT_DIR)/jvm.pdb
-  EXPORT_LIST += $(EXPORT_CLIENT_DIR)/jvm.map
+  ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+    ifeq ($(ZIP_DEBUGINFO_FILES),1)
+      EXPORT_LIST += $(EXPORT_CLIENT_DIR)/jvm.diz
+    else
+      EXPORT_LIST += $(EXPORT_CLIENT_DIR)/jvm.pdb
+      EXPORT_LIST += $(EXPORT_CLIENT_DIR)/jvm.map
+    endif
+  endif
 endif
 ifeq ($(JVM_VARIANT_KERNEL),true)
   EXPORT_LIST += $(EXPORT_KERNEL_DIR)/Xusage.txt
   EXPORT_LIST += $(EXPORT_KERNEL_DIR)/jvm.$(LIBRARY_SUFFIX)
-  EXPORT_LIST += $(EXPORT_KERNEL_DIR)/jvm.pdb
-  EXPORT_LIST += $(EXPORT_KERNEL_DIR)/jvm.map
+  ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+    ifeq ($(ZIP_DEBUGINFO_FILES),1)
+      EXPORT_LIST += $(EXPORT_KERNEL_DIR)/jvm.diz
+    else
+      EXPORT_LIST += $(EXPORT_KERNEL_DIR)/jvm.pdb
+      EXPORT_LIST += $(EXPORT_KERNEL_DIR)/jvm.map
+    endif
+  endif
 endif
 
 EXPORT_LIST += $(EXPORT_JRE_LIB_DIR)/wb.jar
 
 ifeq ($(BUILD_WIN_SA), 1)
   EXPORT_LIST += $(EXPORT_JRE_BIN_DIR)/sawindbg.$(LIBRARY_SUFFIX)
-  EXPORT_LIST += $(EXPORT_JRE_BIN_DIR)/sawindbg.pdb
-  EXPORT_LIST += $(EXPORT_JRE_BIN_DIR)/sawindbg.map
+  ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+    ifeq ($(ZIP_DEBUGINFO_FILES),1)
+      EXPORT_LIST += $(EXPORT_JRE_BIN_DIR)/sawindbg.diz
+    else
+      EXPORT_LIST += $(EXPORT_JRE_BIN_DIR)/sawindbg.pdb
+      EXPORT_LIST += $(EXPORT_JRE_BIN_DIR)/sawindbg.map
+    endif
+  endif
   EXPORT_LIST += $(EXPORT_LIB_DIR)/sa-jdi.jar
   # Must pass this down to nmake.
   MAKE_ARGS += BUILD_WIN_SA=1
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/windows/makefiles/fastdebug.make
--- a/hotspot/make/windows/makefiles/fastdebug.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/windows/makefiles/fastdebug.make	Fri May 04 14:10:30 2012 -0700
@@ -61,6 +61,12 @@
 # separately.  Use ";#2" for .dll and ";#1" for .exe:
 	$(MT) /manifest $@.manifest /outputresource:$@;#2
 !endif
+!if "$(ENABLE_FULL_DEBUG_SYMBOLS)" == "1"
+!if "$(ZIP_DEBUGINFO_FILES)" == "1"
+	$(ZIPEXE) -q $*.diz $*.map $*.pdb
+	$(RM) $*.map $*.pdb
+!endif
+!endif
 
 !include $(WorkSpace)/make/windows/makefiles/shared.make
 !include $(WorkSpace)/make/windows/makefiles/sa.make
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/windows/makefiles/product.make
--- a/hotspot/make/windows/makefiles/product.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/windows/makefiles/product.make	Fri May 04 14:10:30 2012 -0700
@@ -72,6 +72,12 @@
 # separately.  Use ";#2" for .dll and ";#1" for .exe:
 	$(MT) /manifest $@.manifest /outputresource:$@;#2
 !endif
+!if "$(ENABLE_FULL_DEBUG_SYMBOLS)" == "1"
+!if "$(ZIP_DEBUGINFO_FILES)" == "1"
+	$(ZIPEXE) -q $*.diz $*.map $*.pdb
+	$(RM) $*.map $*.pdb
+!endif
+!endif
 
 !include $(WorkSpace)/make/windows/makefiles/shared.make
 !include $(WorkSpace)/make/windows/makefiles/sa.make
diff -r b3a91113026c -r 6123dd756c56 hotspot/make/windows/makefiles/sa.make
--- a/hotspot/make/windows/makefiles/sa.make	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/make/windows/makefiles/sa.make	Fri May 04 14:10:30 2012 -0700
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -94,13 +94,19 @@
 SA_LD_FLAGS = bufferoverflowU.lib
 !endif
 !else
-SA_CFLAGS = /nologo $(MS_RUNTIME_OPTION) /W3 /Gm $(GX_OPTION) /ZI /Od /D "WIN32" /D "_WINDOWS" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /GZ /c
+SA_CFLAGS = /nologo $(MS_RUNTIME_OPTION) /W3 /Gm $(GX_OPTION) /Od /D "WIN32" /D "_WINDOWS" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /GZ /c
+!if "$(ENABLE_FULL_DEBUG_SYMBOLS)" == "1"
+SA_CFLAGS = $(SA_CFLAGS) /ZI
+!endif
 !endif
 !if "$(MT)" != ""
 SA_LD_FLAGS = /manifest $(SA_LD_FLAGS)
 !endif
 SASRCFILE = $(AGENT_DIR)/src/os/win32/windbg/sawindbg.cpp
-SA_LFLAGS = $(SA_LD_FLAGS) /nologo /subsystem:console /map /debug /machine:$(MACHINE)
+SA_LFLAGS = $(SA_LD_FLAGS) /nologo /subsystem:console /machine:$(MACHINE)
+!if "$(ENABLE_FULL_DEBUG_SYMBOLS)" == "1"
+SA_LFLAGS = $(SA_LFLAGS) /map /debug
+!endif
 
 # Note that we do not keep sawindbj.obj around as it would then
 # get included in the dumpbin command in build_vm_def.sh
@@ -114,14 +120,20 @@
 	  /I"$(BootStrapDir)/include" /I"$(BootStrapDir)/include/win32" 
 	  /I"$(GENERATED)" $(SA_CFLAGS)
 	  $(SASRCFILE)
-	  /out:sawindbg.obj
+	  /out:$*.obj
 <<
 	set LIB=$(SA_LIB)$(LIB)
-	$(LD) /out:$@ /DLL sawindbg.obj dbgeng.lib $(SA_LFLAGS)
+	$(LD) /out:$@ /DLL $*.obj dbgeng.lib $(SA_LFLAGS)
 !if "$(MT)" != ""
 	$(MT) /manifest $(@F).manifest /outputresource:$(@F);#2
 !endif
-	-@rm -f sawindbg.obj
+!if "$(ENABLE_FULL_DEBUG_SYMBOLS)" == "1"
+!if "$(ZIP_DEBUGINFO_FILES)" == "1"
+	$(ZIPEXE) -q $*.diz $*.map $*.pdb
+	$(RM) $*.map $*.pdb
+!endif
+!endif
+	-@rm -f $*.obj
 
 cleanall :
 	rm -rf $(GENERATED:\=/)/saclasses
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/os/solaris/vm/attachListener_solaris.cpp
--- a/hotspot/src/os/solaris/vm/attachListener_solaris.cpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/os/solaris/vm/attachListener_solaris.cpp	Fri May 04 14:10:30 2012 -0700
@@ -336,7 +336,9 @@
     // Return 0 (success) + file descriptor, or non-0 (error)
     if (res == 0) {
       door_desc_t desc;
-      desc.d_attributes = DOOR_DESCRIPTOR;
+      // DOOR_RELEASE flag makes sure fd is closed after passing it to
+      // the client.  See door_return(3DOOR) man page.
+      desc.d_attributes = DOOR_DESCRIPTOR | DOOR_RELEASE;
       desc.d_data.d_desc.d_descriptor = return_fd;
       door_return((char*)&res, sizeof(res), &desc, 1);
     } else {
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/binaryTreeDictionary.cpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/binaryTreeDictionary.cpp	Wed Jul 05 18:09:43 2017 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1257 +0,0 @@
-/*
- * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#include "precompiled.hpp"
-#include "gc_implementation/concurrentMarkSweep/binaryTreeDictionary.hpp"
-#include "gc_implementation/shared/allocationStats.hpp"
-#include "gc_implementation/shared/spaceDecorator.hpp"
-#include "memory/space.inline.hpp"
-#include "runtime/globals.hpp"
-#include "utilities/ostream.hpp"
-
-////////////////////////////////////////////////////////////////////////////////
-// A binary tree based search structure for free blocks.
-// This is currently used in the Concurrent Mark&Sweep implementation.
-////////////////////////////////////////////////////////////////////////////////
-
-TreeChunk* TreeChunk::as_TreeChunk(FreeChunk* fc) {
-  // Do some assertion checking here.
-  return (TreeChunk*) fc;
-}
-
-void TreeChunk::verifyTreeChunkList() const {
-  TreeChunk* nextTC = (TreeChunk*)next();
-  if (prev() != NULL) { // interior list node shouldn'r have tree fields
-    guarantee(embedded_list()->parent() == NULL && embedded_list()->left() == NULL &&
-              embedded_list()->right()  == NULL, "should be clear");
-  }
-  if (nextTC != NULL) {
-    guarantee(as_TreeChunk(nextTC->prev()) == this, "broken chain");
-    guarantee(nextTC->size() == size(), "wrong size");
-    nextTC->verifyTreeChunkList();
-  }
-}
-
-
-TreeList* TreeList::as_TreeList(TreeChunk* tc) {
-  // This first free chunk in the list will be the tree list.
-  assert(tc->size() >= sizeof(TreeChunk), "Chunk is too small for a TreeChunk");
-  TreeList* tl = tc->embedded_list();
-  tc->set_list(tl);
-#ifdef ASSERT
-  tl->set_protecting_lock(NULL);
-#endif
-  tl->set_hint(0);
-  tl->set_size(tc->size());
-  tl->link_head(tc);
-  tl->link_tail(tc);
-  tl->set_count(1);
-  tl->init_statistics(true /* split_birth */);
-  tl->setParent(NULL);
-  tl->setLeft(NULL);
-  tl->setRight(NULL);
-  return tl;
-}
-
-TreeList* TreeList::as_TreeList(HeapWord* addr, size_t size) {
-  TreeChunk* tc = (TreeChunk*) addr;
-  assert(size >= sizeof(TreeChunk), "Chunk is too small for a TreeChunk");
-  // The space in the heap will have been mangled initially but
-  // is not remangled when a free chunk is returned to the free list
-  // (since it is used to maintain the chunk on the free list).
-  assert((ZapUnusedHeapArea &&
-          SpaceMangler::is_mangled((HeapWord*) tc->size_addr()) &&
-          SpaceMangler::is_mangled((HeapWord*) tc->prev_addr()) &&
-          SpaceMangler::is_mangled((HeapWord*) tc->next_addr())) ||
-          (tc->size() == 0 && tc->prev() == NULL && tc->next() == NULL),
-    "Space should be clear or mangled");
-  tc->setSize(size);
-  tc->linkPrev(NULL);
-  tc->linkNext(NULL);
-  TreeList* tl = TreeList::as_TreeList(tc);
-  return tl;
-}
-
-TreeList* TreeList::removeChunkReplaceIfNeeded(TreeChunk* tc) {
-
-  TreeList* retTL = this;
-  FreeChunk* list = head();
-  assert(!list || list != list->next(), "Chunk on list twice");
-  assert(tc != NULL, "Chunk being removed is NULL");
-  assert(parent() == NULL || this == parent()->left() ||
-    this == parent()->right(), "list is inconsistent");
-  assert(tc->isFree(), "Header is not marked correctly");
-  assert(head() == NULL || head()->prev() == NULL, "list invariant");
-  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
-
-  FreeChunk* prevFC = tc->prev();
-  TreeChunk* nextTC = TreeChunk::as_TreeChunk(tc->next());
-  assert(list != NULL, "should have at least the target chunk");
-
-  // Is this the first item on the list?
-  if (tc == list) {
-    // The "getChunk..." functions for a TreeList will not return the
-    // first chunk in the list unless it is the last chunk in the list
-    // because the first chunk is also acting as the tree node.
-    // When coalescing happens, however, the first chunk in the a tree
-    // list can be the start of a free range.  Free ranges are removed
-    // from the free lists so that they are not available to be
-    // allocated when the sweeper yields (giving up the free list lock)
-    // to allow mutator activity.  If this chunk is the first in the
-    // list and is not the last in the list, do the work to copy the
-    // TreeList from the first chunk to the next chunk and update all
-    // the TreeList pointers in the chunks in the list.
-    if (nextTC == NULL) {
-      assert(prevFC == NULL, "Not last chunk in the list");
-      set_tail(NULL);
-      set_head(NULL);
-    } else {
-      // copy embedded list.
-      nextTC->set_embedded_list(tc->embedded_list());
-      retTL = nextTC->embedded_list();
-      // Fix the pointer to the list in each chunk in the list.
-      // This can be slow for a long list.  Consider having
-      // an option that does not allow the first chunk on the
-      // list to be coalesced.
-      for (TreeChunk* curTC = nextTC; curTC != NULL;
-          curTC = TreeChunk::as_TreeChunk(curTC->next())) {
-        curTC->set_list(retTL);
-      }
-      // Fix the parent to point to the new TreeList.
-      if (retTL->parent() != NULL) {
-        if (this == retTL->parent()->left()) {
-          retTL->parent()->setLeft(retTL);
-        } else {
-          assert(this == retTL->parent()->right(), "Parent is incorrect");
-          retTL->parent()->setRight(retTL);
-        }
-      }
-      // Fix the children's parent pointers to point to the
-      // new list.
-      assert(right() == retTL->right(), "Should have been copied");
-      if (retTL->right() != NULL) {
-        retTL->right()->setParent(retTL);
-      }
-      assert(left() == retTL->left(), "Should have been copied");
-      if (retTL->left() != NULL) {
-        retTL->left()->setParent(retTL);
-      }
-      retTL->link_head(nextTC);
-      assert(nextTC->isFree(), "Should be a free chunk");
-    }
-  } else {
-    if (nextTC == NULL) {
-      // Removing chunk at tail of list
-      link_tail(prevFC);
-    }
-    // Chunk is interior to the list
-    prevFC->linkAfter(nextTC);
-  }
-
-  // Below this point the embeded TreeList being used for the
-  // tree node may have changed. Don't use "this"
-  // TreeList*.
-  // chunk should still be a free chunk (bit set in _prev)
-  assert(!retTL->head() || retTL->size() == retTL->head()->size(),
-    "Wrong sized chunk in list");
-  debug_only(
-    tc->linkPrev(NULL);
-    tc->linkNext(NULL);
-    tc->set_list(NULL);
-    bool prev_found = false;
-    bool next_found = false;
-    for (FreeChunk* curFC = retTL->head();
-         curFC != NULL; curFC = curFC->next()) {
-      assert(curFC != tc, "Chunk is still in list");
-      if (curFC == prevFC) {
-        prev_found = true;
-      }
-      if (curFC == nextTC) {
-        next_found = true;
-      }
-    }
-    assert(prevFC == NULL || prev_found, "Chunk was lost from list");
-    assert(nextTC == NULL || next_found, "Chunk was lost from list");
-    assert(retTL->parent() == NULL ||
-           retTL == retTL->parent()->left() ||
-           retTL == retTL->parent()->right(),
-           "list is inconsistent");
-  )
-  retTL->decrement_count();
-
-  assert(tc->isFree(), "Should still be a free chunk");
-  assert(retTL->head() == NULL || retTL->head()->prev() == NULL,
-    "list invariant");
-  assert(retTL->tail() == NULL || retTL->tail()->next() == NULL,
-    "list invariant");
-  return retTL;
-}
-void TreeList::returnChunkAtTail(TreeChunk* chunk) {
-  assert(chunk != NULL, "returning NULL chunk");
-  assert(chunk->list() == this, "list should be set for chunk");
-  assert(tail() != NULL, "The tree list is embedded in the first chunk");
-  // which means that the list can never be empty.
-  assert(!verifyChunkInFreeLists(chunk), "Double entry");
-  assert(head() == NULL || head()->prev() == NULL, "list invariant");
-  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
-
-  FreeChunk* fc = tail();
-  fc->linkAfter(chunk);
-  link_tail(chunk);
-
-  assert(!tail() || size() == tail()->size(), "Wrong sized chunk in list");
-  increment_count();
-  debug_only(increment_returnedBytes_by(chunk->size()*sizeof(HeapWord));)
-  assert(head() == NULL || head()->prev() == NULL, "list invariant");
-  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
-}
-
-// Add this chunk at the head of the list.  "At the head of the list"
-// is defined to be after the chunk pointer to by head().  This is
-// because the TreeList is embedded in the first TreeChunk in the
-// list.  See the definition of TreeChunk.
-void TreeList::returnChunkAtHead(TreeChunk* chunk) {
-  assert(chunk->list() == this, "list should be set for chunk");
-  assert(head() != NULL, "The tree list is embedded in the first chunk");
-  assert(chunk != NULL, "returning NULL chunk");
-  assert(!verifyChunkInFreeLists(chunk), "Double entry");
-  assert(head() == NULL || head()->prev() == NULL, "list invariant");
-  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
-
-  FreeChunk* fc = head()->next();
-  if (fc != NULL) {
-    chunk->linkAfter(fc);
-  } else {
-    assert(tail() == NULL, "List is inconsistent");
-    link_tail(chunk);
-  }
-  head()->linkAfter(chunk);
-  assert(!head() || size() == head()->size(), "Wrong sized chunk in list");
-  increment_count();
-  debug_only(increment_returnedBytes_by(chunk->size()*sizeof(HeapWord));)
-  assert(head() == NULL || head()->prev() == NULL, "list invariant");
-  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
-}
-
-TreeChunk* TreeList::head_as_TreeChunk() {
-  assert(head() == NULL || TreeChunk::as_TreeChunk(head())->list() == this,
-    "Wrong type of chunk?");
-  return TreeChunk::as_TreeChunk(head());
-}
-
-TreeChunk* TreeList::first_available() {
-  assert(head() != NULL, "The head of the list cannot be NULL");
-  FreeChunk* fc = head()->next();
-  TreeChunk* retTC;
-  if (fc == NULL) {
-    retTC = head_as_TreeChunk();
-  } else {
-    retTC = TreeChunk::as_TreeChunk(fc);
-  }
-  assert(retTC->list() == this, "Wrong type of chunk.");
-  return retTC;
-}
-
-// Returns the block with the largest heap address amongst
-// those in the list for this size; potentially slow and expensive,
-// use with caution!
-TreeChunk* TreeList::largest_address() {
-  assert(head() != NULL, "The head of the list cannot be NULL");
-  FreeChunk* fc = head()->next();
-  TreeChunk* retTC;
-  if (fc == NULL) {
-    retTC = head_as_TreeChunk();
-  } else {
-    // walk down the list and return the one with the highest
-    // heap address among chunks of this size.
-    FreeChunk* last = fc;
-    while (fc->next() != NULL) {
-      if ((HeapWord*)last < (HeapWord*)fc) {
-        last = fc;
-      }
-      fc = fc->next();
-    }
-    retTC = TreeChunk::as_TreeChunk(last);
-  }
-  assert(retTC->list() == this, "Wrong type of chunk.");
-  return retTC;
-}
-
-BinaryTreeDictionary::BinaryTreeDictionary(MemRegion mr, bool splay):
-  _splay(splay)
-{
-  assert(mr.byte_size() > MIN_TREE_CHUNK_SIZE, "minimum chunk size");
-
-  reset(mr);
-  assert(root()->left() == NULL, "reset check failed");
-  assert(root()->right() == NULL, "reset check failed");
-  assert(root()->head()->next() == NULL, "reset check failed");
-  assert(root()->head()->prev() == NULL, "reset check failed");
-  assert(totalSize() == root()->size(), "reset check failed");
-  assert(totalFreeBlocks() == 1, "reset check failed");
-}
-
-void BinaryTreeDictionary::inc_totalSize(size_t inc) {
-  _totalSize = _totalSize + inc;
-}
-
-void BinaryTreeDictionary::dec_totalSize(size_t dec) {
-  _totalSize = _totalSize - dec;
-}
-
-void BinaryTreeDictionary::reset(MemRegion mr) {
-  assert(mr.byte_size() > MIN_TREE_CHUNK_SIZE, "minimum chunk size");
-  set_root(TreeList::as_TreeList(mr.start(), mr.word_size()));
-  set_totalSize(mr.word_size());
-  set_totalFreeBlocks(1);
-}
-
-void BinaryTreeDictionary::reset(HeapWord* addr, size_t byte_size) {
-  MemRegion mr(addr, heap_word_size(byte_size));
-  reset(mr);
-}
-
-void BinaryTreeDictionary::reset() {
-  set_root(NULL);
-  set_totalSize(0);
-  set_totalFreeBlocks(0);
-}
-
-// Get a free block of size at least size from tree, or NULL.
-// If a splay step is requested, the removal algorithm (only) incorporates
-// a splay step as follows:
-// . the search proceeds down the tree looking for a possible
-//   match. At the (closest) matching location, an appropriate splay step is applied
-//   (zig, zig-zig or zig-zag). A chunk of the appropriate size is then returned
-//   if available, and if it's the last chunk, the node is deleted. A deteleted
-//   node is replaced in place by its tree successor.
-TreeChunk*
-BinaryTreeDictionary::getChunkFromTree(size_t size, Dither dither, bool splay)
-{
-  TreeList *curTL, *prevTL;
-  TreeChunk* retTC = NULL;
-  assert(size >= MIN_TREE_CHUNK_SIZE, "minimum chunk size");
-  if (FLSVerifyDictionary) {
-    verifyTree();
-  }
-  // starting at the root, work downwards trying to find match.
-  // Remember the last node of size too great or too small.
-  for (prevTL = curTL = root(); curTL != NULL;) {
-    if (curTL->size() == size) {        // exact match
-      break;
-    }
-    prevTL = curTL;
-    if (curTL->size() < size) {        // proceed to right sub-tree
-      curTL = curTL->right();
-    } else {                           // proceed to left sub-tree
-      assert(curTL->size() > size, "size inconsistency");
-      curTL = curTL->left();
-    }
-  }
-  if (curTL == NULL) { // couldn't find exact match
-    // try and find the next larger size by walking back up the search path
-    for (curTL = prevTL; curTL != NULL;) {
-      if (curTL->size() >= size) break;
-      else curTL = curTL->parent();
-    }
-    assert(curTL == NULL || curTL->count() > 0,
-      "An empty list should not be in the tree");
-  }
-  if (curTL != NULL) {
-    assert(curTL->size() >= size, "size inconsistency");
-    if (UseCMSAdaptiveFreeLists) {
-
-      // A candidate chunk has been found.  If it is already under
-      // populated, get a chunk associated with the hint for this
-      // chunk.
-      if (curTL->surplus() <= 0) {
-        /* Use the hint to find a size with a surplus, and reset the hint. */
-        TreeList* hintTL = curTL;
-        while (hintTL->hint() != 0) {
-          assert(hintTL->hint() == 0 || hintTL->hint() > hintTL->size(),
-            "hint points in the wrong direction");
-          hintTL = findList(hintTL->hint());
-          assert(curTL != hintTL, "Infinite loop");
-          if (hintTL == NULL ||
-              hintTL == curTL /* Should not happen but protect against it */ ) {
-            // No useful hint.  Set the hint to NULL and go on.
-            curTL->set_hint(0);
-            break;
-          }
-          assert(hintTL->size() > size, "hint is inconsistent");
-          if (hintTL->surplus() > 0) {
-            // The hint led to a list that has a surplus.  Use it.
-            // Set the hint for the candidate to an overpopulated
-            // size.
-            curTL->set_hint(hintTL->size());
-            // Change the candidate.
-            curTL = hintTL;
-            break;
-          }
-          // The evm code reset the hint of the candidate as
-          // at an interim point.  Why?  Seems like this leaves
-          // the hint pointing to a list that didn't work.
-          // curTL->set_hint(hintTL->size());
-        }
-      }
-    }
-    // don't waste time splaying if chunk's singleton
-    if (splay && curTL->head()->next() != NULL) {
-      semiSplayStep(curTL);
-    }
-    retTC = curTL->first_available();
-    assert((retTC != NULL) && (curTL->count() > 0),
-      "A list in the binary tree should not be NULL");
-    assert(retTC->size() >= size,
-      "A chunk of the wrong size was found");
-    removeChunkFromTree(retTC);
-    assert(retTC->isFree(), "Header is not marked correctly");
-  }
-
-  if (FLSVerifyDictionary) {
-    verify();
-  }
-  return retTC;
-}
-
-TreeList* BinaryTreeDictionary::findList(size_t size) const {
-  TreeList* curTL;
-  for (curTL = root(); curTL != NULL;) {
-    if (curTL->size() == size) {        // exact match
-      break;
-    }
-
-    if (curTL->size() < size) {        // proceed to right sub-tree
-      curTL = curTL->right();
-    } else {                           // proceed to left sub-tree
-      assert(curTL->size() > size, "size inconsistency");
-      curTL = curTL->left();
-    }
-  }
-  return curTL;
-}
-
-
-bool BinaryTreeDictionary::verifyChunkInFreeLists(FreeChunk* tc) const {
-  size_t size = tc->size();
-  TreeList* tl = findList(size);
-  if (tl == NULL) {
-    return false;
-  } else {
-    return tl->verifyChunkInFreeLists(tc);
-  }
-}
-
-FreeChunk* BinaryTreeDictionary::findLargestDict() const {
-  TreeList *curTL = root();
-  if (curTL != NULL) {
-    while(curTL->right() != NULL) curTL = curTL->right();
-    return curTL->largest_address();
-  } else {
-    return NULL;
-  }
-}
-
-// Remove the current chunk from the tree.  If it is not the last
-// chunk in a list on a tree node, just unlink it.
-// If it is the last chunk in the list (the next link is NULL),
-// remove the node and repair the tree.
-TreeChunk*
-BinaryTreeDictionary::removeChunkFromTree(TreeChunk* tc) {
-  assert(tc != NULL, "Should not call with a NULL chunk");
-  assert(tc->isFree(), "Header is not marked correctly");
-
-  TreeList *newTL, *parentTL;
-  TreeChunk* retTC;
-  TreeList* tl = tc->list();
-  debug_only(
-    bool removing_only_chunk = false;
-    if (tl == _root) {
-      if ((_root->left() == NULL) && (_root->right() == NULL)) {
-        if (_root->count() == 1) {
-          assert(_root->head() == tc, "Should only be this one chunk");
-          removing_only_chunk = true;
-        }
-      }
-    }
-  )
-  assert(tl != NULL, "List should be set");
-  assert(tl->parent() == NULL || tl == tl->parent()->left() ||
-         tl == tl->parent()->right(), "list is inconsistent");
-
-  bool complicatedSplice = false;
-
-  retTC = tc;
-  // Removing this chunk can have the side effect of changing the node
-  // (TreeList*) in the tree.  If the node is the root, update it.
-  TreeList* replacementTL = tl->removeChunkReplaceIfNeeded(tc);
-  assert(tc->isFree(), "Chunk should still be free");
-  assert(replacementTL->parent() == NULL ||
-         replacementTL == replacementTL->parent()->left() ||
-         replacementTL == replacementTL->parent()->right(),
-         "list is inconsistent");
-  if (tl == root()) {
-    assert(replacementTL->parent() == NULL, "Incorrectly replacing root");
-    set_root(replacementTL);
-  }
-  debug_only(
-    if (tl != replacementTL) {
-      assert(replacementTL->head() != NULL,
-        "If the tree list was replaced, it should not be a NULL list");
-      TreeList* rhl = replacementTL->head_as_TreeChunk()->list();
-      TreeList* rtl = TreeChunk::as_TreeChunk(replacementTL->tail())->list();
-      assert(rhl == replacementTL, "Broken head");
-      assert(rtl == replacementTL, "Broken tail");
-      assert(replacementTL->size() == tc->size(),  "Broken size");
-    }
-  )
-
-  // Does the tree need to be repaired?
-  if (replacementTL->count() == 0) {
-    assert(replacementTL->head() == NULL &&
-           replacementTL->tail() == NULL, "list count is incorrect");
-    // Find the replacement node for the (soon to be empty) node being removed.
-    // if we have a single (or no) child, splice child in our stead
-    if (replacementTL->left() == NULL) {
-      // left is NULL so pick right.  right may also be NULL.
-      newTL = replacementTL->right();
-      debug_only(replacementTL->clearRight();)
-    } else if (replacementTL->right() == NULL) {
-      // right is NULL
-      newTL = replacementTL->left();
-      debug_only(replacementTL->clearLeft();)
-    } else {  // we have both children, so, by patriarchal convention,
-              // my replacement is least node in right sub-tree
-      complicatedSplice = true;
-      newTL = removeTreeMinimum(replacementTL->right());
-      assert(newTL != NULL && newTL->left() == NULL &&
-             newTL->right() == NULL, "sub-tree minimum exists");
-    }
-    // newTL is the replacement for the (soon to be empty) node.
-    // newTL may be NULL.
-    // should verify; we just cleanly excised our replacement
-    if (FLSVerifyDictionary) {
-      verifyTree();
-    }
-    // first make newTL my parent's child
-    if ((parentTL = replacementTL->parent()) == NULL) {
-      // newTL should be root
-      assert(tl == root(), "Incorrectly replacing root");
-      set_root(newTL);
-      if (newTL != NULL) {
-        newTL->clearParent();
-      }
-    } else if (parentTL->right() == replacementTL) {
-      // replacementTL is a right child
-      parentTL->setRight(newTL);
-    } else {                                // replacementTL is a left child
-      assert(parentTL->left() == replacementTL, "should be left child");
-      parentTL->setLeft(newTL);
-    }
-    debug_only(replacementTL->clearParent();)
-    if (complicatedSplice) {  // we need newTL to get replacementTL's
-                              // two children
-      assert(newTL != NULL &&
-             newTL->left() == NULL && newTL->right() == NULL,
-            "newTL should not have encumbrances from the past");
-      // we'd like to assert as below:
-      // assert(replacementTL->left() != NULL && replacementTL->right() != NULL,
-      //       "else !complicatedSplice");
-      // ... however, the above assertion is too strong because we aren't
-      // guaranteed that replacementTL->right() is still NULL.
-      // Recall that we removed
-      // the right sub-tree minimum from replacementTL.
-      // That may well have been its right
-      // child! So we'll just assert half of the above:
-      assert(replacementTL->left() != NULL, "else !complicatedSplice");
-      newTL->setLeft(replacementTL->left());
-      newTL->setRight(replacementTL->right());
-      debug_only(
-        replacementTL->clearRight();
-        replacementTL->clearLeft();
-      )
-    }
-    assert(replacementTL->right() == NULL &&
-           replacementTL->left() == NULL &&
-           replacementTL->parent() == NULL,
-        "delete without encumbrances");
-  }
-
-  assert(totalSize() >= retTC->size(), "Incorrect total size");
-  dec_totalSize(retTC->size());     // size book-keeping
-  assert(totalFreeBlocks() > 0, "Incorrect total count");
-  set_totalFreeBlocks(totalFreeBlocks() - 1);
-
-  assert(retTC != NULL, "null chunk?");
-  assert(retTC->prev() == NULL && retTC->next() == NULL,
-         "should return without encumbrances");
-  if (FLSVerifyDictionary) {
-    verifyTree();
-  }
-  assert(!removing_only_chunk || _root == NULL, "root should be NULL");
-  return TreeChunk::as_TreeChunk(retTC);
-}
-
-// Remove the leftmost node (lm) in the tree and return it.
-// If lm has a right child, link it to the left node of
-// the parent of lm.
-TreeList* BinaryTreeDictionary::removeTreeMinimum(TreeList* tl) {
-  assert(tl != NULL && tl->parent() != NULL, "really need a proper sub-tree");
-  // locate the subtree minimum by walking down left branches
-  TreeList* curTL = tl;
-  for (; curTL->left() != NULL; curTL = curTL->left());
-  // obviously curTL now has at most one child, a right child
-  if (curTL != root()) {  // Should this test just be removed?
-    TreeList* parentTL = curTL->parent();
-    if (parentTL->left() == curTL) { // curTL is a left child
-      parentTL->setLeft(curTL->right());
-    } else {
-      // If the list tl has no left child, then curTL may be
-      // the right child of parentTL.
-      assert(parentTL->right() == curTL, "should be a right child");
-      parentTL->setRight(curTL->right());
-    }
-  } else {
-    // The only use of this method would not pass the root of the
-    // tree (as indicated by the assertion above that the tree list
-    // has a parent) but the specification does not explicitly exclude the
-    // passing of the root so accomodate it.
-    set_root(NULL);
-  }
-  debug_only(
-    curTL->clearParent();  // Test if this needs to be cleared
-    curTL->clearRight();    // recall, above, left child is already null
-  )
-  // we just excised a (non-root) node, we should still verify all tree invariants
-  if (FLSVerifyDictionary) {
-    verifyTree();
-  }
-  return curTL;
-}
-
-// Based on a simplification of the algorithm by Sleator and Tarjan (JACM 1985).
-// The simplifications are the following:
-// . we splay only when we delete (not when we insert)
-// . we apply a single spay step per deletion/access
-// By doing such partial splaying, we reduce the amount of restructuring,
-// while getting a reasonably efficient search tree (we think).
-// [Measurements will be needed to (in)validate this expectation.]
-
-void BinaryTreeDictionary::semiSplayStep(TreeList* tc) {
-  // apply a semi-splay step at the given node:
-  // . if root, norting needs to be done
-  // . if child of root, splay once
-  // . else zig-zig or sig-zag depending on path from grandparent
-  if (root() == tc) return;
-  warning("*** Splaying not yet implemented; "
-          "tree operations may be inefficient ***");
-}
-
-void BinaryTreeDictionary::insertChunkInTree(FreeChunk* fc) {
-  TreeList *curTL, *prevTL;
-  size_t size = fc->size();
-
-  assert(size >= MIN_TREE_CHUNK_SIZE, "too small to be a TreeList");
-  if (FLSVerifyDictionary) {
-    verifyTree();
-  }
-  // XXX: do i need to clear the FreeChunk fields, let me do it just in case
-  // Revisit this later
-
-  fc->clearNext();
-  fc->linkPrev(NULL);
-
-  // work down from the _root, looking for insertion point
-  for (prevTL = curTL = root(); curTL != NULL;) {
-    if (curTL->size() == size)  // exact match
-      break;
-    prevTL = curTL;
-    if (curTL->size() > size) { // follow left branch
-      curTL = curTL->left();
-    } else {                    // follow right branch
-      assert(curTL->size() < size, "size inconsistency");
-      curTL = curTL->right();
-    }
-  }
-  TreeChunk* tc = TreeChunk::as_TreeChunk(fc);
-  // This chunk is being returned to the binary tree.  Its embedded
-  // TreeList should be unused at this point.
-  tc->initialize();
-  if (curTL != NULL) {          // exact match
-    tc->set_list(curTL);
-    curTL->returnChunkAtTail(tc);
-  } else {                     // need a new node in tree
-    tc->clearNext();
-    tc->linkPrev(NULL);
-    TreeList* newTL = TreeList::as_TreeList(tc);
-    assert(((TreeChunk*)tc)->list() == newTL,
-      "List was not initialized correctly");
-    if (prevTL == NULL) {      // we are the only tree node
-      assert(root() == NULL, "control point invariant");
-      set_root(newTL);
-    } else {                   // insert under prevTL ...
-      if (prevTL->size() < size) {   // am right child
-        assert(prevTL->right() == NULL, "control point invariant");
-        prevTL->setRight(newTL);
-      } else {                       // am left child
-        assert(prevTL->size() > size && prevTL->left() == NULL, "cpt pt inv");
-        prevTL->setLeft(newTL);
-      }
-    }
-  }
-  assert(tc->list() != NULL, "Tree list should be set");
-
-  inc_totalSize(size);
-  // Method 'totalSizeInTree' walks through the every block in the
-  // tree, so it can cause significant performance loss if there are
-  // many blocks in the tree
-  assert(!FLSVerifyDictionary || totalSizeInTree(root()) == totalSize(), "_totalSize inconsistency");
-  set_totalFreeBlocks(totalFreeBlocks() + 1);
-  if (FLSVerifyDictionary) {
-    verifyTree();
-  }
-}
-
-size_t BinaryTreeDictionary::maxChunkSize() const {
-  verify_par_locked();
-  TreeList* tc = root();
-  if (tc == NULL) return 0;
-  for (; tc->right() != NULL; tc = tc->right());
-  return tc->size();
-}
-
-size_t BinaryTreeDictionary::totalListLength(TreeList* tl) const {
-  size_t res;
-  res = tl->count();
-#ifdef ASSERT
-  size_t cnt;
-  FreeChunk* tc = tl->head();
-  for (cnt = 0; tc != NULL; tc = tc->next(), cnt++);
-  assert(res == cnt, "The count is not being maintained correctly");
-#endif
-  return res;
-}
-
-size_t BinaryTreeDictionary::totalSizeInTree(TreeList* tl) const {
-  if (tl == NULL)
-    return 0;
-  return (tl->size() * totalListLength(tl)) +
-         totalSizeInTree(tl->left())    +
-         totalSizeInTree(tl->right());
-}
-
-double BinaryTreeDictionary::sum_of_squared_block_sizes(TreeList* const tl) const {
-  if (tl == NULL) {
-    return 0.0;
-  }
-  double size = (double)(tl->size());
-  double curr = size * size * totalListLength(tl);
-  curr += sum_of_squared_block_sizes(tl->left());
-  curr += sum_of_squared_block_sizes(tl->right());
-  return curr;
-}
-
-size_t BinaryTreeDictionary::totalFreeBlocksInTree(TreeList* tl) const {
-  if (tl == NULL)
-    return 0;
-  return totalListLength(tl) +
-         totalFreeBlocksInTree(tl->left()) +
-         totalFreeBlocksInTree(tl->right());
-}
-
-size_t BinaryTreeDictionary::numFreeBlocks() const {
-  assert(totalFreeBlocksInTree(root()) == totalFreeBlocks(),
-         "_totalFreeBlocks inconsistency");
-  return totalFreeBlocks();
-}
-
-size_t BinaryTreeDictionary::treeHeightHelper(TreeList* tl) const {
-  if (tl == NULL)
-    return 0;
-  return 1 + MAX2(treeHeightHelper(tl->left()),
-                  treeHeightHelper(tl->right()));
-}
-
-size_t BinaryTreeDictionary::treeHeight() const {
-  return treeHeightHelper(root());
-}
-
-size_t BinaryTreeDictionary::totalNodesHelper(TreeList* tl) const {
-  if (tl == NULL) {
-    return 0;
-  }
-  return 1 + totalNodesHelper(tl->left()) +
-    totalNodesHelper(tl->right());
-}
-
-size_t BinaryTreeDictionary::totalNodesInTree(TreeList* tl) const {
-  return totalNodesHelper(root());
-}
-
-void BinaryTreeDictionary::dictCensusUpdate(size_t size, bool split, bool birth){
-  TreeList* nd = findList(size);
-  if (nd) {
-    if (split) {
-      if (birth) {
-        nd->increment_splitBirths();
-        nd->increment_surplus();
-      }  else {
-        nd->increment_splitDeaths();
-        nd->decrement_surplus();
-      }
-    } else {
-      if (birth) {
-        nd->increment_coalBirths();
-        nd->increment_surplus();
-      } else {
-        nd->increment_coalDeaths();
-        nd->decrement_surplus();
-      }
-    }
-  }
-  // A list for this size may not be found (nd == 0) if
-  //   This is a death where the appropriate list is now
-  //     empty and has been removed from the list.
-  //   This is a birth associated with a LinAB.  The chunk
-  //     for the LinAB is not in the dictionary.
-}
-
-bool BinaryTreeDictionary::coalDictOverPopulated(size_t size) {
-  if (FLSAlwaysCoalesceLarge) return true;
-
-  TreeList* list_of_size = findList(size);
-  // None of requested size implies overpopulated.
-  return list_of_size == NULL || list_of_size->coalDesired() <= 0 ||
-         list_of_size->count() > list_of_size->coalDesired();
-}
-
-// Closures for walking the binary tree.
-//   do_list() walks the free list in a node applying the closure
-//     to each free chunk in the list
-//   do_tree() walks the nodes in the binary tree applying do_list()
-//     to each list at each node.
-
-class TreeCensusClosure : public StackObj {
- protected:
-  virtual void do_list(FreeList* fl) = 0;
- public:
-  virtual void do_tree(TreeList* tl) = 0;
-};
-
-class AscendTreeCensusClosure : public TreeCensusClosure {
- public:
-  void do_tree(TreeList* tl) {
-    if (tl != NULL) {
-      do_tree(tl->left());
-      do_list(tl);
-      do_tree(tl->right());
-    }
-  }
-};
-
-class DescendTreeCensusClosure : public TreeCensusClosure {
- public:
-  void do_tree(TreeList* tl) {
-    if (tl != NULL) {
-      do_tree(tl->right());
-      do_list(tl);
-      do_tree(tl->left());
-    }
-  }
-};
-
-// For each list in the tree, calculate the desired, desired
-// coalesce, count before sweep, and surplus before sweep.
-class BeginSweepClosure : public AscendTreeCensusClosure {
-  double _percentage;
-  float _inter_sweep_current;
-  float _inter_sweep_estimate;
-  float _intra_sweep_estimate;
-
- public:
-  BeginSweepClosure(double p, float inter_sweep_current,
-                              float inter_sweep_estimate,
-                              float intra_sweep_estimate) :
-   _percentage(p),
-   _inter_sweep_current(inter_sweep_current),
-   _inter_sweep_estimate(inter_sweep_estimate),
-   _intra_sweep_estimate(intra_sweep_estimate) { }
-
-  void do_list(FreeList* fl) {
-    double coalSurplusPercent = _percentage;
-    fl->compute_desired(_inter_sweep_current, _inter_sweep_estimate, _intra_sweep_estimate);
-    fl->set_coalDesired((ssize_t)((double)fl->desired() * coalSurplusPercent));
-    fl->set_beforeSweep(fl->count());
-    fl->set_bfrSurp(fl->surplus());
-  }
-};
-
-// Used to search the tree until a condition is met.
-// Similar to TreeCensusClosure but searches the
-// tree and returns promptly when found.
-
-class TreeSearchClosure : public StackObj {
- protected:
-  virtual bool do_list(FreeList* fl) = 0;
- public:
-  virtual bool do_tree(TreeList* tl) = 0;
-};
-
-#if 0 //  Don't need this yet but here for symmetry.
-class AscendTreeSearchClosure : public TreeSearchClosure {
- public:
-  bool do_tree(TreeList* tl) {
-    if (tl != NULL) {
-      if (do_tree(tl->left())) return true;
-      if (do_list(tl)) return true;
-      if (do_tree(tl->right())) return true;
-    }
-    return false;
-  }
-};
-#endif
-
-class DescendTreeSearchClosure : public TreeSearchClosure {
- public:
-  bool do_tree(TreeList* tl) {
-    if (tl != NULL) {
-      if (do_tree(tl->right())) return true;
-      if (do_list(tl)) return true;
-      if (do_tree(tl->left())) return true;
-    }
-    return false;
-  }
-};
-
-// Searches the tree for a chunk that ends at the
-// specified address.
-class EndTreeSearchClosure : public DescendTreeSearchClosure {
-  HeapWord* _target;
-  FreeChunk* _found;
-
- public:
-  EndTreeSearchClosure(HeapWord* target) : _target(target), _found(NULL) {}
-  bool do_list(FreeList* fl) {
-    FreeChunk* item = fl->head();
-    while (item != NULL) {
-      if (item->end() == _target) {
-        _found = item;
-        return true;
-      }
-      item = item->next();
-    }
-    return false;
-  }
-  FreeChunk* found() { return _found; }
-};
-
-FreeChunk* BinaryTreeDictionary::find_chunk_ends_at(HeapWord* target) const {
-  EndTreeSearchClosure etsc(target);
-  bool found_target = etsc.do_tree(root());
-  assert(found_target || etsc.found() == NULL, "Consistency check");
-  assert(!found_target || etsc.found() != NULL, "Consistency check");
-  return etsc.found();
-}
-
-void BinaryTreeDictionary::beginSweepDictCensus(double coalSurplusPercent,
-  float inter_sweep_current, float inter_sweep_estimate, float intra_sweep_estimate) {
-  BeginSweepClosure bsc(coalSurplusPercent, inter_sweep_current,
-                                            inter_sweep_estimate,
-                                            intra_sweep_estimate);
-  bsc.do_tree(root());
-}
-
-// Closures and methods for calculating total bytes returned to the
-// free lists in the tree.
-NOT_PRODUCT(
-  class InitializeDictReturnedBytesClosure : public AscendTreeCensusClosure {
-   public:
-    void do_list(FreeList* fl) {
-      fl->set_returnedBytes(0);
-    }
-  };
-
-  void BinaryTreeDictionary::initializeDictReturnedBytes() {
-    InitializeDictReturnedBytesClosure idrb;
-    idrb.do_tree(root());
-  }
-
-  class ReturnedBytesClosure : public AscendTreeCensusClosure {
-    size_t _dictReturnedBytes;
-   public:
-    ReturnedBytesClosure() { _dictReturnedBytes = 0; }
-    void do_list(FreeList* fl) {
-      _dictReturnedBytes += fl->returnedBytes();
-    }
-    size_t dictReturnedBytes() { return _dictReturnedBytes; }
-  };
-
-  size_t BinaryTreeDictionary::sumDictReturnedBytes() {
-    ReturnedBytesClosure rbc;
-    rbc.do_tree(root());
-
-    return rbc.dictReturnedBytes();
-  }
-
-  // Count the number of entries in the tree.
-  class treeCountClosure : public DescendTreeCensusClosure {
-   public:
-    uint count;
-    treeCountClosure(uint c) { count = c; }
-    void do_list(FreeList* fl) {
-      count++;
-    }
-  };
-
-  size_t BinaryTreeDictionary::totalCount() {
-    treeCountClosure ctc(0);
-    ctc.do_tree(root());
-    return ctc.count;
-  }
-)
-
-// Calculate surpluses for the lists in the tree.
-class setTreeSurplusClosure : public AscendTreeCensusClosure {
-  double percentage;
- public:
-  setTreeSurplusClosure(double v) { percentage = v; }
-  void do_list(FreeList* fl) {
-    double splitSurplusPercent = percentage;
-    fl->set_surplus(fl->count() -
-                   (ssize_t)((double)fl->desired() * splitSurplusPercent));
-  }
-};
-
-void BinaryTreeDictionary::setTreeSurplus(double splitSurplusPercent) {
-  setTreeSurplusClosure sts(splitSurplusPercent);
-  sts.do_tree(root());
-}
-
-// Set hints for the lists in the tree.
-class setTreeHintsClosure : public DescendTreeCensusClosure {
-  size_t hint;
- public:
-  setTreeHintsClosure(size_t v) { hint = v; }
-  void do_list(FreeList* fl) {
-    fl->set_hint(hint);
-    assert(fl->hint() == 0 || fl->hint() > fl->size(),
-      "Current hint is inconsistent");
-    if (fl->surplus() > 0) {
-      hint = fl->size();
-    }
-  }
-};
-
-void BinaryTreeDictionary::setTreeHints(void) {
-  setTreeHintsClosure sth(0);
-  sth.do_tree(root());
-}
-
-// Save count before previous sweep and splits and coalesces.
-class clearTreeCensusClosure : public AscendTreeCensusClosure {
-  void do_list(FreeList* fl) {
-    fl->set_prevSweep(fl->count());
-    fl->set_coalBirths(0);
-    fl->set_coalDeaths(0);
-    fl->set_splitBirths(0);
-    fl->set_splitDeaths(0);
-  }
-};
-
-void BinaryTreeDictionary::clearTreeCensus(void) {
-  clearTreeCensusClosure ctc;
-  ctc.do_tree(root());
-}
-
-// Do reporting and post sweep clean up.
-void BinaryTreeDictionary::endSweepDictCensus(double splitSurplusPercent) {
-  // Does walking the tree 3 times hurt?
-  setTreeSurplus(splitSurplusPercent);
-  setTreeHints();
-  if (PrintGC && Verbose) {
-    reportStatistics();
-  }
-  clearTreeCensus();
-}
-
-// Print summary statistics
-void BinaryTreeDictionary::reportStatistics() const {
-  verify_par_locked();
-  gclog_or_tty->print("Statistics for BinaryTreeDictionary:\n"
-         "------------------------------------\n");
-  size_t totalSize = totalChunkSize(debug_only(NULL));
-  size_t    freeBlocks = numFreeBlocks();
-  gclog_or_tty->print("Total Free Space: %d\n", totalSize);
-  gclog_or_tty->print("Max   Chunk Size: %d\n", maxChunkSize());
-  gclog_or_tty->print("Number of Blocks: %d\n", freeBlocks);
-  if (freeBlocks > 0) {
-    gclog_or_tty->print("Av.  Block  Size: %d\n", totalSize/freeBlocks);
-  }
-  gclog_or_tty->print("Tree      Height: %d\n", treeHeight());
-}
-
-// Print census information - counts, births, deaths, etc.
-// for each list in the tree.  Also print some summary
-// information.
-class PrintTreeCensusClosure : public AscendTreeCensusClosure {
-  int _print_line;
-  size_t _totalFree;
-  FreeList _total;
-
- public:
-  PrintTreeCensusClosure() {
-    _print_line = 0;
-    _totalFree = 0;
-  }
-  FreeList* total() { return &_total; }
-  size_t totalFree() { return _totalFree; }
-  void do_list(FreeList* fl) {
-    if (++_print_line >= 40) {
-      FreeList::print_labels_on(gclog_or_tty, "size");
-      _print_line = 0;
-    }
-    fl->print_on(gclog_or_tty);
-    _totalFree +=            fl->count()            * fl->size()        ;
-    total()->set_count(      total()->count()       + fl->count()      );
-    total()->set_bfrSurp(    total()->bfrSurp()     + fl->bfrSurp()    );
-    total()->set_surplus(    total()->splitDeaths() + fl->surplus()    );
-    total()->set_desired(    total()->desired()     + fl->desired()    );
-    total()->set_prevSweep(  total()->prevSweep()   + fl->prevSweep()  );
-    total()->set_beforeSweep(total()->beforeSweep() + fl->beforeSweep());
-    total()->set_coalBirths( total()->coalBirths()  + fl->coalBirths() );
-    total()->set_coalDeaths( total()->coalDeaths()  + fl->coalDeaths() );
-    total()->set_splitBirths(total()->splitBirths() + fl->splitBirths());
-    total()->set_splitDeaths(total()->splitDeaths() + fl->splitDeaths());
-  }
-};
-
-void BinaryTreeDictionary::printDictCensus(void) const {
-
-  gclog_or_tty->print("\nBinaryTree\n");
-  FreeList::print_labels_on(gclog_or_tty, "size");
-  PrintTreeCensusClosure ptc;
-  ptc.do_tree(root());
-
-  FreeList* total = ptc.total();
-  FreeList::print_labels_on(gclog_or_tty, " ");
-  total->print_on(gclog_or_tty, "TOTAL\t");
-  gclog_or_tty->print(
-              "totalFree(words): " SIZE_FORMAT_W(16)
-              " growth: %8.5f  deficit: %8.5f\n",
-              ptc.totalFree(),
-              (double)(total->splitBirths() + total->coalBirths()
-                     - total->splitDeaths() - total->coalDeaths())
-              /(total->prevSweep() != 0 ? (double)total->prevSweep() : 1.0),
-             (double)(total->desired() - total->count())
-             /(total->desired() != 0 ? (double)total->desired() : 1.0));
-}
-
-class PrintFreeListsClosure : public AscendTreeCensusClosure {
-  outputStream* _st;
-  int _print_line;
-
- public:
-  PrintFreeListsClosure(outputStream* st) {
-    _st = st;
-    _print_line = 0;
-  }
-  void do_list(FreeList* fl) {
-    if (++_print_line >= 40) {
-      FreeList::print_labels_on(_st, "size");
-      _print_line = 0;
-    }
-    fl->print_on(gclog_or_tty);
-    size_t sz = fl->size();
-    for (FreeChunk* fc = fl->head(); fc != NULL;
-         fc = fc->next()) {
-      _st->print_cr("\t[" PTR_FORMAT "," PTR_FORMAT ")  %s",
-                    fc, (HeapWord*)fc + sz,
-                    fc->cantCoalesce() ? "\t CC" : "");
-    }
-  }
-};
-
-void BinaryTreeDictionary::print_free_lists(outputStream* st) const {
-
-  FreeList::print_labels_on(st, "size");
-  PrintFreeListsClosure pflc(st);
-  pflc.do_tree(root());
-}
-
-// Verify the following tree invariants:
-// . _root has no parent
-// . parent and child point to each other
-// . each node's key correctly related to that of its child(ren)
-void BinaryTreeDictionary::verifyTree() const {
-  guarantee(root() == NULL || totalFreeBlocks() == 0 ||
-    totalSize() != 0, "_totalSize should't be 0?");
-  guarantee(root() == NULL || root()->parent() == NULL, "_root shouldn't have parent");
-  verifyTreeHelper(root());
-}
-
-size_t BinaryTreeDictionary::verifyPrevFreePtrs(TreeList* tl) {
-  size_t ct = 0;
-  for (FreeChunk* curFC = tl->head(); curFC != NULL; curFC = curFC->next()) {
-    ct++;
-    assert(curFC->prev() == NULL || curFC->prev()->isFree(),
-      "Chunk should be free");
-  }
-  return ct;
-}
-
-// Note: this helper is recursive rather than iterative, so use with
-// caution on very deep trees; and watch out for stack overflow errors;
-// In general, to be used only for debugging.
-void BinaryTreeDictionary::verifyTreeHelper(TreeList* tl) const {
-  if (tl == NULL)
-    return;
-  guarantee(tl->size() != 0, "A list must has a size");
-  guarantee(tl->left()  == NULL || tl->left()->parent()  == tl,
-         "parent<-/->left");
-  guarantee(tl->right() == NULL || tl->right()->parent() == tl,
-         "parent<-/->right");;
-  guarantee(tl->left() == NULL  || tl->left()->size()    <  tl->size(),
-         "parent !> left");
-  guarantee(tl->right() == NULL || tl->right()->size()   >  tl->size(),
-         "parent !< left");
-  guarantee(tl->head() == NULL || tl->head()->isFree(), "!Free");
-  guarantee(tl->head() == NULL || tl->head_as_TreeChunk()->list() == tl,
-    "list inconsistency");
-  guarantee(tl->count() > 0 || (tl->head() == NULL && tl->tail() == NULL),
-    "list count is inconsistent");
-  guarantee(tl->count() > 1 || tl->head() == tl->tail(),
-    "list is incorrectly constructed");
-  size_t count = verifyPrevFreePtrs(tl);
-  guarantee(count == (size_t)tl->count(), "Node count is incorrect");
-  if (tl->head() != NULL) {
-    tl->head_as_TreeChunk()->verifyTreeChunkList();
-  }
-  verifyTreeHelper(tl->left());
-  verifyTreeHelper(tl->right());
-}
-
-void BinaryTreeDictionary::verify() const {
-  verifyTree();
-  guarantee(totalSize() == totalSizeInTree(root()), "Total Size inconsistency");
-}
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/binaryTreeDictionary.hpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/binaryTreeDictionary.hpp	Wed Jul 05 18:09:43 2017 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,296 +0,0 @@
-/*
- * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_BINARYTREEDICTIONARY_HPP
-#define SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_BINARYTREEDICTIONARY_HPP
-
-#include "gc_implementation/concurrentMarkSweep/freeBlockDictionary.hpp"
-#include "gc_implementation/concurrentMarkSweep/freeList.hpp"
-
-/*
- * A binary tree based search structure for free blocks.
- * This is currently used in the Concurrent Mark&Sweep implementation.
- */
-
-// A TreeList is a FreeList which can be used to maintain a
-// binary tree of free lists.
-
-class TreeChunk;
-class BinaryTreeDictionary;
-class AscendTreeCensusClosure;
-class DescendTreeCensusClosure;
-class DescendTreeSearchClosure;
-
-class TreeList: public FreeList {
-  friend class TreeChunk;
-  friend class BinaryTreeDictionary;
-  friend class AscendTreeCensusClosure;
-  friend class DescendTreeCensusClosure;
-  friend class DescendTreeSearchClosure;
-
- protected:
-  TreeList* parent() const { return _parent; }
-  TreeList* left()   const { return _left;   }
-  TreeList* right()  const { return _right;  }
-
-  // Accessors for links in tree.
-
-  void setLeft(TreeList* tl) {
-    _left   = tl;
-    if (tl != NULL)
-      tl->setParent(this);
-  }
-  void setRight(TreeList* tl) {
-    _right  = tl;
-    if (tl != NULL)
-      tl->setParent(this);
-  }
-  void setParent(TreeList* tl)  { _parent = tl;   }
-
-  void clearLeft()               { _left = NULL;   }
-  void clearRight()              { _right = NULL;  }
-  void clearParent()             { _parent = NULL; }
-  void initialize()              { clearLeft(); clearRight(), clearParent(); }
-
-  // For constructing a TreeList from a Tree chunk or
-  // address and size.
-  static TreeList* as_TreeList(TreeChunk* tc);
-  static TreeList* as_TreeList(HeapWord* addr, size_t size);
-
-  // Returns the head of the free list as a pointer to a TreeChunk.
-  TreeChunk* head_as_TreeChunk();
-
-  // Returns the first available chunk in the free list as a pointer
-  // to a TreeChunk.
-  TreeChunk* first_available();
-
-  // Returns the block with the largest heap address amongst
-  // those in the list for this size; potentially slow and expensive,
-  // use with caution!
-  TreeChunk* largest_address();
-
-  // removeChunkReplaceIfNeeded() removes the given "tc" from the TreeList.
-  // If "tc" is the first chunk in the list, it is also the
-  // TreeList that is the node in the tree.  removeChunkReplaceIfNeeded()
-  // returns the possibly replaced TreeList* for the node in
-  // the tree.  It also updates the parent of the original
-  // node to point to the new node.
-  TreeList* removeChunkReplaceIfNeeded(TreeChunk* tc);
-  // See FreeList.
-  void returnChunkAtHead(TreeChunk* tc);
-  void returnChunkAtTail(TreeChunk* tc);
-};
-
-// A TreeChunk is a subclass of a FreeChunk that additionally
-// maintains a pointer to the free list on which it is currently
-// linked.
-// A TreeChunk is also used as a node in the binary tree.  This
-// allows the binary tree to be maintained without any additional
-// storage (the free chunks are used).  In a binary tree the first
-// chunk in the free list is also the tree node.  Note that the
-// TreeChunk has an embedded TreeList for this purpose.  Because
-// the first chunk in the list is distinguished in this fashion
-// (also is the node in the tree), it is the last chunk to be found
-// on the free list for a node in the tree and is only removed if
-// it is the last chunk on the free list.
-
-class TreeChunk : public FreeChunk {
-  friend class TreeList;
-  TreeList* _list;
-  TreeList _embedded_list;  // if non-null, this chunk is on _list
- protected:
-  TreeList* embedded_list() const { return (TreeList*) &_embedded_list; }
-  void set_embedded_list(TreeList* v) { _embedded_list = *v; }
- public:
-  TreeList* list() { return _list; }
-  void set_list(TreeList* v) { _list = v; }
-  static TreeChunk* as_TreeChunk(FreeChunk* fc);
-  // Initialize fields in a TreeChunk that should be
-  // initialized when the TreeChunk is being added to
-  // a free list in the tree.
-  void initialize() { embedded_list()->initialize(); }
-
-  // debugging
-  void verifyTreeChunkList() const;
-};
-
-const size_t MIN_TREE_CHUNK_SIZE  = sizeof(TreeChunk)/HeapWordSize;
-
-class BinaryTreeDictionary: public FreeBlockDictionary {
-  friend class VMStructs;
-  bool       _splay;
-  size_t     _totalSize;
-  size_t     _totalFreeBlocks;
-  TreeList* _root;
-
-  // private accessors
-  bool splay() const { return _splay; }
-  void set_splay(bool v) { _splay = v; }
-  size_t totalSize() const { return _totalSize; }
-  void set_totalSize(size_t v) { _totalSize = v; }
-  virtual void inc_totalSize(size_t v);
-  virtual void dec_totalSize(size_t v);
-  size_t totalFreeBlocks() const { return _totalFreeBlocks; }
-  void set_totalFreeBlocks(size_t v) { _totalFreeBlocks = v; }
-  TreeList* root() const { return _root; }
-  void set_root(TreeList* v) { _root = v; }
-
-  // Remove a chunk of size "size" or larger from the tree and
-  // return it.  If the chunk
-  // is the last chunk of that size, remove the node for that size
-  // from the tree.
-  TreeChunk* getChunkFromTree(size_t size, Dither dither, bool splay);
-  // Return a list of the specified size or NULL from the tree.
-  // The list is not removed from the tree.
-  TreeList* findList (size_t size) const;
-  // Remove this chunk from the tree.  If the removal results
-  // in an empty list in the tree, remove the empty list.
-  TreeChunk* removeChunkFromTree(TreeChunk* tc);
-  // Remove the node in the trees starting at tl that has the
-  // minimum value and return it.  Repair the tree as needed.
-  TreeList* removeTreeMinimum(TreeList* tl);
-  void       semiSplayStep(TreeList* tl);
-  // Add this free chunk to the tree.
-  void       insertChunkInTree(FreeChunk* freeChunk);
- public:
-  void       verifyTree() const;
-  // verify that the given chunk is in the tree.
-  bool       verifyChunkInFreeLists(FreeChunk* tc) const;
- private:
-  void          verifyTreeHelper(TreeList* tl) const;
-  static size_t verifyPrevFreePtrs(TreeList* tl);
-
-  // Returns the total number of chunks in the list.
-  size_t     totalListLength(TreeList* tl) const;
-  // Returns the total number of words in the chunks in the tree
-  // starting at "tl".
-  size_t     totalSizeInTree(TreeList* tl) const;
-  // Returns the sum of the square of the size of each block
-  // in the tree starting at "tl".
-  double     sum_of_squared_block_sizes(TreeList* const tl) const;
-  // Returns the total number of free blocks in the tree starting
-  // at "tl".
-  size_t     totalFreeBlocksInTree(TreeList* tl) const;
-  size_t     numFreeBlocks() const;
-  size_t     treeHeight() const;
-  size_t     treeHeightHelper(TreeList* tl) const;
-  size_t     totalNodesInTree(TreeList* tl) const;
-  size_t     totalNodesHelper(TreeList* tl) const;
-
- public:
-  // Constructor
-  BinaryTreeDictionary(MemRegion mr, bool splay = false);
-
-  // Reset the dictionary to the initial conditions with
-  // a single free chunk.
-  void       reset(MemRegion mr);
-  void       reset(HeapWord* addr, size_t size);
-  // Reset the dictionary to be empty.
-  void       reset();
-
-  // Return a chunk of size "size" or greater from
-  // the tree.
-  // want a better dynamic splay strategy for the future.
-  FreeChunk* getChunk(size_t size, Dither dither) {
-    verify_par_locked();
-    FreeChunk* res = getChunkFromTree(size, dither, splay());
-    assert(res == NULL || res->isFree(),
-           "Should be returning a free chunk");
-    return res;
-  }
-
-  void returnChunk(FreeChunk* chunk) {
-    verify_par_locked();
-    insertChunkInTree(chunk);
-  }
-
-  void removeChunk(FreeChunk* chunk) {
-    verify_par_locked();
-    removeChunkFromTree((TreeChunk*)chunk);
-    assert(chunk->isFree(), "Should still be a free chunk");
-  }
-
-  size_t     maxChunkSize() const;
-  size_t     totalChunkSize(debug_only(const Mutex* lock)) const {
-    debug_only(
-      if (lock != NULL && lock->owned_by_self()) {
-        assert(totalSizeInTree(root()) == totalSize(),
-               "_totalSize inconsistency");
-      }
-    )
-    return totalSize();
-  }
-
-  size_t     minSize() const {
-    return MIN_TREE_CHUNK_SIZE;
-  }
-
-  double     sum_of_squared_block_sizes() const {
-    return sum_of_squared_block_sizes(root());
-  }
-
-  FreeChunk* find_chunk_ends_at(HeapWord* target) const;
-
-  // Find the list with size "size" in the binary tree and update
-  // the statistics in the list according to "split" (chunk was
-  // split or coalesce) and "birth" (chunk was added or removed).
-  void       dictCensusUpdate(size_t size, bool split, bool birth);
-  // Return true if the dictionary is overpopulated (more chunks of
-  // this size than desired) for size "size".
-  bool       coalDictOverPopulated(size_t size);
-  // Methods called at the beginning of a sweep to prepare the
-  // statistics for the sweep.
-  void       beginSweepDictCensus(double coalSurplusPercent,
-                                  float inter_sweep_current,
-                                  float inter_sweep_estimate,
-                                  float intra_sweep_estimate);
-  // Methods called after the end of a sweep to modify the
-  // statistics for the sweep.
-  void       endSweepDictCensus(double splitSurplusPercent);
-  // Return the largest free chunk in the tree.
-  FreeChunk* findLargestDict() const;
-  // Accessors for statistics
-  void       setTreeSurplus(double splitSurplusPercent);
-  void       setTreeHints(void);
-  // Reset statistics for all the lists in the tree.
-  void       clearTreeCensus(void);
-  // Print the statistcis for all the lists in the tree.  Also may
-  // print out summaries.
-  void       printDictCensus(void) const;
-  void       print_free_lists(outputStream* st) const;
-
-  // For debugging.  Returns the sum of the _returnedBytes for
-  // all lists in the tree.
-  size_t     sumDictReturnedBytes()     PRODUCT_RETURN0;
-  // Sets the _returnedBytes for all the lists in the tree to zero.
-  void       initializeDictReturnedBytes()      PRODUCT_RETURN;
-  // For debugging.  Return the total number of chunks in the dictionary.
-  size_t     totalCount()       PRODUCT_RETURN0;
-
-  void       reportStatistics() const;
-
-  void       verify() const;
-};
-
-#endif // SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_BINARYTREEDICTIONARY_HPP
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/cmsPermGen.cpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/cmsPermGen.cpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/cmsPermGen.cpp	Fri May 04 14:10:30 2012 -0700
@@ -38,7 +38,7 @@
 
 CMSPermGen::CMSPermGen(ReservedSpace rs, size_t initial_byte_size,
              CardTableRS* ct,
-             FreeBlockDictionary::DictionaryChoice dictionaryChoice) {
+             FreeBlockDictionary<FreeChunk>::DictionaryChoice dictionaryChoice) {
   CMSPermGenGen* g =
     new CMSPermGenGen(rs, initial_byte_size, -1, ct);
   if (g == NULL) {
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/cmsPermGen.hpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/cmsPermGen.hpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/cmsPermGen.hpp	Fri May 04 14:10:30 2012 -0700
@@ -45,7 +45,7 @@
 
  public:
   CMSPermGen(ReservedSpace rs, size_t initial_byte_size,
-             CardTableRS* ct, FreeBlockDictionary::DictionaryChoice);
+             CardTableRS* ct, FreeBlockDictionary<FreeChunk>::DictionaryChoice);
 
   HeapWord* mem_allocate(size_t size);
 
@@ -65,7 +65,7 @@
     // regarding not using adaptive free lists for a perm gen.
     ConcurrentMarkSweepGeneration(rs, initial_byte_size, // MinPermHeapExapnsion
       level, ct, false /* use adaptive freelists */,
-      (FreeBlockDictionary::DictionaryChoice)CMSDictionaryChoice)
+      (FreeBlockDictionary<FreeChunk>::DictionaryChoice)CMSDictionaryChoice)
   {}
 
   void initialize_performance_counters();
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp	Fri May 04 14:10:30 2012 -0700
@@ -69,7 +69,7 @@
 // Constructor
 CompactibleFreeListSpace::CompactibleFreeListSpace(BlockOffsetSharedArray* bs,
   MemRegion mr, bool use_adaptive_freelists,
-  FreeBlockDictionary::DictionaryChoice dictionaryChoice) :
+  FreeBlockDictionary<FreeChunk>::DictionaryChoice dictionaryChoice) :
   _dictionaryChoice(dictionaryChoice),
   _adaptive_freelists(use_adaptive_freelists),
   _bt(bs, mr),
@@ -87,6 +87,8 @@
                     CMSConcMarkMultiple),
   _collector(NULL)
 {
+  assert(sizeof(FreeChunk) / BytesPerWord <= MinChunkSize,
+    "FreeChunk is larger than expected");
   _bt.set_space(this);
   initialize(mr, SpaceDecorator::Clear, SpaceDecorator::Mangle);
   // We have all of "mr", all of which we place in the dictionary
@@ -96,13 +98,13 @@
   // implementation, namely, the simple binary tree (splaying
   // temporarily disabled).
   switch (dictionaryChoice) {
-    case FreeBlockDictionary::dictionarySplayTree:
-    case FreeBlockDictionary::dictionarySkipList:
+    case FreeBlockDictionary<FreeChunk>::dictionarySplayTree:
+    case FreeBlockDictionary<FreeChunk>::dictionarySkipList:
     default:
       warning("dictionaryChoice: selected option not understood; using"
               " default BinaryTreeDictionary implementation instead.");
-    case FreeBlockDictionary::dictionaryBinaryTree:
-      _dictionary = new BinaryTreeDictionary(mr);
+    case FreeBlockDictionary<FreeChunk>::dictionaryBinaryTree:
+      _dictionary = new BinaryTreeDictionary<FreeChunk>(mr, use_adaptive_freelists);
       break;
   }
   assert(_dictionary != NULL, "CMS dictionary initialization");
@@ -117,7 +119,7 @@
   // moved to its new location before the klass is moved.
   // Set the _refillSize for the linear allocation blocks
   if (!use_adaptive_freelists) {
-    FreeChunk* fc = _dictionary->getChunk(mr.word_size());
+    FreeChunk* fc = _dictionary->get_chunk(mr.word_size());
     // The small linAB initially has all the space and will allocate
     // a chunk of any size.
     HeapWord* addr = (HeapWord*) fc;
@@ -273,12 +275,12 @@
     assert(mr.word_size() >= MinChunkSize, "Chunk size is too small");
     _bt.single_block(mr.start(), mr.word_size());
     FreeChunk* fc = (FreeChunk*) mr.start();
-    fc->setSize(mr.word_size());
+    fc->set_size(mr.word_size());
     if (mr.word_size() >= IndexSetSize ) {
       returnChunkToDictionary(fc);
     } else {
       _bt.verify_not_unallocated((HeapWord*)fc, fc->size());
-      _indexedFreeList[mr.word_size()].returnChunkAtHead(fc);
+      _indexedFreeList[mr.word_size()].return_chunk_at_head(fc);
     }
   }
   _promoInfo.reset();
@@ -296,7 +298,7 @@
   } else {
     // Place as much of mr in the linAB as we can get,
     // provided it was big enough to go into the dictionary.
-    FreeChunk* fc = dictionary()->findLargestDict();
+    FreeChunk* fc = dictionary()->find_largest_dict();
     if (fc != NULL) {
       assert(fc->size() == mr.word_size(),
              "Why was the chunk broken up?");
@@ -323,14 +325,14 @@
 #ifndef PRODUCT
 void CompactibleFreeListSpace::initializeIndexedFreeListArrayReturnedBytes() {
   for (size_t i = IndexSetStart; i < IndexSetSize; i += IndexSetStride) {
-    _indexedFreeList[i].allocation_stats()->set_returnedBytes(0);
+    _indexedFreeList[i].allocation_stats()->set_returned_bytes(0);
   }
 }
 
 size_t CompactibleFreeListSpace::sumIndexedFreeListArrayReturnedBytes() {
   size_t sum = 0;
   for (size_t i = IndexSetStart; i < IndexSetSize; i += IndexSetStride) {
-    sum += _indexedFreeList[i].allocation_stats()->returnedBytes();
+    sum += _indexedFreeList[i].allocation_stats()->returned_bytes();
   }
   return sum;
 }
@@ -354,7 +356,7 @@
 
 size_t CompactibleFreeListSpace::totalCount() {
   size_t num = totalCountInIndexedFreeLists();
-  num +=  dictionary()->totalCount();
+  num +=  dictionary()->total_count();
   if (_smallLinearAllocBlock._word_size != 0) {
     num++;
   }
@@ -364,7 +366,7 @@
 
 bool CompactibleFreeListSpace::is_free_block(const HeapWord* p) const {
   FreeChunk* fc = (FreeChunk*) p;
-  return fc->isFree();
+  return fc->is_free();
 }
 
 size_t CompactibleFreeListSpace::used() const {
@@ -391,7 +393,7 @@
   // that supports jvmstat, and you are apt to see the values
   // flicker in such cases.
   assert(_dictionary != NULL, "No _dictionary?");
-  return (_dictionary->totalChunkSize(DEBUG_ONLY(freelistLock())) +
+  return (_dictionary->total_chunk_size(DEBUG_ONLY(freelistLock())) +
           totalSizeInIndexedFreeLists() +
           _smallLinearAllocBlock._word_size) * HeapWordSize;
 }
@@ -399,7 +401,7 @@
 size_t CompactibleFreeListSpace::max_alloc_in_words() const {
   assert(_dictionary != NULL, "No _dictionary?");
   assert_locked();
-  size_t res = _dictionary->maxChunkSize();
+  size_t res = _dictionary->max_chunk_size();
   res = MAX2(res, MIN2(_smallLinearAllocBlock._word_size,
                        (size_t) SmallForLinearAlloc - 1));
   // XXX the following could potentially be pretty slow;
@@ -448,7 +450,7 @@
   reportIndexedFreeListStatistics();
   gclog_or_tty->print_cr("Layout of Indexed Freelists");
   gclog_or_tty->print_cr("---------------------------");
-  FreeList::print_labels_on(st, "size");
+  FreeList<FreeChunk>::print_labels_on(st, "size");
   for (size_t i = IndexSetStart; i < IndexSetSize; i += IndexSetStride) {
     _indexedFreeList[i].print_on(gclog_or_tty);
     for (FreeChunk* fc = _indexedFreeList[i].head(); fc != NULL;
@@ -467,7 +469,7 @@
 
 void CompactibleFreeListSpace::print_dictionary_free_lists(outputStream* st)
 const {
-  _dictionary->reportStatistics();
+  _dictionary->report_statistics();
   st->print_cr("Layout of Freelists in Tree");
   st->print_cr("---------------------------");
   _dictionary->print_free_lists(st);
@@ -545,12 +547,12 @@
 void CompactibleFreeListSpace::reportFreeListStatistics() const {
   assert_lock_strong(&_freelistLock);
   assert(PrintFLSStatistics != 0, "Reporting error");
-  _dictionary->reportStatistics();
+  _dictionary->report_statistics();
   if (PrintFLSStatistics > 1) {
     reportIndexedFreeListStatistics();
-    size_t totalSize = totalSizeInIndexedFreeLists() +
-                       _dictionary->totalChunkSize(DEBUG_ONLY(freelistLock()));
-    gclog_or_tty->print(" free=%ld frag=%1.4f\n", totalSize, flsFrag());
+    size_t total_size = totalSizeInIndexedFreeLists() +
+                       _dictionary->total_chunk_size(DEBUG_ONLY(freelistLock()));
+    gclog_or_tty->print(" free=%ld frag=%1.4f\n", total_size, flsFrag());
   }
 }
 
@@ -558,13 +560,13 @@
   assert_lock_strong(&_freelistLock);
   gclog_or_tty->print("Statistics for IndexedFreeLists:\n"
                       "--------------------------------\n");
-  size_t totalSize = totalSizeInIndexedFreeLists();
-  size_t   freeBlocks = numFreeBlocksInIndexedFreeLists();
-  gclog_or_tty->print("Total Free Space: %d\n", totalSize);
+  size_t total_size = totalSizeInIndexedFreeLists();
+  size_t   free_blocks = numFreeBlocksInIndexedFreeLists();
+  gclog_or_tty->print("Total Free Space: %d\n", total_size);
   gclog_or_tty->print("Max   Chunk Size: %d\n", maxChunkSizeInIndexedFreeLists());
-  gclog_or_tty->print("Number of Blocks: %d\n", freeBlocks);
-  if (freeBlocks != 0) {
-    gclog_or_tty->print("Av.  Block  Size: %d\n", totalSize/freeBlocks);
+  gclog_or_tty->print("Number of Blocks: %d\n", free_blocks);
+  if (free_blocks != 0) {
+    gclog_or_tty->print("Av.  Block  Size: %d\n", total_size/free_blocks);
   }
 }
 
@@ -911,7 +913,7 @@
   for (addr = bottom(), last  = end();
        addr < last; addr += size) {
     FreeChunk* fc = (FreeChunk*)addr;
-    if (fc->isFree()) {
+    if (fc->is_free()) {
       // Since we hold the free list lock, which protects direct
       // allocation in this generation by mutators, a free object
       // will remain free throughout this iteration code.
@@ -953,7 +955,7 @@
   for (addr = block_start_careful(mr.start()), end  = mr.end();
        addr < end; addr += size) {
     FreeChunk* fc = (FreeChunk*)addr;
-    if (fc->isFree()) {
+    if (fc->is_free()) {
       // Since we hold the free list lock, which protects direct
       // allocation in this generation by mutators, a free object
       // will remain free throughout this iteration code.
@@ -1069,7 +1071,7 @@
   NOT_PRODUCT(verify_objects_initialized());
   assert(MemRegion(bottom(), end()).contains(p), "p not in space");
   FreeChunk* fc = (FreeChunk*)p;
-  if (fc->isFree()) {
+  if (fc->is_free()) {
     return fc->size();
   } else {
     // Ignore mark word because this may be a recently promoted
@@ -1160,7 +1162,7 @@
   FreeChunk* fc = (FreeChunk*)p;
   assert(is_in_reserved(p), "Should be in space");
   assert(_bt.block_start(p) == p, "Should be a block boundary");
-  if (!fc->isFree()) {
+  if (!fc->is_free()) {
     // Ignore mark word because it may have been used to
     // chain together promoted objects (the last one
     // would have a null value).
@@ -1222,7 +1224,7 @@
 
     FreeChunk* fc = (FreeChunk*)res;
     fc->markNotFree();
-    assert(!fc->isFree(), "shouldn't be marked free");
+    assert(!fc->is_free(), "shouldn't be marked free");
     assert(oop(fc)->klass_or_null() == NULL, "should look uninitialized");
     // Verify that the block offset table shows this to
     // be a single block, but not one which is unallocated.
@@ -1331,10 +1333,10 @@
   size_t currSize = numWords + MinChunkSize;
   assert(currSize % MinObjAlignment == 0, "currSize should be aligned");
   for (i = currSize; i < IndexSetSize; i += IndexSetStride) {
-    FreeList* fl = &_indexedFreeList[i];
+    FreeList<FreeChunk>* fl = &_indexedFreeList[i];
     if (fl->head()) {
       ret = getFromListGreater(fl, numWords);
-      assert(ret == NULL || ret->isFree(), "Should be returning a free chunk");
+      assert(ret == NULL || ret->is_free(), "Should be returning a free chunk");
       return ret;
     }
   }
@@ -1345,7 +1347,7 @@
   /* Try to get a chunk that satisfies request, while avoiding
      fragmentation that can't be handled. */
   {
-    ret =  dictionary()->getChunk(currSize);
+    ret =  dictionary()->get_chunk(currSize);
     if (ret != NULL) {
       assert(ret->size() - numWords >= MinChunkSize,
              "Chunk is too small");
@@ -1353,10 +1355,10 @@
       /* Carve returned chunk. */
       (void) splitChunkAndReturnRemainder(ret, numWords);
       /* Label this as no longer a free chunk. */
-      assert(ret->isFree(), "This chunk should be free");
-      ret->linkPrev(NULL);
+      assert(ret->is_free(), "This chunk should be free");
+      ret->link_prev(NULL);
     }
-    assert(ret == NULL || ret->isFree(), "Should be returning a free chunk");
+    assert(ret == NULL || ret->is_free(), "Should be returning a free chunk");
     return ret;
   }
   ShouldNotReachHere();
@@ -1364,7 +1366,7 @@
 
 bool CompactibleFreeListSpace::verifyChunkInIndexedFreeLists(FreeChunk* fc) const {
   assert(fc->size() < IndexSetSize, "Size of chunk is too large");
-  return _indexedFreeList[fc->size()].verifyChunkInFreeLists(fc);
+  return _indexedFreeList[fc->size()].verify_chunk_in_free_list(fc);
 }
 
 bool CompactibleFreeListSpace::verify_chunk_is_linear_alloc_block(FreeChunk* fc) const {
@@ -1378,13 +1380,13 @@
 // Check if the purported free chunk is present either as a linear
 // allocation block, the size-indexed table of (smaller) free blocks,
 // or the larger free blocks kept in the binary tree dictionary.
-bool CompactibleFreeListSpace::verifyChunkInFreeLists(FreeChunk* fc) const {
+bool CompactibleFreeListSpace::verify_chunk_in_free_list(FreeChunk* fc) const {
   if (verify_chunk_is_linear_alloc_block(fc)) {
     return true;
   } else if (fc->size() < IndexSetSize) {
     return verifyChunkInIndexedFreeLists(fc);
   } else {
-    return dictionary()->verifyChunkInFreeLists(fc);
+    return dictionary()->verify_chunk_in_free_list(fc);
   }
 }
 
@@ -1412,7 +1414,7 @@
   }
   if (fc != NULL) {
     fc->dontCoalesce();
-    assert(fc->isFree(), "Should be free, but not coalescable");
+    assert(fc->is_free(), "Should be free, but not coalescable");
     // Verify that the block offset table shows this to
     // be a single block, but not one which is unallocated.
     _bt.verify_single_block((HeapWord*)fc, fc->size());
@@ -1492,7 +1494,7 @@
     }
     // Return the chunk that isn't big enough, and then refill below.
     addChunkToFreeLists(blk->_ptr, sz);
-    splitBirth(sz);
+    split_birth(sz);
     // Don't keep statistics on adding back chunk from a LinAB.
   } else {
     // A refilled block would not satisfy the request.
@@ -1504,14 +1506,14 @@
   assert(blk->_ptr == NULL || blk->_word_size >= size + MinChunkSize,
          "block was replenished");
   if (res != NULL) {
-    splitBirth(size);
+    split_birth(size);
     repairLinearAllocBlock(blk);
   } else if (blk->_ptr != NULL) {
     res = blk->_ptr;
     size_t blk_size = blk->_word_size;
     blk->_word_size -= size;
     blk->_ptr  += size;
-    splitBirth(size);
+    split_birth(size);
     repairLinearAllocBlock(blk);
     // Update BOT last so that other (parallel) GC threads see a consistent
     // view of the BOT and free blocks.
@@ -1540,7 +1542,7 @@
     size_t blk_size = blk->_word_size;
     blk->_word_size -= size;
     blk->_ptr  += size;
-    splitBirth(size);
+    split_birth(size);
     repairLinearAllocBlock(blk);
     // Update BOT last so that other (parallel) GC threads see a consistent
     // view of the BOT and free blocks.
@@ -1557,7 +1559,7 @@
   assert_locked();
   assert(size < SmallForDictionary, "just checking");
   FreeChunk* res;
-  res = _indexedFreeList[size].getChunkAtHead();
+  res = _indexedFreeList[size].get_chunk_at_head();
   if (res == NULL) {
     res = getChunkFromIndexedFreeListHelper(size);
   }
@@ -1591,7 +1593,7 @@
         // Do not replenish from an underpopulated size.
         if (_indexedFreeList[replenish_size].surplus() > 0 &&
             _indexedFreeList[replenish_size].head() != NULL) {
-          newFc = _indexedFreeList[replenish_size].getChunkAtHead();
+          newFc = _indexedFreeList[replenish_size].get_chunk_at_head();
         } else if (bestFitFirst()) {
           newFc = bestFitSmall(replenish_size);
         }
@@ -1624,13 +1626,13 @@
                i < (num_blk - 1);
                curFc = nextFc, nextFc = (FreeChunk*)((HeapWord*)nextFc + size),
                i++) {
-            curFc->setSize(size);
+            curFc->set_size(size);
             // Don't record this as a return in order to try and
             // determine the "returns" from a GC.
             _bt.verify_not_unallocated((HeapWord*) fc, size);
-            _indexedFreeList[size].returnChunkAtTail(curFc, false);
+            _indexedFreeList[size].return_chunk_at_tail(curFc, false);
             _bt.mark_block((HeapWord*)curFc, size);
-            splitBirth(size);
+            split_birth(size);
             // Don't record the initial population of the indexed list
             // as a split birth.
           }
@@ -1638,9 +1640,9 @@
           // check that the arithmetic was OK above
           assert((HeapWord*)nextFc == (HeapWord*)newFc + num_blk*size,
             "inconsistency in carving newFc");
-          curFc->setSize(size);
+          curFc->set_size(size);
           _bt.mark_block((HeapWord*)curFc, size);
-          splitBirth(size);
+          split_birth(size);
           fc = curFc;
         } else {
           // Return entire block to caller
@@ -1653,14 +1655,14 @@
     // replenish the indexed free list.
     fc = getChunkFromDictionaryExact(size);
   }
-  // assert(fc == NULL || fc->isFree(), "Should be returning a free chunk");
+  // assert(fc == NULL || fc->is_free(), "Should be returning a free chunk");
   return fc;
 }
 
 FreeChunk*
 CompactibleFreeListSpace::getChunkFromDictionary(size_t size) {
   assert_locked();
-  FreeChunk* fc = _dictionary->getChunk(size);
+  FreeChunk* fc = _dictionary->get_chunk(size);
   if (fc == NULL) {
     return NULL;
   }
@@ -1677,7 +1679,7 @@
 FreeChunk*
 CompactibleFreeListSpace::getChunkFromDictionaryExact(size_t size) {
   assert_locked();
-  FreeChunk* fc = _dictionary->getChunk(size);
+  FreeChunk* fc = _dictionary->get_chunk(size);
   if (fc == NULL) {
     return fc;
   }
@@ -1686,11 +1688,11 @@
     _bt.verify_single_block((HeapWord*)fc, size);
     return fc;
   }
-  assert(fc->size() > size, "getChunk() guarantee");
+  assert(fc->size() > size, "get_chunk() guarantee");
   if (fc->size() < size + MinChunkSize) {
     // Return the chunk to the dictionary and go get a bigger one.
     returnChunkToDictionary(fc);
-    fc = _dictionary->getChunk(size + MinChunkSize);
+    fc = _dictionary->get_chunk(size + MinChunkSize);
     if (fc == NULL) {
       return NULL;
     }
@@ -1711,10 +1713,10 @@
   _bt.verify_single_block((HeapWord*)chunk, size);
   // adjust _unallocated_block downward, as necessary
   _bt.freed((HeapWord*)chunk, size);
-  _dictionary->returnChunk(chunk);
+  _dictionary->return_chunk(chunk);
 #ifndef PRODUCT
   if (CMSCollector::abstract_state() != CMSCollector::Sweeping) {
-    TreeChunk::as_TreeChunk(chunk)->list()->verify_stats();
+    TreeChunk<FreeChunk>::as_TreeChunk(chunk)->list()->verify_stats();
   }
 #endif // PRODUCT
 }
@@ -1726,9 +1728,9 @@
   _bt.verify_single_block((HeapWord*) fc, size);
   _bt.verify_not_unallocated((HeapWord*) fc, size);
   if (_adaptive_freelists) {
-    _indexedFreeList[size].returnChunkAtTail(fc);
+    _indexedFreeList[size].return_chunk_at_tail(fc);
   } else {
-    _indexedFreeList[size].returnChunkAtHead(fc);
+    _indexedFreeList[size].return_chunk_at_head(fc);
   }
 #ifndef PRODUCT
   if (CMSCollector::abstract_state() != CMSCollector::Sweeping) {
@@ -1756,7 +1758,7 @@
   FreeChunk* ec;
   {
     MutexLockerEx x(lock, Mutex::_no_safepoint_check_flag);
-    ec = dictionary()->findLargestDict();  // get largest block
+    ec = dictionary()->find_largest_dict();  // get largest block
     if (ec != NULL && ec->end() == chunk) {
       // It's a coterminal block - we can coalesce.
       size_t old_size = ec->size();
@@ -1767,7 +1769,7 @@
       ec = (FreeChunk*)chunk;
     }
   }
-  ec->setSize(size);
+  ec->set_size(size);
   debug_only(ec->mangleFreed(size));
   if (size < SmallForDictionary) {
     lock = _indexedFreeListParLocks[size];
@@ -1790,7 +1792,7 @@
   _bt.verify_single_block(chunk, size);
 
   FreeChunk* fc = (FreeChunk*) chunk;
-  fc->setSize(size);
+  fc->set_size(size);
   debug_only(fc->mangleFreed(size));
   if (size < SmallForDictionary) {
     returnChunkToFreeList(fc);
@@ -1833,7 +1835,7 @@
   assert_locked();
   assert(fc != NULL, "null chunk");
   _bt.verify_single_block((HeapWord*)fc, size);
-  _dictionary->removeChunk(fc);
+  _dictionary->remove_chunk(fc);
   // adjust _unallocated_block upward, as necessary
   _bt.allocated((HeapWord*)fc, size);
 }
@@ -1848,7 +1850,7 @@
       verifyIndexedFreeList(size);
     }
   )
-  _indexedFreeList[size].removeChunk(fc);
+  _indexedFreeList[size].remove_chunk(fc);
   NOT_PRODUCT(
     if (FLSVerifyIndexTable) {
       verifyIndexedFreeList(size);
@@ -1862,17 +1864,17 @@
      the excess is >= MIN_CHUNK. */
   size_t start = align_object_size(numWords + MinChunkSize);
   if (start < IndexSetSize) {
-    FreeList* it   = _indexedFreeList;
+    FreeList<FreeChunk>* it   = _indexedFreeList;
     size_t    hint = _indexedFreeList[start].hint();
     while (hint < IndexSetSize) {
       assert(hint % MinObjAlignment == 0, "hint should be aligned");
-      FreeList *fl = &_indexedFreeList[hint];
+      FreeList<FreeChunk> *fl = &_indexedFreeList[hint];
       if (fl->surplus() > 0 && fl->head() != NULL) {
         // Found a list with surplus, reset original hint
         // and split out a free chunk which is returned.
         _indexedFreeList[start].set_hint(hint);
         FreeChunk* res = getFromListGreater(fl, numWords);
-        assert(res == NULL || res->isFree(),
+        assert(res == NULL || res->is_free(),
           "Should be returning a free chunk");
         return res;
       }
@@ -1885,7 +1887,7 @@
 }
 
 /* Requires fl->size >= numWords + MinChunkSize */
-FreeChunk* CompactibleFreeListSpace::getFromListGreater(FreeList* fl,
+FreeChunk* CompactibleFreeListSpace::getFromListGreater(FreeList<FreeChunk>* fl,
   size_t numWords) {
   FreeChunk *curr = fl->head();
   size_t oldNumWords = curr->size();
@@ -1894,13 +1896,13 @@
   assert(oldNumWords >= numWords + MinChunkSize,
         "Size of chunks in the list is too small");
 
-  fl->removeChunk(curr);
+  fl->remove_chunk(curr);
   // recorded indirectly by splitChunkAndReturnRemainder -
   // smallSplit(oldNumWords, numWords);
   FreeChunk* new_chunk = splitChunkAndReturnRemainder(curr, numWords);
   // Does anything have to be done for the remainder in terms of
   // fixing the card table?
-  assert(new_chunk == NULL || new_chunk->isFree(),
+  assert(new_chunk == NULL || new_chunk->is_free(),
     "Should be returning a free chunk");
   return new_chunk;
 }
@@ -1918,13 +1920,13 @@
   assert(rem_size >= MinChunkSize, "Free chunk smaller than minimum");
   FreeChunk* ffc = (FreeChunk*)((HeapWord*)chunk + new_size);
   assert(is_aligned(ffc), "alignment problem");
-  ffc->setSize(rem_size);
-  ffc->linkNext(NULL);
-  ffc->linkPrev(NULL); // Mark as a free block for other (parallel) GC threads.
+  ffc->set_size(rem_size);
+  ffc->link_next(NULL);
+  ffc->link_prev(NULL); // Mark as a free block for other (parallel) GC threads.
   // Above must occur before BOT is updated below.
   // adjust block offset table
   OrderAccess::storestore();
-  assert(chunk->isFree() && ffc->isFree(), "Error");
+  assert(chunk->is_free() && ffc->is_free(), "Error");
   _bt.split_block((HeapWord*)chunk, chunk->size(), new_size);
   if (rem_size < SmallForDictionary) {
     bool is_par = (SharedHeap::heap()->n_par_threads() > 0);
@@ -1939,7 +1941,7 @@
     returnChunkToDictionary(ffc);
     split(size ,rem_size);
   }
-  chunk->setSize(new_size);
+  chunk->set_size(new_size);
   return chunk;
 }
 
@@ -2046,10 +2048,10 @@
     assert(blk->_word_size != 0 && blk->_word_size >= MinChunkSize,
            "Minimum block size requirement");
     FreeChunk* fc = (FreeChunk*)(blk->_ptr);
-    fc->setSize(blk->_word_size);
-    fc->linkPrev(NULL);   // mark as free
+    fc->set_size(blk->_word_size);
+    fc->link_prev(NULL);   // mark as free
     fc->dontCoalesce();
-    assert(fc->isFree(), "just marked it free");
+    assert(fc->is_free(), "just marked it free");
     assert(fc->cantCoalesce(), "just marked it uncoalescable");
   }
 }
@@ -2149,7 +2151,7 @@
   }
 
   double totFree = itabFree +
-                   _dictionary->totalChunkSize(DEBUG_ONLY(freelistLock()));
+                   _dictionary->total_chunk_size(DEBUG_ONLY(freelistLock()));
   if (totFree > 0) {
     frag = ((frag + _dictionary->sum_of_squared_block_sizes()) /
             (totFree * totFree));
@@ -2167,16 +2169,16 @@
   assert_locked();
   size_t i;
   for (i = IndexSetStart; i < IndexSetSize; i += IndexSetStride) {
-    FreeList* fl    = &_indexedFreeList[i];
+    FreeList<FreeChunk>* fl = &_indexedFreeList[i];
     if (PrintFLSStatistics > 1) {
       gclog_or_tty->print("size[%d] : ", i);
     }
     fl->compute_desired(inter_sweep_current, inter_sweep_estimate, intra_sweep_estimate);
-    fl->set_coalDesired((ssize_t)((double)fl->desired() * CMSSmallCoalSurplusPercent));
-    fl->set_beforeSweep(fl->count());
-    fl->set_bfrSurp(fl->surplus());
+    fl->set_coal_desired((ssize_t)((double)fl->desired() * CMSSmallCoalSurplusPercent));
+    fl->set_before_sweep(fl->count());
+    fl->set_bfr_surp(fl->surplus());
   }
-  _dictionary->beginSweepDictCensus(CMSLargeCoalSurplusPercent,
+  _dictionary->begin_sweep_dict_census(CMSLargeCoalSurplusPercent,
                                     inter_sweep_current,
                                     inter_sweep_estimate,
                                     intra_sweep_estimate);
@@ -2186,7 +2188,7 @@
   assert_locked();
   size_t i;
   for (i = IndexSetStart; i < IndexSetSize; i += IndexSetStride) {
-    FreeList *fl = &_indexedFreeList[i];
+    FreeList<FreeChunk> *fl = &_indexedFreeList[i];
     fl->set_surplus(fl->count() -
                     (ssize_t)((double)fl->desired() * CMSSmallSplitSurplusPercent));
   }
@@ -2197,7 +2199,7 @@
   size_t i;
   size_t h = IndexSetSize;
   for (i = IndexSetSize - 1; i != 0; i -= IndexSetStride) {
-    FreeList *fl = &_indexedFreeList[i];
+    FreeList<FreeChunk> *fl = &_indexedFreeList[i];
     fl->set_hint(h);
     if (fl->surplus() > 0) {
       h = i;
@@ -2209,18 +2211,18 @@
   assert_locked();
   size_t i;
   for (i = IndexSetStart; i < IndexSetSize; i += IndexSetStride) {
-    FreeList *fl = &_indexedFreeList[i];
-    fl->set_prevSweep(fl->count());
-    fl->set_coalBirths(0);
-    fl->set_coalDeaths(0);
-    fl->set_splitBirths(0);
-    fl->set_splitDeaths(0);
+    FreeList<FreeChunk> *fl = &_indexedFreeList[i];
+    fl->set_prev_sweep(fl->count());
+    fl->set_coal_births(0);
+    fl->set_coal_deaths(0);
+    fl->set_split_births(0);
+    fl->set_split_deaths(0);
   }
 }
 
 void CompactibleFreeListSpace::endSweepFLCensus(size_t sweep_count) {
   if (PrintFLSStatistics > 0) {
-    HeapWord* largestAddr = (HeapWord*) dictionary()->findLargestDict();
+    HeapWord* largestAddr = (HeapWord*) dictionary()->find_largest_dict();
     gclog_or_tty->print_cr("CMS: Large block " PTR_FORMAT,
                            largestAddr);
   }
@@ -2231,30 +2233,30 @@
   }
   clearFLCensus();
   assert_locked();
-  _dictionary->endSweepDictCensus(CMSLargeSplitSurplusPercent);
+  _dictionary->end_sweep_dict_census(CMSLargeSplitSurplusPercent);
 }
 
 bool CompactibleFreeListSpace::coalOverPopulated(size_t size) {
   if (size < SmallForDictionary) {
-    FreeList *fl = &_indexedFreeList[size];
-    return (fl->coalDesired() < 0) ||
-           ((int)fl->count() > fl->coalDesired());
+    FreeList<FreeChunk> *fl = &_indexedFreeList[size];
+    return (fl->coal_desired() < 0) ||
+           ((int)fl->count() > fl->coal_desired());
   } else {
-    return dictionary()->coalDictOverPopulated(size);
+    return dictionary()->coal_dict_over_populated(size);
   }
 }
 
 void CompactibleFreeListSpace::smallCoalBirth(size_t size) {
   assert(size < SmallForDictionary, "Size too large for indexed list");
-  FreeList *fl = &_indexedFreeList[size];
-  fl->increment_coalBirths();
+  FreeList<FreeChunk> *fl = &_indexedFreeList[size];
+  fl->increment_coal_births();
   fl->increment_surplus();
 }
 
 void CompactibleFreeListSpace::smallCoalDeath(size_t size) {
   assert(size < SmallForDictionary, "Size too large for indexed list");
-  FreeList *fl = &_indexedFreeList[size];
-  fl->increment_coalDeaths();
+  FreeList<FreeChunk> *fl = &_indexedFreeList[size];
+  fl->increment_coal_deaths();
   fl->decrement_surplus();
 }
 
@@ -2262,7 +2264,7 @@
   if (size  < SmallForDictionary) {
     smallCoalBirth(size);
   } else {
-    dictionary()->dictCensusUpdate(size,
+    dictionary()->dict_census_udpate(size,
                                    false /* split */,
                                    true /* birth */);
   }
@@ -2272,7 +2274,7 @@
   if(size  < SmallForDictionary) {
     smallCoalDeath(size);
   } else {
-    dictionary()->dictCensusUpdate(size,
+    dictionary()->dict_census_udpate(size,
                                    false /* split */,
                                    false /* birth */);
   }
@@ -2280,23 +2282,23 @@
 
 void CompactibleFreeListSpace::smallSplitBirth(size_t size) {
   assert(size < SmallForDictionary, "Size too large for indexed list");
-  FreeList *fl = &_indexedFreeList[size];
-  fl->increment_splitBirths();
+  FreeList<FreeChunk> *fl = &_indexedFreeList[size];
+  fl->increment_split_births();
   fl->increment_surplus();
 }
 
 void CompactibleFreeListSpace::smallSplitDeath(size_t size) {
   assert(size < SmallForDictionary, "Size too large for indexed list");
-  FreeList *fl = &_indexedFreeList[size];
-  fl->increment_splitDeaths();
+  FreeList<FreeChunk> *fl = &_indexedFreeList[size];
+  fl->increment_split_deaths();
   fl->decrement_surplus();
 }
 
-void CompactibleFreeListSpace::splitBirth(size_t size) {
+void CompactibleFreeListSpace::split_birth(size_t size) {
   if (size  < SmallForDictionary) {
     smallSplitBirth(size);
   } else {
-    dictionary()->dictCensusUpdate(size,
+    dictionary()->dict_census_udpate(size,
                                    true /* split */,
                                    true /* birth */);
   }
@@ -2306,7 +2308,7 @@
   if (size  < SmallForDictionary) {
     smallSplitDeath(size);
   } else {
-    dictionary()->dictCensusUpdate(size,
+    dictionary()->dict_census_udpate(size,
                                    true /* split */,
                                    false /* birth */);
   }
@@ -2315,8 +2317,8 @@
 void CompactibleFreeListSpace::split(size_t from, size_t to1) {
   size_t to2 = from - to1;
   splitDeath(from);
-  splitBirth(to1);
-  splitBirth(to2);
+  split_birth(to1);
+  split_birth(to2);
 }
 
 void CompactibleFreeListSpace::print() const {
@@ -2362,7 +2364,7 @@
       FreeChunk* fc = (FreeChunk*)addr;
       res = fc->size();
       if (FLSVerifyLists && !fc->cantCoalesce()) {
-        guarantee(_sp->verifyChunkInFreeLists(fc),
+        guarantee(_sp->verify_chunk_in_free_list(fc),
                   "Chunk should be on a free list");
       }
     }
@@ -2518,7 +2520,7 @@
             "Slot should have been empty");
   for (; fc != NULL; fc = fc->next(), n++) {
     guarantee(fc->size() == size, "Size inconsistency");
-    guarantee(fc->isFree(), "!free?");
+    guarantee(fc->is_free(), "!free?");
     guarantee(fc->next() == NULL || fc->next()->prev() == fc, "Broken list");
     guarantee((fc->next() == NULL) == (fc == tail), "Incorrect tail");
   }
@@ -2527,10 +2529,10 @@
 
 #ifndef PRODUCT
 void CompactibleFreeListSpace::check_free_list_consistency() const {
-  assert(_dictionary->minSize() <= IndexSetSize,
+  assert(_dictionary->min_size() <= IndexSetSize,
     "Some sizes can't be allocated without recourse to"
     " linear allocation buffers");
-  assert(MIN_TREE_CHUNK_SIZE*HeapWordSize == sizeof(TreeChunk),
+  assert(BinaryTreeDictionary<FreeChunk>::min_tree_chunk_size*HeapWordSize == sizeof(TreeChunk<FreeChunk>),
     "else MIN_TREE_CHUNK_SIZE is wrong");
   assert((IndexSetStride == 2 && IndexSetStart == 4) ||                   // 32-bit
          (IndexSetStride == 1 && IndexSetStart == 3), "just checking");   // 64-bit
@@ -2543,36 +2545,36 @@
 
 void CompactibleFreeListSpace::printFLCensus(size_t sweep_count) const {
   assert_lock_strong(&_freelistLock);
-  FreeList total;
+  FreeList<FreeChunk> total;
   gclog_or_tty->print("end sweep# " SIZE_FORMAT "\n", sweep_count);
-  FreeList::print_labels_on(gclog_or_tty, "size");
-  size_t totalFree = 0;
+  FreeList<FreeChunk>::print_labels_on(gclog_or_tty, "size");
+  size_t total_free = 0;
   for (size_t i = IndexSetStart; i < IndexSetSize; i += IndexSetStride) {
-    const FreeList *fl = &_indexedFreeList[i];
-    totalFree += fl->count() * fl->size();
+    const FreeList<FreeChunk> *fl = &_indexedFreeList[i];
+    total_free += fl->count() * fl->size();
     if (i % (40*IndexSetStride) == 0) {
-      FreeList::print_labels_on(gclog_or_tty, "size");
+      FreeList<FreeChunk>::print_labels_on(gclog_or_tty, "size");
     }
     fl->print_on(gclog_or_tty);
-    total.set_bfrSurp(    total.bfrSurp()     + fl->bfrSurp()    );
+    total.set_bfr_surp(    total.bfr_surp()     + fl->bfr_surp()    );
     total.set_surplus(    total.surplus()     + fl->surplus()    );
     total.set_desired(    total.desired()     + fl->desired()    );
-    total.set_prevSweep(  total.prevSweep()   + fl->prevSweep()  );
-    total.set_beforeSweep(total.beforeSweep() + fl->beforeSweep());
+    total.set_prev_sweep(  total.prev_sweep()   + fl->prev_sweep()  );
+    total.set_before_sweep(total.before_sweep() + fl->before_sweep());
     total.set_count(      total.count()       + fl->count()      );
-    total.set_coalBirths( total.coalBirths()  + fl->coalBirths() );
-    total.set_coalDeaths( total.coalDeaths()  + fl->coalDeaths() );
-    total.set_splitBirths(total.splitBirths() + fl->splitBirths());
-    total.set_splitDeaths(total.splitDeaths() + fl->splitDeaths());
+    total.set_coal_births( total.coal_births()  + fl->coal_births() );
+    total.set_coal_deaths( total.coal_deaths()  + fl->coal_deaths() );
+    total.set_split_births(total.split_births() + fl->split_births());
+    total.set_split_deaths(total.split_deaths() + fl->split_deaths());
   }
   total.print_on(gclog_or_tty, "TOTAL");
   gclog_or_tty->print_cr("Total free in indexed lists "
-                         SIZE_FORMAT " words", totalFree);
+                         SIZE_FORMAT " words", total_free);
   gclog_or_tty->print("growth: %8.5f  deficit: %8.5f\n",
-    (double)(total.splitBirths()+total.coalBirths()-total.splitDeaths()-total.coalDeaths())/
-            (total.prevSweep() != 0 ? (double)total.prevSweep() : 1.0),
+    (double)(total.split_births()+total.coal_births()-total.split_deaths()-total.coal_deaths())/
+            (total.prev_sweep() != 0 ? (double)total.prev_sweep() : 1.0),
     (double)(total.desired() - total.count())/(total.desired() != 0 ? (double)total.desired() : 1.0));
-  _dictionary->printDictCensus();
+  _dictionary->print_dict_census();
 }
 
 ///////////////////////////////////////////////////////////////////////////
@@ -2634,18 +2636,18 @@
     res = _cfls->getChunkFromDictionaryExact(word_sz);
     if (res == NULL) return NULL;
   } else {
-    FreeList* fl = &_indexedFreeList[word_sz];
+    FreeList<FreeChunk>* fl = &_indexedFreeList[word_sz];
     if (fl->count() == 0) {
       // Attempt to refill this local free list.
       get_from_global_pool(word_sz, fl);
       // If it didn't work, give up.
       if (fl->count() == 0) return NULL;
     }
-    res = fl->getChunkAtHead();
+    res = fl->get_chunk_at_head();
     assert(res != NULL, "Why was count non-zero?");
   }
   res->markNotFree();
-  assert(!res->isFree(), "shouldn't be marked free");
+  assert(!res->is_free(), "shouldn't be marked free");
   assert(oop(res)->klass_or_null() == NULL, "should look uninitialized");
   // mangle a just allocated object with a distinct pattern.
   debug_only(res->mangleAllocated(word_sz));
@@ -2654,7 +2656,7 @@
 
 // Get a chunk of blocks of the right size and update related
 // book-keeping stats
-void CFLS_LAB::get_from_global_pool(size_t word_sz, FreeList* fl) {
+void CFLS_LAB::get_from_global_pool(size_t word_sz, FreeList<FreeChunk>* fl) {
   // Get the #blocks we want to claim
   size_t n_blks = (size_t)_blocks_to_claim[word_sz].average();
   assert(n_blks > 0, "Error");
@@ -2736,7 +2738,7 @@
         if (num_retire > 0) {
           _cfls->_indexedFreeList[i].prepend(&_indexedFreeList[i]);
           // Reset this list.
-          _indexedFreeList[i] = FreeList();
+          _indexedFreeList[i] = FreeList<FreeChunk>();
           _indexedFreeList[i].set_size(i);
         }
       }
@@ -2750,7 +2752,7 @@
   }
 }
 
-void CompactibleFreeListSpace:: par_get_chunk_of_blocks(size_t word_sz, size_t n, FreeList* fl) {
+void CompactibleFreeListSpace:: par_get_chunk_of_blocks(size_t word_sz, size_t n, FreeList<FreeChunk>* fl) {
   assert(fl->count() == 0, "Precondition.");
   assert(word_sz < CompactibleFreeListSpace::IndexSetSize,
          "Precondition");
@@ -2766,12 +2768,12 @@
          (cur_sz < CompactibleFreeListSpace::IndexSetSize) &&
          (CMSSplitIndexedFreeListBlocks || k <= 1);
          k++, cur_sz = k * word_sz) {
-      FreeList fl_for_cur_sz;  // Empty.
+      FreeList<FreeChunk> fl_for_cur_sz;  // Empty.
       fl_for_cur_sz.set_size(cur_sz);
       {
         MutexLockerEx x(_indexedFreeListParLocks[cur_sz],
                         Mutex::_no_safepoint_check_flag);
-        FreeList* gfl = &_indexedFreeList[cur_sz];
+        FreeList<FreeChunk>* gfl = &_indexedFreeList[cur_sz];
         if (gfl->count() != 0) {
           // nn is the number of chunks of size cur_sz that
           // we'd need to split k-ways each, in order to create
@@ -2784,9 +2786,9 @@
             // we increment the split death count by the number of blocks
             // we just took from the cur_sz-size blocks list and which
             // we will be splitting below.
-            ssize_t deaths = gfl->splitDeaths() +
+            ssize_t deaths = gfl->split_deaths() +
                              fl_for_cur_sz.count();
-            gfl->set_splitDeaths(deaths);
+            gfl->set_split_deaths(deaths);
           }
         }
       }
@@ -2797,21 +2799,21 @@
         } else {
           // Divide each block on fl_for_cur_sz up k ways.
           FreeChunk* fc;
-          while ((fc = fl_for_cur_sz.getChunkAtHead()) != NULL) {
+          while ((fc = fl_for_cur_sz.get_chunk_at_head()) != NULL) {
             // Must do this in reverse order, so that anybody attempting to
             // access the main chunk sees it as a single free block until we
             // change it.
             size_t fc_size = fc->size();
-            assert(fc->isFree(), "Error");
+            assert(fc->is_free(), "Error");
             for (int i = k-1; i >= 0; i--) {
               FreeChunk* ffc = (FreeChunk*)((HeapWord*)fc + i * word_sz);
               assert((i != 0) ||
-                        ((fc == ffc) && ffc->isFree() &&
+                        ((fc == ffc) && ffc->is_free() &&
                          (ffc->size() == k*word_sz) && (fc_size == word_sz)),
                         "Counting error");
-              ffc->setSize(word_sz);
-              ffc->linkPrev(NULL); // Mark as a free block for other (parallel) GC threads.
-              ffc->linkNext(NULL);
+              ffc->set_size(word_sz);
+              ffc->link_prev(NULL); // Mark as a free block for other (parallel) GC threads.
+              ffc->link_next(NULL);
               // Above must occur before BOT is updated below.
               OrderAccess::storestore();
               // splitting from the right, fc_size == i * word_sz
@@ -2822,7 +2824,7 @@
               _bt.verify_single_block((HeapWord*)fc, fc_size);
               _bt.verify_single_block((HeapWord*)ffc, word_sz);
               // Push this on "fl".
-              fl->returnChunkAtHead(ffc);
+              fl->return_chunk_at_head(ffc);
             }
             // TRAP
             assert(fl->tail()->next() == NULL, "List invariant.");
@@ -2832,8 +2834,8 @@
         size_t num = fl->count();
         MutexLockerEx x(_indexedFreeListParLocks[word_sz],
                         Mutex::_no_safepoint_check_flag);
-        ssize_t births = _indexedFreeList[word_sz].splitBirths() + num;
-        _indexedFreeList[word_sz].set_splitBirths(births);
+        ssize_t births = _indexedFreeList[word_sz].split_births() + num;
+        _indexedFreeList[word_sz].set_split_births(births);
         return;
       }
     }
@@ -2846,12 +2848,12 @@
     MutexLockerEx x(parDictionaryAllocLock(),
                     Mutex::_no_safepoint_check_flag);
     while (n > 0) {
-      fc = dictionary()->getChunk(MAX2(n * word_sz,
-                                  _dictionary->minSize()),
-                                  FreeBlockDictionary::atLeast);
+      fc = dictionary()->get_chunk(MAX2(n * word_sz,
+                                  _dictionary->min_size()),
+                                  FreeBlockDictionary<FreeChunk>::atLeast);
       if (fc != NULL) {
         _bt.allocated((HeapWord*)fc, fc->size(), true /* reducing */);  // update _unallocated_blk
-        dictionary()->dictCensusUpdate(fc->size(),
+        dictionary()->dict_census_udpate(fc->size(),
                                        true /*split*/,
                                        false /*birth*/);
         break;
@@ -2862,7 +2864,7 @@
     if (fc == NULL) return;
     // Otherwise, split up that block.
     assert((ssize_t)n >= 1, "Control point invariant");
-    assert(fc->isFree(), "Error: should be a free block");
+    assert(fc->is_free(), "Error: should be a free block");
     _bt.verify_single_block((HeapWord*)fc, fc->size());
     const size_t nn = fc->size() / word_sz;
     n = MIN2(nn, n);
@@ -2893,18 +2895,18 @@
     if (rem > 0) {
       size_t prefix_size = n * word_sz;
       rem_fc = (FreeChunk*)((HeapWord*)fc + prefix_size);
-      rem_fc->setSize(rem);
-      rem_fc->linkPrev(NULL); // Mark as a free block for other (parallel) GC threads.
-      rem_fc->linkNext(NULL);
+      rem_fc->set_size(rem);
+      rem_fc->link_prev(NULL); // Mark as a free block for other (parallel) GC threads.
+      rem_fc->link_next(NULL);
       // Above must occur before BOT is updated below.
       assert((ssize_t)n > 0 && prefix_size > 0 && rem_fc > fc, "Error");
       OrderAccess::storestore();
       _bt.split_block((HeapWord*)fc, fc->size(), prefix_size);
-      assert(fc->isFree(), "Error");
-      fc->setSize(prefix_size);
+      assert(fc->is_free(), "Error");
+      fc->set_size(prefix_size);
       if (rem >= IndexSetSize) {
         returnChunkToDictionary(rem_fc);
-        dictionary()->dictCensusUpdate(rem, true /*split*/, true /*birth*/);
+        dictionary()->dict_census_udpate(rem, true /*split*/, true /*birth*/);
         rem_fc = NULL;
       }
       // Otherwise, return it to the small list below.
@@ -2914,7 +2916,7 @@
     MutexLockerEx x(_indexedFreeListParLocks[rem],
                     Mutex::_no_safepoint_check_flag);
     _bt.verify_not_unallocated((HeapWord*)rem_fc, rem_fc->size());
-    _indexedFreeList[rem].returnChunkAtHead(rem_fc);
+    _indexedFreeList[rem].return_chunk_at_head(rem_fc);
     smallSplitBirth(rem);
   }
   assert((ssize_t)n > 0 && fc != NULL, "Consistency");
@@ -2926,9 +2928,9 @@
   // All but first chunk in this loop
   for (ssize_t i = n-1; i > 0; i--) {
     FreeChunk* ffc = (FreeChunk*)((HeapWord*)fc + i * word_sz);
-    ffc->setSize(word_sz);
-    ffc->linkPrev(NULL); // Mark as a free block for other (parallel) GC threads.
-    ffc->linkNext(NULL);
+    ffc->set_size(word_sz);
+    ffc->link_prev(NULL); // Mark as a free block for other (parallel) GC threads.
+    ffc->link_next(NULL);
     // Above must occur before BOT is updated below.
     OrderAccess::storestore();
     // splitting from the right, fc_size == (n - i + 1) * wordsize
@@ -2938,25 +2940,25 @@
     _bt.verify_single_block((HeapWord*)ffc, ffc->size());
     _bt.verify_single_block((HeapWord*)fc, fc_size);
     // Push this on "fl".
-    fl->returnChunkAtHead(ffc);
+    fl->return_chunk_at_head(ffc);
   }
   // First chunk
-  assert(fc->isFree() && fc->size() == n*word_sz, "Error: should still be a free block");
+  assert(fc->is_free() && fc->size() == n*word_sz, "Error: should still be a free block");
   // The blocks above should show their new sizes before the first block below
-  fc->setSize(word_sz);
-  fc->linkPrev(NULL);    // idempotent wrt free-ness, see assert above
-  fc->linkNext(NULL);
+  fc->set_size(word_sz);
+  fc->link_prev(NULL);    // idempotent wrt free-ness, see assert above
+  fc->link_next(NULL);
   _bt.verify_not_unallocated((HeapWord*)fc, fc->size());
   _bt.verify_single_block((HeapWord*)fc, fc->size());
-  fl->returnChunkAtHead(fc);
+  fl->return_chunk_at_head(fc);
 
   assert((ssize_t)n > 0 && (ssize_t)n == fl->count(), "Incorrect number of blocks");
   {
     // Update the stats for this block size.
     MutexLockerEx x(_indexedFreeListParLocks[word_sz],
                     Mutex::_no_safepoint_check_flag);
-    const ssize_t births = _indexedFreeList[word_sz].splitBirths() + n;
-    _indexedFreeList[word_sz].set_splitBirths(births);
+    const ssize_t births = _indexedFreeList[word_sz].split_births() + n;
+    _indexedFreeList[word_sz].set_split_births(births);
     // ssize_t new_surplus = _indexedFreeList[word_sz].surplus() + n;
     // _indexedFreeList[word_sz].set_surplus(new_surplus);
   }
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp	Fri May 04 14:10:30 2012 -0700
@@ -25,10 +25,10 @@
 #ifndef SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_COMPACTIBLEFREELISTSPACE_HPP
 #define SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_COMPACTIBLEFREELISTSPACE_HPP
 
-#include "gc_implementation/concurrentMarkSweep/binaryTreeDictionary.hpp"
-#include "gc_implementation/concurrentMarkSweep/freeList.hpp"
 #include "gc_implementation/concurrentMarkSweep/promotionInfo.hpp"
+#include "memory/binaryTreeDictionary.hpp"
 #include "memory/blockOffsetTable.inline.hpp"
+#include "memory/freeList.hpp"
 #include "memory/space.hpp"
 
 // Classes in support of keeping track of promotions into a non-Contiguous
@@ -129,10 +129,10 @@
   // Linear allocation blocks
   LinearAllocBlock _smallLinearAllocBlock;
 
-  FreeBlockDictionary::DictionaryChoice _dictionaryChoice;
-  FreeBlockDictionary* _dictionary;    // ptr to dictionary for large size blocks
+  FreeBlockDictionary<FreeChunk>::DictionaryChoice _dictionaryChoice;
+  FreeBlockDictionary<FreeChunk>* _dictionary;    // ptr to dictionary for large size blocks
 
-  FreeList _indexedFreeList[IndexSetSize];
+  FreeList<FreeChunk> _indexedFreeList[IndexSetSize];
                                        // indexed array for small size blocks
   // allocation stategy
   bool       _fitStrategy;      // Use best fit strategy.
@@ -169,7 +169,7 @@
   // If the count of "fl" is negative, it's absolute value indicates a
   // number of free chunks that had been previously "borrowed" from global
   // list of size "word_sz", and must now be decremented.
-  void par_get_chunk_of_blocks(size_t word_sz, size_t n, FreeList* fl);
+  void par_get_chunk_of_blocks(size_t word_sz, size_t n, FreeList<FreeChunk>* fl);
 
   // Allocation helper functions
   // Allocate using a strategy that takes from the indexed free lists
@@ -215,7 +215,7 @@
   // and return it.  The split off remainder is returned to
   // the free lists.  The old name for getFromListGreater
   // was lookInListGreater.
-  FreeChunk* getFromListGreater(FreeList* fl, size_t numWords);
+  FreeChunk* getFromListGreater(FreeList<FreeChunk>* fl, size_t numWords);
   // Get a chunk in the indexed free list or dictionary,
   // by considering a larger chunk and splitting it.
   FreeChunk* getChunkFromGreater(size_t numWords);
@@ -286,10 +286,10 @@
   // Constructor...
   CompactibleFreeListSpace(BlockOffsetSharedArray* bs, MemRegion mr,
                            bool use_adaptive_freelists,
-                           FreeBlockDictionary::DictionaryChoice);
+                           FreeBlockDictionary<FreeChunk>::DictionaryChoice);
   // accessors
   bool bestFitFirst() { return _fitStrategy == FreeBlockBestFitFirst; }
-  FreeBlockDictionary* dictionary() const { return _dictionary; }
+  FreeBlockDictionary<FreeChunk>* dictionary() const { return _dictionary; }
   HeapWord* nearLargestChunk() const { return _nearLargestChunk; }
   void set_nearLargestChunk(HeapWord* v) { _nearLargestChunk = v; }
 
@@ -499,7 +499,7 @@
   // Verify that the given chunk is in the free lists:
   // i.e. either the binary tree dictionary, the indexed free lists
   // or the linear allocation block.
-  bool verifyChunkInFreeLists(FreeChunk* fc) const;
+  bool verify_chunk_in_free_list(FreeChunk* fc) const;
   // Verify that the given chunk is the linear allocation block
   bool verify_chunk_is_linear_alloc_block(FreeChunk* fc) const;
   // Do some basic checks on the the free lists.
@@ -608,7 +608,7 @@
   void coalDeath(size_t size);
   void smallSplitBirth(size_t size);
   void smallSplitDeath(size_t size);
-  void splitBirth(size_t size);
+  void split_birth(size_t size);
   void splitDeath(size_t size);
   void split(size_t from, size_t to1);
 
@@ -622,7 +622,7 @@
   CompactibleFreeListSpace* _cfls;
 
   // Our local free lists.
-  FreeList _indexedFreeList[CompactibleFreeListSpace::IndexSetSize];
+  FreeList<FreeChunk> _indexedFreeList[CompactibleFreeListSpace::IndexSetSize];
 
   // Initialized from a command-line arg.
 
@@ -635,7 +635,7 @@
   size_t        _num_blocks        [CompactibleFreeListSpace::IndexSetSize];
 
   // Internal work method
-  void get_from_global_pool(size_t word_sz, FreeList* fl);
+  void get_from_global_pool(size_t word_sz, FreeList<FreeChunk>* fl);
 
 public:
   CFLS_LAB(CompactibleFreeListSpace* cfls);
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp	Fri May 04 14:10:30 2012 -0700
@@ -188,7 +188,7 @@
 ConcurrentMarkSweepGeneration::ConcurrentMarkSweepGeneration(
      ReservedSpace rs, size_t initial_byte_size, int level,
      CardTableRS* ct, bool use_adaptive_freelists,
-     FreeBlockDictionary::DictionaryChoice dictionaryChoice) :
+     FreeBlockDictionary<FreeChunk>::DictionaryChoice dictionaryChoice) :
   CardGeneration(rs, initial_byte_size, level, ct),
   _dilatation_factor(((double)MinChunkSize)/((double)(CollectedHeap::min_fill_size()))),
   _debug_collection_type(Concurrent_collection_type)
@@ -1026,7 +1026,7 @@
     // its mark-bit or P-bits not yet set. Such objects need
     // to be safely navigable by block_start().
     assert(oop(res)->klass_or_null() == NULL, "Object should be uninitialized here.");
-    assert(!((FreeChunk*)res)->isFree(), "Error, block will look free but show wrong size");
+    assert(!((FreeChunk*)res)->is_free(), "Error, block will look free but show wrong size");
     collector()->direct_allocated(res, adjustedSize);
     _direct_allocated_words += adjustedSize;
     // allocation counters
@@ -1391,7 +1391,7 @@
   oop obj = oop(obj_ptr);
   OrderAccess::storestore();
   assert(obj->klass_or_null() == NULL, "Object should be uninitialized here.");
-  assert(!((FreeChunk*)obj_ptr)->isFree(), "Error, block will look free but show wrong size");
+  assert(!((FreeChunk*)obj_ptr)->is_free(), "Error, block will look free but show wrong size");
   // IMPORTANT: See note on object initialization for CMS above.
   // Otherwise, copy the object.  Here we must be careful to insert the
   // klass pointer last, since this marks the block as an allocated object.
@@ -1400,7 +1400,7 @@
   // Restore the mark word copied above.
   obj->set_mark(m);
   assert(obj->klass_or_null() == NULL, "Object should be uninitialized here.");
-  assert(!((FreeChunk*)obj_ptr)->isFree(), "Error, block will look free but show wrong size");
+  assert(!((FreeChunk*)obj_ptr)->is_free(), "Error, block will look free but show wrong size");
   OrderAccess::storestore();
 
   if (UseCompressedOops) {
@@ -1421,7 +1421,7 @@
     promoInfo->track((PromotedObject*)obj, old->klass());
   }
   assert(obj->klass_or_null() == NULL, "Object should be uninitialized here.");
-  assert(!((FreeChunk*)obj_ptr)->isFree(), "Error, block will look free but show wrong size");
+  assert(!((FreeChunk*)obj_ptr)->is_free(), "Error, block will look free but show wrong size");
   assert(old->is_oop(), "Will use and dereference old klass ptr below");
 
   // Finally, install the klass pointer (this should be volatile).
@@ -2034,7 +2034,7 @@
            pointer_delta(cms_space->end(), cms_space->compaction_top())
            * HeapWordSize,
       "All the free space should be compacted into one chunk at top");
-    assert(cms_space->dictionary()->totalChunkSize(
+    assert(cms_space->dictionary()->total_chunk_size(
                                       debug_only(cms_space->freelistLock())) == 0 ||
            cms_space->totalSizeInIndexedFreeLists() == 0,
       "All the free space should be in a single chunk");
@@ -6131,7 +6131,7 @@
   double nearLargestPercent = FLSLargestBlockCoalesceProximity;
   HeapWord*  minAddr        = _cmsSpace->bottom();
   HeapWord*  largestAddr    =
-    (HeapWord*) _cmsSpace->dictionary()->findLargestDict();
+    (HeapWord*) _cmsSpace->dictionary()->find_largest_dict();
   if (largestAddr == NULL) {
     // The dictionary appears to be empty.  In this case
     // try to coalesce at the end of the heap.
@@ -7906,7 +7906,7 @@
     _last_fc = NULL;
 
     _sp->initializeIndexedFreeListArrayReturnedBytes();
-    _sp->dictionary()->initializeDictReturnedBytes();
+    _sp->dictionary()->initialize_dict_returned_bytes();
   )
   assert(_limit >= _sp->bottom() && _limit <= _sp->end(),
          "sweep _limit out of bounds");
@@ -7954,13 +7954,13 @@
 
     if (PrintCMSStatistics && CMSVerifyReturnedBytes) {
       size_t indexListReturnedBytes = _sp->sumIndexedFreeListArrayReturnedBytes();
-      size_t dictReturnedBytes = _sp->dictionary()->sumDictReturnedBytes();
-      size_t returnedBytes = indexListReturnedBytes + dictReturnedBytes;
-      gclog_or_tty->print("Returned "SIZE_FORMAT" bytes", returnedBytes);
+      size_t dict_returned_bytes = _sp->dictionary()->sum_dict_returned_bytes();
+      size_t returned_bytes = indexListReturnedBytes + dict_returned_bytes;
+      gclog_or_tty->print("Returned "SIZE_FORMAT" bytes", returned_bytes);
       gclog_or_tty->print("   Indexed List Returned "SIZE_FORMAT" bytes",
         indexListReturnedBytes);
       gclog_or_tty->print_cr("        Dictionary Returned "SIZE_FORMAT" bytes",
-        dictReturnedBytes);
+        dict_returned_bytes);
     }
   }
   if (CMSTraceSweeper) {
@@ -7985,9 +7985,9 @@
   if (CMSTestInFreeList) {
     if (freeRangeInFreeLists) {
       FreeChunk* fc = (FreeChunk*) freeFinger;
-      assert(fc->isFree(), "A chunk on the free list should be free.");
+      assert(fc->is_free(), "A chunk on the free list should be free.");
       assert(fc->size() > 0, "Free range should have a size");
-      assert(_sp->verifyChunkInFreeLists(fc), "Chunk is not in free lists");
+      assert(_sp->verify_chunk_in_free_list(fc), "Chunk is not in free lists");
     }
   }
 }
@@ -8057,7 +8057,7 @@
   assert(addr < _limit, "sweep invariant");
   // check if we should yield
   do_yield_check(addr);
-  if (fc->isFree()) {
+  if (fc->is_free()) {
     // Chunk that is already free
     res = fc->size();
     do_already_free_chunk(fc);
@@ -8145,7 +8145,7 @@
   // Chunks that cannot be coalesced are not in the
   // free lists.
   if (CMSTestInFreeList && !fc->cantCoalesce()) {
-    assert(_sp->verifyChunkInFreeLists(fc),
+    assert(_sp->verify_chunk_in_free_list(fc),
       "free chunk should be in free lists");
   }
   // a chunk that is already free, should not have been
@@ -8171,7 +8171,7 @@
         FreeChunk* nextChunk = (FreeChunk*)(addr + size);
         assert((HeapWord*)nextChunk <= _sp->end(), "Chunk size out of bounds?");
         if ((HeapWord*)nextChunk < _sp->end() &&     // There is another free chunk to the right ...
-            nextChunk->isFree()               &&     // ... which is free...
+            nextChunk->is_free()               &&     // ... which is free...
             nextChunk->cantCoalesce()) {             // ... but can't be coalesced
           // nothing to do
         } else {
@@ -8203,7 +8203,7 @@
           assert(ffc->size() == pointer_delta(addr, freeFinger()),
             "Size of free range is inconsistent with chunk size.");
           if (CMSTestInFreeList) {
-            assert(_sp->verifyChunkInFreeLists(ffc),
+            assert(_sp->verify_chunk_in_free_list(ffc),
               "free range is not in free lists");
           }
           _sp->removeFreeChunkFromFreeLists(ffc);
@@ -8262,7 +8262,7 @@
         assert(ffc->size() == pointer_delta(addr, freeFinger()),
           "Size of free range is inconsistent with chunk size.");
         if (CMSTestInFreeList) {
-          assert(_sp->verifyChunkInFreeLists(ffc),
+          assert(_sp->verify_chunk_in_free_list(ffc),
             "free range is not in free lists");
         }
         _sp->removeFreeChunkFromFreeLists(ffc);
@@ -8351,11 +8351,11 @@
                                                  size_t chunkSize) {
   // do_post_free_or_garbage_chunk() should only be called in the case
   // of the adaptive free list allocator.
-  const bool fcInFreeLists = fc->isFree();
+  const bool fcInFreeLists = fc->is_free();
   assert(_sp->adaptive_freelists(), "Should only be used in this case.");
   assert((HeapWord*)fc <= _limit, "sweep invariant");
   if (CMSTestInFreeList && fcInFreeLists) {
-    assert(_sp->verifyChunkInFreeLists(fc), "free chunk is not in free lists");
+    assert(_sp->verify_chunk_in_free_list(fc), "free chunk is not in free lists");
   }
 
   if (CMSTraceSweeper) {
@@ -8410,7 +8410,7 @@
       assert(ffc->size() == pointer_delta(fc_addr, freeFinger()),
         "Size of free range is inconsistent with chunk size.");
       if (CMSTestInFreeList) {
-        assert(_sp->verifyChunkInFreeLists(ffc),
+        assert(_sp->verify_chunk_in_free_list(ffc),
           "Chunk is not in free lists");
       }
       _sp->coalDeath(ffc->size());
@@ -8459,7 +8459,7 @@
                  " when examining fc = " PTR_FORMAT "(" SIZE_FORMAT ")",
                  _limit, _sp->bottom(), _sp->end(), fc, chunk_size));
   if (eob >= _limit) {
-    assert(eob == _limit || fc->isFree(), "Only a free chunk should allow us to cross over the limit");
+    assert(eob == _limit || fc->is_free(), "Only a free chunk should allow us to cross over the limit");
     if (CMSTraceSweeper) {
       gclog_or_tty->print_cr("_limit " PTR_FORMAT " reached or crossed by block "
                              "[" PTR_FORMAT "," PTR_FORMAT ") in space "
@@ -8482,8 +8482,8 @@
   if (!freeRangeInFreeLists()) {
     if (CMSTestInFreeList) {
       FreeChunk* fc = (FreeChunk*) chunk;
-      fc->setSize(size);
-      assert(!_sp->verifyChunkInFreeLists(fc),
+      fc->set_size(size);
+      assert(!_sp->verify_chunk_in_free_list(fc),
         "chunk should not be in free lists yet");
     }
     if (CMSTraceSweeper) {
@@ -8557,8 +8557,8 @@
 // This is actually very useful in a product build if it can
 // be called from the debugger.  Compile it into the product
 // as needed.
-bool debug_verifyChunkInFreeLists(FreeChunk* fc) {
-  return debug_cms_space->verifyChunkInFreeLists(fc);
+bool debug_verify_chunk_in_free_list(FreeChunk* fc) {
+  return debug_cms_space->verify_chunk_in_free_list(fc);
 }
 #endif
 
@@ -9255,7 +9255,7 @@
       size_t chunk_at_end_old_size = chunk_at_end->size();
       assert(chunk_at_end_old_size >= word_size_change,
         "Shrink is too large");
-      chunk_at_end->setSize(chunk_at_end_old_size -
+      chunk_at_end->set_size(chunk_at_end_old_size -
                           word_size_change);
       _cmsSpace->freed((HeapWord*) chunk_at_end->end(),
         word_size_change);
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp	Fri May 04 14:10:30 2012 -0700
@@ -25,10 +25,10 @@
 #ifndef SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CONCURRENTMARKSWEEPGENERATION_HPP
 #define SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CONCURRENTMARKSWEEPGENERATION_HPP
 
-#include "gc_implementation/concurrentMarkSweep/freeBlockDictionary.hpp"
 #include "gc_implementation/shared/gSpaceCounters.hpp"
 #include "gc_implementation/shared/gcStats.hpp"
 #include "gc_implementation/shared/generationCounters.hpp"
+#include "memory/freeBlockDictionary.hpp"
 #include "memory/generation.hpp"
 #include "runtime/mutexLocker.hpp"
 #include "runtime/virtualspace.hpp"
@@ -1106,7 +1106,7 @@
   ConcurrentMarkSweepGeneration(ReservedSpace rs, size_t initial_byte_size,
                                 int level, CardTableRS* ct,
                                 bool use_adaptive_freelists,
-                                FreeBlockDictionary::DictionaryChoice);
+                                FreeBlockDictionary<FreeChunk>::DictionaryChoice);
 
   // Accessors
   CMSCollector* collector() const { return _collector; }
@@ -1328,7 +1328,7 @@
   ASConcurrentMarkSweepGeneration(ReservedSpace rs, size_t initial_byte_size,
                                   int level, CardTableRS* ct,
                                   bool use_adaptive_freelists,
-                                  FreeBlockDictionary::DictionaryChoice
+                                  FreeBlockDictionary<FreeChunk>::DictionaryChoice
                                     dictionaryChoice) :
     ConcurrentMarkSweepGeneration(rs, initial_byte_size, level, ct,
       use_adaptive_freelists, dictionaryChoice) {}
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/freeBlockDictionary.cpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/freeBlockDictionary.cpp	Wed Jul 05 18:09:43 2017 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,60 +0,0 @@
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#include "precompiled.hpp"
-#include "gc_implementation/concurrentMarkSweep/freeBlockDictionary.hpp"
-#ifdef TARGET_OS_FAMILY_linux
-# include "thread_linux.inline.hpp"
-#endif
-#ifdef TARGET_OS_FAMILY_solaris
-# include "thread_solaris.inline.hpp"
-#endif
-#ifdef TARGET_OS_FAMILY_windows
-# include "thread_windows.inline.hpp"
-#endif
-#ifdef TARGET_OS_FAMILY_bsd
-# include "thread_bsd.inline.hpp"
-#endif
-
-#ifndef PRODUCT
-Mutex* FreeBlockDictionary::par_lock() const {
-  return _lock;
-}
-
-void FreeBlockDictionary::set_par_lock(Mutex* lock) {
-  _lock = lock;
-}
-
-void FreeBlockDictionary::verify_par_locked() const {
-#ifdef ASSERT
-  if (ParallelGCThreads > 0) {
-    Thread* myThread = Thread::current();
-    if (myThread->is_GC_task_thread()) {
-      assert(par_lock() != NULL, "Should be using locking?");
-      assert_lock_strong(par_lock());
-    }
-  }
-#endif // ASSERT
-}
-#endif
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/freeBlockDictionary.hpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/freeBlockDictionary.hpp	Wed Jul 05 18:09:43 2017 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,103 +0,0 @@
-/*
- * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_FREEBLOCKDICTIONARY_HPP
-#define SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_FREEBLOCKDICTIONARY_HPP
-
-#include "gc_implementation/concurrentMarkSweep/freeChunk.hpp"
-#include "memory/allocation.hpp"
-#include "memory/memRegion.hpp"
-#include "runtime/mutex.hpp"
-#include "utilities/debug.hpp"
-#include "utilities/globalDefinitions.hpp"
-#include "utilities/ostream.hpp"
-
-// A FreeBlockDictionary is an abstract superclass that will allow
-// a number of alternative implementations in the future.
-class FreeBlockDictionary: public CHeapObj {
- public:
-  enum Dither {
-    atLeast,
-    exactly,
-    roughly
-  };
-  enum DictionaryChoice {
-    dictionaryBinaryTree = 0,
-    dictionarySplayTree  = 1,
-    dictionarySkipList   = 2
-  };
-
- private:
-  NOT_PRODUCT(Mutex* _lock;)
-
- public:
-  virtual void       removeChunk(FreeChunk* fc) = 0;
-  virtual FreeChunk* getChunk(size_t size, Dither dither = atLeast) = 0;
-  virtual void       returnChunk(FreeChunk* chunk) = 0;
-  virtual size_t     totalChunkSize(debug_only(const Mutex* lock)) const = 0;
-  virtual size_t     maxChunkSize()   const = 0;
-  virtual size_t     minSize()        const = 0;
-  // Reset the dictionary to the initial conditions for a single
-  // block.
-  virtual void       reset(HeapWord* addr, size_t size) = 0;
-  virtual void       reset() = 0;
-
-  virtual void       dictCensusUpdate(size_t size, bool split, bool birth) = 0;
-  virtual bool       coalDictOverPopulated(size_t size) = 0;
-  virtual void       beginSweepDictCensus(double coalSurplusPercent,
-                       float inter_sweep_current, float inter_sweep_estimate,
-                       float intra__sweep_current) = 0;
-  virtual void       endSweepDictCensus(double splitSurplusPercent) = 0;
-  virtual FreeChunk* findLargestDict() const = 0;
-  // verify that the given chunk is in the dictionary.
-  virtual bool verifyChunkInFreeLists(FreeChunk* tc) const = 0;
-
-  // Sigma_{all_free_blocks} (block_size^2)
-  virtual double sum_of_squared_block_sizes() const = 0;
-
-  virtual FreeChunk* find_chunk_ends_at(HeapWord* target) const = 0;
-  virtual void inc_totalSize(size_t v) = 0;
-  virtual void dec_totalSize(size_t v) = 0;
-
-  NOT_PRODUCT (
-    virtual size_t   sumDictReturnedBytes() = 0;
-    virtual void     initializeDictReturnedBytes() = 0;
-    virtual size_t   totalCount() = 0;
-  )
-
-  virtual void       reportStatistics() const {
-    gclog_or_tty->print("No statistics available");
-  }
-
-  virtual void       printDictCensus() const = 0;
-  virtual void       print_free_lists(outputStream* st) const = 0;
-
-  virtual void       verify()         const = 0;
-
-  Mutex* par_lock()                const PRODUCT_RETURN0;
-  void   set_par_lock(Mutex* lock)       PRODUCT_RETURN;
-  void   verify_par_locked()       const PRODUCT_RETURN;
-};
-
-#endif // SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_FREEBLOCKDICTIONARY_HPP
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/freeChunk.cpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/freeChunk.cpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/freeChunk.cpp	Fri May 04 14:10:30 2012 -0700
@@ -23,7 +23,8 @@
  */
 
 #include "precompiled.hpp"
-#include "gc_implementation/concurrentMarkSweep/freeBlockDictionary.hpp"
+#include "gc_implementation/concurrentMarkSweep/freeChunk.hpp"
+#include "memory/freeBlockDictionary.hpp"
 #include "utilities/copy.hpp"
 
 #ifndef PRODUCT
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/freeChunk.hpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/freeChunk.hpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/freeChunk.hpp	Fri May 04 14:10:30 2012 -0700
@@ -75,20 +75,20 @@
     // calls.  We really want the read of _mark and _prev from this pointer
     // to be volatile but making the fields volatile causes all sorts of
     // compilation errors.
-    return ((volatile FreeChunk*)addr)->isFree();
+    return ((volatile FreeChunk*)addr)->is_free();
   }
 
-  bool isFree() const volatile {
+  bool is_free() const volatile {
     LP64_ONLY(if (UseCompressedOops) return mark()->is_cms_free_chunk(); else)
     return (((intptr_t)_prev) & 0x1) == 0x1;
   }
   bool cantCoalesce() const {
-    assert(isFree(), "can't get coalesce bit on not free");
+    assert(is_free(), "can't get coalesce bit on not free");
     return (((intptr_t)_prev) & 0x2) == 0x2;
   }
   void dontCoalesce() {
     // the block should be free
-    assert(isFree(), "Should look like a free block");
+    assert(is_free(), "Should look like a free block");
     _prev = (FreeChunk*)(((intptr_t)_prev) | 0x2);
   }
   FreeChunk* prev() const {
@@ -103,23 +103,23 @@
     LP64_ONLY(if (UseCompressedOops) return mark()->get_size(); else )
     return _size;
   }
-  void setSize(size_t sz) {
+  void set_size(size_t sz) {
     LP64_ONLY(if (UseCompressedOops) set_mark(markOopDesc::set_size_and_free(sz)); else )
     _size = sz;
   }
 
   FreeChunk* next()   const { return _next; }
 
-  void linkAfter(FreeChunk* ptr) {
-    linkNext(ptr);
-    if (ptr != NULL) ptr->linkPrev(this);
+  void link_after(FreeChunk* ptr) {
+    link_next(ptr);
+    if (ptr != NULL) ptr->link_prev(this);
   }
-  void linkNext(FreeChunk* ptr) { _next = ptr; }
-  void linkPrev(FreeChunk* ptr) {
+  void link_next(FreeChunk* ptr) { _next = ptr; }
+  void link_prev(FreeChunk* ptr) {
     LP64_ONLY(if (UseCompressedOops) _prev = ptr; else)
     _prev = (FreeChunk*)((intptr_t)ptr | 0x1);
   }
-  void clearNext()              { _next = NULL; }
+  void clear_next()              { _next = NULL; }
   void markNotFree() {
     // Set _prev (klass) to null before (if) clearing the mark word below
     _prev = NULL;
@@ -129,7 +129,7 @@
       set_mark(markOopDesc::prototype());
     }
 #endif
-    assert(!isFree(), "Error");
+    assert(!is_free(), "Error");
   }
 
   // Return the address past the end of this chunk
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/freeList.cpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/freeList.cpp	Wed Jul 05 18:09:43 2017 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,360 +0,0 @@
-/*
- * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#include "precompiled.hpp"
-#include "gc_implementation/concurrentMarkSweep/freeBlockDictionary.hpp"
-#include "gc_implementation/concurrentMarkSweep/freeList.hpp"
-#include "memory/sharedHeap.hpp"
-#include "runtime/globals.hpp"
-#include "runtime/mutex.hpp"
-#include "runtime/vmThread.hpp"
-
-// Free list.  A FreeList is used to access a linked list of chunks
-// of space in the heap.  The head and tail are maintained so that
-// items can be (as in the current implementation) added at the
-// at the tail of the list and removed from the head of the list to
-// maintain a FIFO queue.
-
-FreeList::FreeList() :
-  _head(NULL), _tail(NULL)
-#ifdef ASSERT
-  , _protecting_lock(NULL)
-#endif
-{
-  _size         = 0;
-  _count        = 0;
-  _hint         = 0;
-  init_statistics();
-}
-
-FreeList::FreeList(FreeChunk* fc) :
-  _head(fc), _tail(fc)
-#ifdef ASSERT
-  , _protecting_lock(NULL)
-#endif
-{
-  _size         = fc->size();
-  _count        = 1;
-  _hint         = 0;
-  init_statistics();
-#ifndef PRODUCT
-  _allocation_stats.set_returnedBytes(size() * HeapWordSize);
-#endif
-}
-
-FreeList::FreeList(HeapWord* addr, size_t size) :
-  _head((FreeChunk*) addr), _tail((FreeChunk*) addr)
-#ifdef ASSERT
-  , _protecting_lock(NULL)
-#endif
-{
-  assert(size > sizeof(FreeChunk), "size is too small");
-  head()->setSize(size);
-  _size         = size;
-  _count        = 1;
-  init_statistics();
-#ifndef PRODUCT
-  _allocation_stats.set_returnedBytes(_size * HeapWordSize);
-#endif
-}
-
-void FreeList::reset(size_t hint) {
-  set_count(0);
-  set_head(NULL);
-  set_tail(NULL);
-  set_hint(hint);
-}
-
-void FreeList::init_statistics(bool split_birth) {
-  _allocation_stats.initialize(split_birth);
-}
-
-FreeChunk* FreeList::getChunkAtHead() {
-  assert_proper_lock_protection();
-  assert(head() == NULL || head()->prev() == NULL, "list invariant");
-  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
-  FreeChunk* fc = head();
-  if (fc != NULL) {
-    FreeChunk* nextFC = fc->next();
-    if (nextFC != NULL) {
-      // The chunk fc being removed has a "next".  Set the "next" to the
-      // "prev" of fc.
-      nextFC->linkPrev(NULL);
-    } else { // removed tail of list
-      link_tail(NULL);
-    }
-    link_head(nextFC);
-    decrement_count();
-  }
-  assert(head() == NULL || head()->prev() == NULL, "list invariant");
-  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
-  return fc;
-}
-
-
-void FreeList::getFirstNChunksFromList(size_t n, FreeList* fl) {
-  assert_proper_lock_protection();
-  assert(fl->count() == 0, "Precondition");
-  if (count() > 0) {
-    int k = 1;
-    fl->set_head(head()); n--;
-    FreeChunk* tl = head();
-    while (tl->next() != NULL && n > 0) {
-      tl = tl->next(); n--; k++;
-    }
-    assert(tl != NULL, "Loop Inv.");
-
-    // First, fix up the list we took from.
-    FreeChunk* new_head = tl->next();
-    set_head(new_head);
-    set_count(count() - k);
-    if (new_head == NULL) {
-      set_tail(NULL);
-    } else {
-      new_head->linkPrev(NULL);
-    }
-    // Now we can fix up the tail.
-    tl->linkNext(NULL);
-    // And return the result.
-    fl->set_tail(tl);
-    fl->set_count(k);
-  }
-}
-
-// Remove this chunk from the list
-void FreeList::removeChunk(FreeChunk*fc) {
-   assert_proper_lock_protection();
-   assert(head() != NULL, "Remove from empty list");
-   assert(fc != NULL, "Remove a NULL chunk");
-   assert(size() == fc->size(), "Wrong list");
-   assert(head() == NULL || head()->prev() == NULL, "list invariant");
-   assert(tail() == NULL || tail()->next() == NULL, "list invariant");
-
-   FreeChunk* prevFC = fc->prev();
-   FreeChunk* nextFC = fc->next();
-   if (nextFC != NULL) {
-     // The chunk fc being removed has a "next".  Set the "next" to the
-     // "prev" of fc.
-     nextFC->linkPrev(prevFC);
-   } else { // removed tail of list
-     link_tail(prevFC);
-   }
-   if (prevFC == NULL) { // removed head of list
-     link_head(nextFC);
-     assert(nextFC == NULL || nextFC->prev() == NULL,
-       "Prev of head should be NULL");
-   } else {
-     prevFC->linkNext(nextFC);
-     assert(tail() != prevFC || prevFC->next() == NULL,
-       "Next of tail should be NULL");
-   }
-   decrement_count();
-   assert(((head() == NULL) + (tail() == NULL) + (count() == 0)) % 3 == 0,
-          "H/T/C Inconsistency");
-   // clear next and prev fields of fc, debug only
-   NOT_PRODUCT(
-     fc->linkPrev(NULL);
-     fc->linkNext(NULL);
-   )
-   assert(fc->isFree(), "Should still be a free chunk");
-   assert(head() == NULL || head()->prev() == NULL, "list invariant");
-   assert(tail() == NULL || tail()->next() == NULL, "list invariant");
-   assert(head() == NULL || head()->size() == size(), "wrong item on list");
-   assert(tail() == NULL || tail()->size() == size(), "wrong item on list");
-}
-
-// Add this chunk at the head of the list.
-void FreeList::returnChunkAtHead(FreeChunk* chunk, bool record_return) {
-  assert_proper_lock_protection();
-  assert(chunk != NULL, "insert a NULL chunk");
-  assert(size() == chunk->size(), "Wrong size");
-  assert(head() == NULL || head()->prev() == NULL, "list invariant");
-  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
-
-  FreeChunk* oldHead = head();
-  assert(chunk != oldHead, "double insertion");
-  chunk->linkAfter(oldHead);
-  link_head(chunk);
-  if (oldHead == NULL) { // only chunk in list
-    assert(tail() == NULL, "inconsistent FreeList");
-    link_tail(chunk);
-  }
-  increment_count(); // of # of chunks in list
-  DEBUG_ONLY(
-    if (record_return) {
-      increment_returnedBytes_by(size()*HeapWordSize);
-    }
-  )
-  assert(head() == NULL || head()->prev() == NULL, "list invariant");
-  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
-  assert(head() == NULL || head()->size() == size(), "wrong item on list");
-  assert(tail() == NULL || tail()->size() == size(), "wrong item on list");
-}
-
-void FreeList::returnChunkAtHead(FreeChunk* chunk) {
-  assert_proper_lock_protection();
-  returnChunkAtHead(chunk, true);
-}
-
-// Add this chunk at the tail of the list.
-void FreeList::returnChunkAtTail(FreeChunk* chunk, bool record_return) {
-  assert_proper_lock_protection();
-  assert(head() == NULL || head()->prev() == NULL, "list invariant");
-  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
-  assert(chunk != NULL, "insert a NULL chunk");
-  assert(size() == chunk->size(), "wrong size");
-
-  FreeChunk* oldTail = tail();
-  assert(chunk != oldTail, "double insertion");
-  if (oldTail != NULL) {
-    oldTail->linkAfter(chunk);
-  } else { // only chunk in list
-    assert(head() == NULL, "inconsistent FreeList");
-    link_head(chunk);
-  }
-  link_tail(chunk);
-  increment_count();  // of # of chunks in list
-  DEBUG_ONLY(
-    if (record_return) {
-      increment_returnedBytes_by(size()*HeapWordSize);
-    }
-  )
-  assert(head() == NULL || head()->prev() == NULL, "list invariant");
-  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
-  assert(head() == NULL || head()->size() == size(), "wrong item on list");
-  assert(tail() == NULL || tail()->size() == size(), "wrong item on list");
-}
-
-void FreeList::returnChunkAtTail(FreeChunk* chunk) {
-  returnChunkAtTail(chunk, true);
-}
-
-void FreeList::prepend(FreeList* fl) {
-  assert_proper_lock_protection();
-  if (fl->count() > 0) {
-    if (count() == 0) {
-      set_head(fl->head());
-      set_tail(fl->tail());
-      set_count(fl->count());
-    } else {
-      // Both are non-empty.
-      FreeChunk* fl_tail = fl->tail();
-      FreeChunk* this_head = head();
-      assert(fl_tail->next() == NULL, "Well-formedness of fl");
-      fl_tail->linkNext(this_head);
-      this_head->linkPrev(fl_tail);
-      set_head(fl->head());
-      set_count(count() + fl->count());
-    }
-    fl->set_head(NULL);
-    fl->set_tail(NULL);
-    fl->set_count(0);
-  }
-}
-
-// verifyChunkInFreeLists() is used to verify that an item is in this free list.
-// It is used as a debugging aid.
-bool FreeList::verifyChunkInFreeLists(FreeChunk* fc) const {
-  // This is an internal consistency check, not part of the check that the
-  // chunk is in the free lists.
-  guarantee(fc->size() == size(), "Wrong list is being searched");
-  FreeChunk* curFC = head();
-  while (curFC) {
-    // This is an internal consistency check.
-    guarantee(size() == curFC->size(), "Chunk is in wrong list.");
-    if (fc == curFC) {
-      return true;
-    }
-    curFC = curFC->next();
-  }
-  return false;
-}
-
-#ifndef PRODUCT
-void FreeList::verify_stats() const {
-  // The +1 of the LH comparand is to allow some "looseness" in
-  // checking: we usually call this interface when adding a block
-  // and we'll subsequently update the stats; we cannot update the
-  // stats beforehand because in the case of the large-block BT
-  // dictionary for example, this might be the first block and
-  // in that case there would be no place that we could record
-  // the stats (which are kept in the block itself).
-  assert((_allocation_stats.prevSweep() + _allocation_stats.splitBirths()
-          + _allocation_stats.coalBirths() + 1)   // Total Production Stock + 1
-         >= (_allocation_stats.splitDeaths() + _allocation_stats.coalDeaths()
-             + (ssize_t)count()),                // Total Current Stock + depletion
-         err_msg("FreeList " PTR_FORMAT " of size " SIZE_FORMAT
-                 " violates Conservation Principle: "
-                 "prevSweep(" SIZE_FORMAT ")"
-                 " + splitBirths(" SIZE_FORMAT ")"
-                 " + coalBirths(" SIZE_FORMAT ") + 1 >= "
-                 " splitDeaths(" SIZE_FORMAT ")"
-                 " coalDeaths(" SIZE_FORMAT ")"
-                 " + count(" SSIZE_FORMAT ")",
-                 this, _size, _allocation_stats.prevSweep(), _allocation_stats.splitBirths(),
-                 _allocation_stats.splitBirths(), _allocation_stats.splitDeaths(),
-                 _allocation_stats.coalDeaths(), count()));
-}
-
-void FreeList::assert_proper_lock_protection_work() const {
-  assert(_protecting_lock != NULL, "Don't call this directly");
-  assert(ParallelGCThreads > 0, "Don't call this directly");
-  Thread* thr = Thread::current();
-  if (thr->is_VM_thread() || thr->is_ConcurrentGC_thread()) {
-    // assert that we are holding the freelist lock
-  } else if (thr->is_GC_task_thread()) {
-    assert(_protecting_lock->owned_by_self(), "FreeList RACE DETECTED");
-  } else if (thr->is_Java_thread()) {
-    assert(!SafepointSynchronize::is_at_safepoint(), "Should not be executing");
-  } else {
-    ShouldNotReachHere();  // unaccounted thread type?
-  }
-}
-#endif
-
-// Print the "label line" for free list stats.
-void FreeList::print_labels_on(outputStream* st, const char* c) {
-  st->print("%16s\t", c);
-  st->print("%14s\t"    "%14s\t"    "%14s\t"    "%14s\t"    "%14s\t"
-            "%14s\t"    "%14s\t"    "%14s\t"    "%14s\t"    "%14s\t"    "\n",
-            "bfrsurp", "surplus", "desired", "prvSwep", "bfrSwep",
-            "count",   "cBirths", "cDeaths", "sBirths", "sDeaths");
-}
-
-// Print the AllocationStats for the given free list. If the second argument
-// to the call is a non-null string, it is printed in the first column;
-// otherwise, if the argument is null (the default), then the size of the
-// (free list) block is printed in the first column.
-void FreeList::print_on(outputStream* st, const char* c) const {
-  if (c != NULL) {
-    st->print("%16s", c);
-  } else {
-    st->print(SIZE_FORMAT_W(16), size());
-  }
-  st->print("\t"
-           SSIZE_FORMAT_W(14) "\t" SSIZE_FORMAT_W(14) "\t" SSIZE_FORMAT_W(14) "\t" SSIZE_FORMAT_W(14) "\t" SSIZE_FORMAT_W(14) "\t"
-           SSIZE_FORMAT_W(14) "\t" SSIZE_FORMAT_W(14) "\t" SSIZE_FORMAT_W(14) "\t" SSIZE_FORMAT_W(14) "\t" SSIZE_FORMAT_W(14) "\n",
-           bfrSurp(),             surplus(),             desired(),             prevSweep(),           beforeSweep(),
-           count(),               coalBirths(),          coalDeaths(),          splitBirths(),         splitDeaths());
-}
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/freeList.hpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/freeList.hpp	Wed Jul 05 18:09:43 2017 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,335 +0,0 @@
-/*
- * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_FREELIST_HPP
-#define SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_FREELIST_HPP
-
-#include "gc_implementation/shared/allocationStats.hpp"
-
-class CompactibleFreeListSpace;
-
-// A class for maintaining a free list of FreeChunk's.  The FreeList
-// maintains a the structure of the list (head, tail, etc.) plus
-// statistics for allocations from the list.  The links between items
-// are not part of FreeList.  The statistics are
-// used to make decisions about coalescing FreeChunk's when they
-// are swept during collection.
-//
-// See the corresponding .cpp file for a description of the specifics
-// for that implementation.
-
-class Mutex;
-class TreeList;
-
-class FreeList VALUE_OBJ_CLASS_SPEC {
-  friend class CompactibleFreeListSpace;
-  friend class VMStructs;
-  friend class PrintTreeCensusClosure;
-
- protected:
-  TreeList* _parent;
-  TreeList* _left;
-  TreeList* _right;
-
- private:
-  FreeChunk*    _head;          // Head of list of free chunks
-  FreeChunk*    _tail;          // Tail of list of free chunks
-  size_t        _size;          // Size in Heap words of each chunk
-  ssize_t       _count;         // Number of entries in list
-  size_t        _hint;          // next larger size list with a positive surplus
-
-  AllocationStats _allocation_stats; // allocation-related statistics
-
-#ifdef ASSERT
-  Mutex*        _protecting_lock;
-#endif
-
-  // Asserts false if the protecting lock (if any) is not held.
-  void assert_proper_lock_protection_work() const PRODUCT_RETURN;
-  void assert_proper_lock_protection() const {
-#ifdef ASSERT
-    if (_protecting_lock != NULL)
-      assert_proper_lock_protection_work();
-#endif
-  }
-
-  // Initialize the allocation statistics.
- protected:
-  void init_statistics(bool split_birth = false);
-  void set_count(ssize_t v) { _count = v;}
-  void increment_count()    {
-    _count++;
-  }
-
-  void decrement_count() {
-    _count--;
-    assert(_count >= 0, "Count should not be negative");
-  }
-
- public:
-  // Constructor
-  // Construct a list without any entries.
-  FreeList();
-  // Construct a list with "fc" as the first (and lone) entry in the list.
-  FreeList(FreeChunk* fc);
-  // Construct a list which will have a FreeChunk at address "addr" and
-  // of size "size" as the first (and lone) entry in the list.
-  FreeList(HeapWord* addr, size_t size);
-
-  // Reset the head, tail, hint, and count of a free list.
-  void reset(size_t hint);
-
-  // Declare the current free list to be protected by the given lock.
-#ifdef ASSERT
-  void set_protecting_lock(Mutex* protecting_lock) {
-    _protecting_lock = protecting_lock;
-  }
-#endif
-
-  // Accessors.
-  FreeChunk* head() const {
-    assert_proper_lock_protection();
-    return _head;
-  }
-  void set_head(FreeChunk* v) {
-    assert_proper_lock_protection();
-    _head = v;
-    assert(!_head || _head->size() == _size, "bad chunk size");
-  }
-  // Set the head of the list and set the prev field of non-null
-  // values to NULL.
-  void link_head(FreeChunk* v) {
-    assert_proper_lock_protection();
-    set_head(v);
-    // If this method is not used (just set the head instead),
-    // this check can be avoided.
-    if (v != NULL) {
-      v->linkPrev(NULL);
-    }
-  }
-
-  FreeChunk* tail() const {
-    assert_proper_lock_protection();
-    return _tail;
-  }
-  void set_tail(FreeChunk* v) {
-    assert_proper_lock_protection();
-    _tail = v;
-    assert(!_tail || _tail->size() == _size, "bad chunk size");
-  }
-  // Set the tail of the list and set the next field of non-null
-  // values to NULL.
-  void link_tail(FreeChunk* v) {
-    assert_proper_lock_protection();
-    set_tail(v);
-    if (v != NULL) {
-      v->clearNext();
-    }
-  }
-
-  // No locking checks in read-accessors: lock-free reads (only) are benign.
-  // Readers are expected to have the lock if they are doing work that
-  // requires atomicity guarantees in sections of code.
-  size_t size() const {
-    return _size;
-  }
-  void set_size(size_t v) {
-    assert_proper_lock_protection();
-    _size = v;
-  }
-  ssize_t count() const {
-    return _count;
-  }
-  size_t hint() const {
-    return _hint;
-  }
-  void set_hint(size_t v) {
-    assert_proper_lock_protection();
-    assert(v == 0 || _size < v, "Bad hint"); _hint = v;
-  }
-
-  // Accessors for statistics
-  AllocationStats* allocation_stats() {
-    assert_proper_lock_protection();
-    return &_allocation_stats;
-  }
-
-  ssize_t desired() const {
-    return _allocation_stats.desired();
-  }
-  void set_desired(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_desired(v);
-  }
-  void compute_desired(float inter_sweep_current,
-                       float inter_sweep_estimate,
-                       float intra_sweep_estimate) {
-    assert_proper_lock_protection();
-    _allocation_stats.compute_desired(_count,
-                                      inter_sweep_current,
-                                      inter_sweep_estimate,
-                                      intra_sweep_estimate);
-  }
-  ssize_t coalDesired() const {
-    return _allocation_stats.coalDesired();
-  }
-  void set_coalDesired(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_coalDesired(v);
-  }
-
-  ssize_t surplus() const {
-    return _allocation_stats.surplus();
-  }
-  void set_surplus(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_surplus(v);
-  }
-  void increment_surplus() {
-    assert_proper_lock_protection();
-    _allocation_stats.increment_surplus();
-  }
-  void decrement_surplus() {
-    assert_proper_lock_protection();
-    _allocation_stats.decrement_surplus();
-  }
-
-  ssize_t bfrSurp() const {
-    return _allocation_stats.bfrSurp();
-  }
-  void set_bfrSurp(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_bfrSurp(v);
-  }
-  ssize_t prevSweep() const {
-    return _allocation_stats.prevSweep();
-  }
-  void set_prevSweep(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_prevSweep(v);
-  }
-  ssize_t beforeSweep() const {
-    return _allocation_stats.beforeSweep();
-  }
-  void set_beforeSweep(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_beforeSweep(v);
-  }
-
-  ssize_t coalBirths() const {
-    return _allocation_stats.coalBirths();
-  }
-  void set_coalBirths(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_coalBirths(v);
-  }
-  void increment_coalBirths() {
-    assert_proper_lock_protection();
-    _allocation_stats.increment_coalBirths();
-  }
-
-  ssize_t coalDeaths() const {
-    return _allocation_stats.coalDeaths();
-  }
-  void set_coalDeaths(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_coalDeaths(v);
-  }
-  void increment_coalDeaths() {
-    assert_proper_lock_protection();
-    _allocation_stats.increment_coalDeaths();
-  }
-
-  ssize_t splitBirths() const {
-    return _allocation_stats.splitBirths();
-  }
-  void set_splitBirths(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_splitBirths(v);
-  }
-  void increment_splitBirths() {
-    assert_proper_lock_protection();
-    _allocation_stats.increment_splitBirths();
-  }
-
-  ssize_t splitDeaths() const {
-    return _allocation_stats.splitDeaths();
-  }
-  void set_splitDeaths(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_splitDeaths(v);
-  }
-  void increment_splitDeaths() {
-    assert_proper_lock_protection();
-    _allocation_stats.increment_splitDeaths();
-  }
-
-  NOT_PRODUCT(
-    // For debugging.  The "_returnedBytes" in all the lists are summed
-    // and compared with the total number of bytes swept during a
-    // collection.
-    size_t returnedBytes() const { return _allocation_stats.returnedBytes(); }
-    void set_returnedBytes(size_t v) { _allocation_stats.set_returnedBytes(v); }
-    void increment_returnedBytes_by(size_t v) {
-      _allocation_stats.set_returnedBytes(_allocation_stats.returnedBytes() + v);
-    }
-  )
-
-  // Unlink head of list and return it.  Returns NULL if
-  // the list is empty.
-  FreeChunk* getChunkAtHead();
-
-  // Remove the first "n" or "count", whichever is smaller, chunks from the
-  // list, setting "fl", which is required to be empty, to point to them.
-  void getFirstNChunksFromList(size_t n, FreeList* fl);
-
-  // Unlink this chunk from it's free list
-  void removeChunk(FreeChunk* fc);
-
-  // Add this chunk to this free list.
-  void returnChunkAtHead(FreeChunk* fc);
-  void returnChunkAtTail(FreeChunk* fc);
-
-  // Similar to returnChunk* but also records some diagnostic
-  // information.
-  void returnChunkAtHead(FreeChunk* fc, bool record_return);
-  void returnChunkAtTail(FreeChunk* fc, bool record_return);
-
-  // Prepend "fl" (whose size is required to be the same as that of "this")
-  // to the front of "this" list.
-  void prepend(FreeList* fl);
-
-  // Verify that the chunk is in the list.
-  // found.  Return NULL if "fc" is not found.
-  bool verifyChunkInFreeLists(FreeChunk* fc) const;
-
-  // Stats verification
-  void verify_stats() const PRODUCT_RETURN;
-
-  // Printing support
-  static void print_labels_on(outputStream* st, const char* c);
-  void print_on(outputStream* st, const char* c = NULL) const;
-};
-
-#endif // SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_FREELIST_HPP
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/promotionInfo.cpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/promotionInfo.cpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/promotionInfo.cpp	Fri May 04 14:10:30 2012 -0700
@@ -121,7 +121,7 @@
 void PromotionInfo::track(PromotedObject* trackOop, klassOop klassOfOop) {
   // make a copy of header as it may need to be spooled
   markOop mark = oop(trackOop)->mark();
-  trackOop->clearNext();
+  trackOop->clear_next();
   if (mark->must_be_preserved_for_cms_scavenge(klassOfOop)) {
     // save non-prototypical header, and mark oop
     saveDisplacedHeader(mark);
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/promotionInfo.hpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/promotionInfo.hpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/promotionInfo.hpp	Fri May 04 14:10:30 2012 -0700
@@ -43,7 +43,7 @@
   // whose position will depend on endian-ness of the platform.
   // This is so that there is no interference with the
   // cms_free_bit occupying bit position 7 (lsb == 0)
-  // when we are using compressed oops; see FreeChunk::isFree().
+  // when we are using compressed oops; see FreeChunk::is_free().
   // We cannot move the cms_free_bit down because currently
   // biased locking code assumes that age bits are contiguous
   // with the lock bits. Even if that assumption were relaxed,
@@ -65,7 +65,7 @@
   };
  public:
   inline PromotedObject* next() const {
-    assert(!((FreeChunk*)this)->isFree(), "Error");
+    assert(!((FreeChunk*)this)->is_free(), "Error");
     PromotedObject* res;
     if (UseCompressedOops) {
       // The next pointer is a compressed oop stored in the top 32 bits
@@ -85,27 +85,27 @@
     } else {
       _next |= (intptr_t)x;
     }
-    assert(!((FreeChunk*)this)->isFree(), "Error");
+    assert(!((FreeChunk*)this)->is_free(), "Error");
   }
   inline void setPromotedMark() {
     _next |= promoted_mask;
-    assert(!((FreeChunk*)this)->isFree(), "Error");
+    assert(!((FreeChunk*)this)->is_free(), "Error");
   }
   inline bool hasPromotedMark() const {
-    assert(!((FreeChunk*)this)->isFree(), "Error");
+    assert(!((FreeChunk*)this)->is_free(), "Error");
     return (_next & promoted_mask) == promoted_mask;
   }
   inline void setDisplacedMark() {
     _next |= displaced_mark;
-    assert(!((FreeChunk*)this)->isFree(), "Error");
+    assert(!((FreeChunk*)this)->is_free(), "Error");
   }
   inline bool hasDisplacedMark() const {
-    assert(!((FreeChunk*)this)->isFree(), "Error");
+    assert(!((FreeChunk*)this)->is_free(), "Error");
     return (_next & displaced_mark) != 0;
   }
-  inline void clearNext()        {
+  inline void clear_next()        {
     _next = 0;
-    assert(!((FreeChunk*)this)->isFree(), "Error");
+    assert(!((FreeChunk*)this)->is_free(), "Error");
   }
   debug_only(void *next_addr() { return (void *) &_next; })
 };
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/vmStructs_cms.hpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/vmStructs_cms.hpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/vmStructs_cms.hpp	Fri May 04 14:10:30 2012 -0700
@@ -44,11 +44,11 @@
   nonstatic_field(FreeChunk,                   _next,                                         FreeChunk*)                            \
   nonstatic_field(FreeChunk,                   _prev,                                         FreeChunk*)                            \
   nonstatic_field(LinearAllocBlock,            _word_size,                                    size_t)                                \
-  nonstatic_field(FreeList,                    _size,                                         size_t)                                \
-  nonstatic_field(FreeList,                    _count,                                        ssize_t)                               \
-  nonstatic_field(BinaryTreeDictionary,        _totalSize,                                    size_t)                                \
-  nonstatic_field(CompactibleFreeListSpace,    _dictionary,                                   FreeBlockDictionary*)                  \
-  nonstatic_field(CompactibleFreeListSpace,    _indexedFreeList[0],                           FreeList)                              \
+  nonstatic_field(FreeList<FreeChunk>,         _size,                                         size_t)                                \
+  nonstatic_field(FreeList<FreeChunk>,         _count,                                        ssize_t)                               \
+  nonstatic_field(BinaryTreeDictionary<FreeChunk>,_total_size,                                 size_t)                                \
+  nonstatic_field(CompactibleFreeListSpace,    _dictionary,                                   FreeBlockDictionary<FreeChunk>*)       \
+  nonstatic_field(CompactibleFreeListSpace,    _indexedFreeList[0],                           FreeList<FreeChunk>)                   \
   nonstatic_field(CompactibleFreeListSpace,    _smallLinearAllocBlock,                        LinearAllocBlock)
 
 
@@ -70,13 +70,13 @@
   declare_toplevel_type(CompactibleFreeListSpace*)                        \
   declare_toplevel_type(CMSCollector*)                                    \
   declare_toplevel_type(FreeChunk*)                                       \
-  declare_toplevel_type(BinaryTreeDictionary*)                            \
-  declare_toplevel_type(FreeBlockDictionary*)                             \
-  declare_toplevel_type(FreeList*)                                        \
-  declare_toplevel_type(FreeList)                                         \
+  declare_toplevel_type(BinaryTreeDictionary<FreeChunk>*)                 \
+  declare_toplevel_type(FreeBlockDictionary<FreeChunk>*)                  \
+  declare_toplevel_type(FreeList<FreeChunk>*)                             \
+  declare_toplevel_type(FreeList<FreeChunk>)                              \
   declare_toplevel_type(LinearAllocBlock)                                 \
-  declare_toplevel_type(FreeBlockDictionary)                              \
-            declare_type(BinaryTreeDictionary,        FreeBlockDictionary)
+  declare_toplevel_type(FreeBlockDictionary<FreeChunk>)                   \
+            declare_type(BinaryTreeDictionary<FreeChunk>, FreeBlockDictionary<FreeChunk>)
 
 #define VM_INT_CONSTANTS_CMS(declare_constant)                            \
   declare_constant(Generation::ConcurrentMarkSweep)                       \
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/g1/concurrentMark.cpp
--- a/hotspot/src/share/vm/gc_implementation/g1/concurrentMark.cpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/g1/concurrentMark.cpp	Fri May 04 14:10:30 2012 -0700
@@ -1183,35 +1183,31 @@
   g1p->record_concurrent_mark_remark_end();
 }
 
-// Used to calculate the # live objects per region
-// for verification purposes
-class CalcLiveObjectsClosure: public HeapRegionClosure {
-
-  CMBitMapRO* _bm;
+// Base class of the closures that finalize and verify the
+// liveness counting data.
+class CMCountDataClosureBase: public HeapRegionClosure {
+protected:
   ConcurrentMark* _cm;
   BitMap* _region_bm;
   BitMap* _card_bm;
 
-  size_t _region_marked_bytes;
-
-  intptr_t _bottom_card_num;
-
-  void mark_card_num_range(intptr_t start_card_num, intptr_t last_card_num) {
-    assert(start_card_num <= last_card_num, "sanity");
-    BitMap::idx_t start_idx = start_card_num - _bottom_card_num;
-    BitMap::idx_t last_idx = last_card_num - _bottom_card_num;
-
-    for (BitMap::idx_t i = start_idx; i <= last_idx; i += 1) {
-      _card_bm->par_at_put(i, 1);
+  void set_card_bitmap_range(BitMap::idx_t start_idx, BitMap::idx_t last_idx) {
+    assert(start_idx <= last_idx, "sanity");
+
+    // Set the inclusive bit range [start_idx, last_idx].
+    // For small ranges (up to 8 cards) use a simple loop; otherwise
+    // use par_at_put_range.
+    if ((last_idx - start_idx) < 8) {
+      for (BitMap::idx_t i = start_idx; i <= last_idx; i += 1) {
+        _card_bm->par_set_bit(i);
+      }
+    } else {
+      assert(last_idx < _card_bm->size(), "sanity");
+      // Note BitMap::par_at_put_range() is exclusive.
+      _card_bm->par_at_put_range(start_idx, last_idx+1, true);
     }
   }
 
-public:
-  CalcLiveObjectsClosure(CMBitMapRO *bm, ConcurrentMark *cm,
-                         BitMap* region_bm, BitMap* card_bm) :
-    _bm(bm), _cm(cm), _region_bm(region_bm), _card_bm(card_bm),
-    _region_marked_bytes(0), _bottom_card_num(cm->heap_bottom_card_num()) { }
-
   // It takes a region that's not empty (i.e., it has at least one
   // live object in it and sets its corresponding bit on the region
   // bitmap to 1. If the region is "starts humongous" it will also set
@@ -1234,6 +1230,24 @@
     }
   }
 
+public:
+  CMCountDataClosureBase(ConcurrentMark *cm,
+                         BitMap* region_bm, BitMap* card_bm):
+    _cm(cm), _region_bm(region_bm), _card_bm(card_bm) { }
+};
+
+// Closure that calculates the # live objects per region. Used
+// for verification purposes during the cleanup pause.
+class CalcLiveObjectsClosure: public CMCountDataClosureBase {
+  CMBitMapRO* _bm;
+  size_t _region_marked_bytes;
+
+public:
+  CalcLiveObjectsClosure(CMBitMapRO *bm, ConcurrentMark *cm,
+                         BitMap* region_bm, BitMap* card_bm) :
+    CMCountDataClosureBase(cm, region_bm, card_bm),
+    _bm(bm), _region_marked_bytes(0) { }
+
   bool doHeapRegion(HeapRegion* hr) {
 
     if (hr->continuesHumongous()) {
@@ -1260,65 +1274,31 @@
 
     size_t marked_bytes = 0;
 
-    // Below, the term "card num" means the result of shifting an address
-    // by the card shift -- address 0 corresponds to card number 0.  One
-    // must subtract the card num of the bottom of the heap to obtain a
-    // card table index.
-
-    // The first card num of the sequence of live cards currently being
-    // constructed.  -1 ==> no sequence.
-    intptr_t start_card_num = -1;
-
-    // The last card num of the sequence of live cards currently being
-    // constructed.  -1 ==> no sequence.
-    intptr_t last_card_num = -1;
-
     while (start < nextTop) {
       oop obj = oop(start);
       int obj_sz = obj->size();
-
-      // The card num of the start of the current object.
-      intptr_t obj_card_num =
-        intptr_t(uintptr_t(start) >> CardTableModRefBS::card_shift);
       HeapWord* obj_last = start + obj_sz - 1;
-      intptr_t obj_last_card_num =
-        intptr_t(uintptr_t(obj_last) >> CardTableModRefBS::card_shift);
-
-      if (obj_card_num != last_card_num) {
-        if (start_card_num == -1) {
-          assert(last_card_num == -1, "Both or neither.");
-          start_card_num = obj_card_num;
-        } else {
-          assert(last_card_num != -1, "Both or neither.");
-          assert(obj_card_num >= last_card_num, "Inv");
-          if ((obj_card_num - last_card_num) > 1) {
-            // Mark the last run, and start a new one.
-            mark_card_num_range(start_card_num, last_card_num);
-            start_card_num = obj_card_num;
-          }
-        }
-      }
-      // In any case, we set the last card num.
-      last_card_num = obj_last_card_num;
-
+
+      BitMap::idx_t start_idx = _cm->card_bitmap_index_for(start);
+      BitMap::idx_t last_idx = _cm->card_bitmap_index_for(obj_last);
+
+      // Set the bits in the card BM for this object (inclusive).
+      set_card_bitmap_range(start_idx, last_idx);
+
+      // Add the size of this object to the number of marked bytes.
       marked_bytes += (size_t)obj_sz * HeapWordSize;
 
       // Find the next marked object after this one.
-      start = _bm->getNextMarkedWordAddress(start + 1, nextTop);
-    }
-
-    // Handle the last range, if any.
-    if (start_card_num != -1) {
-      mark_card_num_range(start_card_num, last_card_num);
+      start = _bm->getNextMarkedWordAddress(obj_last + 1, nextTop);
     }
 
     // Mark the allocated-since-marking portion...
     HeapWord* top = hr->top();
     if (nextTop < top) {
-      start_card_num = intptr_t(uintptr_t(nextTop) >> CardTableModRefBS::card_shift);
-      last_card_num = intptr_t(uintptr_t(top) >> CardTableModRefBS::card_shift);
-
-      mark_card_num_range(start_card_num, last_card_num);
+      BitMap::idx_t start_idx = _cm->card_bitmap_index_for(nextTop);
+      BitMap::idx_t last_idx = _cm->card_bitmap_index_for(top - 1);
+
+      set_card_bitmap_range(start_idx, last_idx);
 
       // This definitely means the region has live objects.
       set_bit_for_region(hr);
@@ -1394,17 +1374,6 @@
     MutexLockerEx x((_verbose ? ParGCRareEvent_lock : NULL),
                     Mutex::_no_safepoint_check_flag);
 
-    // Verify that _top_at_conc_count == ntams
-    if (hr->top_at_conc_mark_count() != hr->next_top_at_mark_start()) {
-      if (_verbose) {
-        gclog_or_tty->print_cr("Region %u: top at conc count incorrect: "
-                               "expected " PTR_FORMAT ", actual: " PTR_FORMAT,
-                               hr->hrs_index(), hr->next_top_at_mark_start(),
-                               hr->top_at_conc_mark_count());
-      }
-      failures += 1;
-    }
-
     // Verify the marked bytes for this region.
     size_t exp_marked_bytes = _calc_cl.region_marked_bytes();
     size_t act_marked_bytes = hr->next_marked_bytes();
@@ -1470,7 +1439,7 @@
     _failures += failures;
 
     // We could stop iteration over the heap when we
-    // find the first voilating region by returning true.
+    // find the first violating region by returning true.
     return false;
   }
 };
@@ -1543,62 +1512,19 @@
   int failures() const { return _failures; }
 };
 
-// Final update of count data (during cleanup).
-// Adds [top_at_count, NTAMS) to the marked bytes for each
-// region. Sets the bits in the card bitmap corresponding
-// to the interval [top_at_count, top], and sets the
-// liveness bit for each region containing live data
-// in the region bitmap.
-
-class FinalCountDataUpdateClosure: public HeapRegionClosure {
-  ConcurrentMark* _cm;
-  BitMap* _region_bm;
-  BitMap* _card_bm;
-
-  void set_card_bitmap_range(BitMap::idx_t start_idx, BitMap::idx_t last_idx) {
-    assert(start_idx <= last_idx, "sanity");
-
-    // Set the inclusive bit range [start_idx, last_idx].
-    // For small ranges (up to 8 cards) use a simple loop; otherwise
-    // use par_at_put_range.
-    if ((last_idx - start_idx) <= 8) {
-      for (BitMap::idx_t i = start_idx; i <= last_idx; i += 1) {
-        _card_bm->par_set_bit(i);
-      }
-    } else {
-      assert(last_idx < _card_bm->size(), "sanity");
-      // Note BitMap::par_at_put_range() is exclusive.
-      _card_bm->par_at_put_range(start_idx, last_idx+1, true);
-    }
-  }
-
-  // It takes a region that's not empty (i.e., it has at least one
-  // live object in it and sets its corresponding bit on the region
-  // bitmap to 1. If the region is "starts humongous" it will also set
-  // to 1 the bits on the region bitmap that correspond to its
-  // associated "continues humongous" regions.
-  void set_bit_for_region(HeapRegion* hr) {
-    assert(!hr->continuesHumongous(), "should have filtered those out");
-
-    BitMap::idx_t index = (BitMap::idx_t) hr->hrs_index();
-    if (!hr->startsHumongous()) {
-      // Normal (non-humongous) case: just set the bit.
-      _region_bm->par_set_bit(index);
-    } else {
-      // Starts humongous case: calculate how many regions are part of
-      // this humongous region and then set the bit range.
-      G1CollectedHeap* g1h = G1CollectedHeap::heap();
-      HeapRegion *last_hr = g1h->heap_region_containing_raw(hr->end() - 1);
-      BitMap::idx_t end_index = (BitMap::idx_t) last_hr->hrs_index() + 1;
-      _region_bm->par_at_put_range(index, end_index, true);
-    }
-  }
-
+// Closure that finalizes the liveness counting data.
+// Used during the cleanup pause.
+// Sets the bits corresponding to the interval [NTAMS, top]
+// (which contains the implicitly live objects) in the
+// card liveness bitmap. Also sets the bit for each region,
+// containing live data, in the region liveness bitmap.
+
+class FinalCountDataUpdateClosure: public CMCountDataClosureBase {
  public:
   FinalCountDataUpdateClosure(ConcurrentMark* cm,
                               BitMap* region_bm,
                               BitMap* card_bm) :
-    _cm(cm), _region_bm(region_bm), _card_bm(card_bm) { }
+    CMCountDataClosureBase(cm, region_bm, card_bm) { }
 
   bool doHeapRegion(HeapRegion* hr) {
 
@@ -1613,26 +1539,10 @@
       return false;
     }
 
-    HeapWord* start = hr->top_at_conc_mark_count();
     HeapWord* ntams = hr->next_top_at_mark_start();
     HeapWord* top   = hr->top();
 
-    assert(hr->bottom() <= start && start <= hr->end() &&
-           hr->bottom() <= ntams && ntams <= hr->end(), "Preconditions.");
-
-    if (start < ntams) {
-      // Region was changed between remark and cleanup pauses
-      // We need to add (ntams - start) to the marked bytes
-      // for this region, and set bits for the range
-      // [ card_idx(start), card_idx(ntams) ) in the card bitmap.
-      size_t live_bytes = (ntams - start) * HeapWordSize;
-      hr->add_to_marked_bytes(live_bytes);
-
-      // Record the new top at conc count
-      hr->set_top_at_conc_mark_count(ntams);
-
-      // The setting of the bits in the card bitmap takes place below
-    }
+    assert(hr->bottom() <= ntams && ntams <= hr->end(), "Preconditions.");
 
     // Mark the allocated-since-marking portion...
     if (ntams < top) {
@@ -1640,8 +1550,8 @@
       set_bit_for_region(hr);
     }
 
-    // Now set the bits for [start, top]
-    BitMap::idx_t start_idx = _cm->card_bitmap_index_for(start);
+    // Now set the bits for [ntams, top]
+    BitMap::idx_t start_idx = _cm->card_bitmap_index_for(ntams);
     BitMap::idx_t last_idx = _cm->card_bitmap_index_for(top);
     set_card_bitmap_range(start_idx, last_idx);
 
@@ -3072,9 +2982,6 @@
     // Update the marked bytes for this region.
     hr->add_to_marked_bytes(marked_bytes);
 
-    // Now set the top at count to NTAMS.
-    hr->set_top_at_conc_mark_count(limit);
-
     // Next heap region
     return false;
   }
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
--- a/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Fri May 04 14:10:30 2012 -0700
@@ -368,16 +368,11 @@
     if (curr == NULL)
       gclog_or_tty->print_cr("  empty");
     while (curr != NULL) {
-      gclog_or_tty->print_cr("  [%08x-%08x], t: %08x, P: %08x, N: %08x, C: %08x, "
-                             "age: %4d, y: %d, surv: %d",
-                             curr->bottom(), curr->end(),
-                             curr->top(),
+      gclog_or_tty->print_cr("  "HR_FORMAT", P: "PTR_FORMAT "N: "PTR_FORMAT", age: %4d",
+                             HR_FORMAT_PARAMS(curr),
                              curr->prev_top_at_mark_start(),
                              curr->next_top_at_mark_start(),
-                             curr->top_at_conc_mark_count(),
-                             curr->age_in_surv_rate_group_cond(),
-                             curr->is_young(),
-                             curr->is_survivor());
+                             curr->age_in_surv_rate_group_cond());
       curr = curr->get_next_young_region();
     }
   }
@@ -1253,12 +1248,13 @@
     IsGCActiveMark x;
 
     // Timing
-    bool system_gc = (gc_cause() == GCCause::_java_lang_system_gc);
-    assert(!system_gc || explicit_gc, "invariant");
+    assert(gc_cause() != GCCause::_java_lang_system_gc || explicit_gc, "invariant");
     gclog_or_tty->date_stamp(G1Log::fine() && PrintGCDateStamps);
     TraceCPUTime tcpu(G1Log::finer(), true, gclog_or_tty);
-    TraceTime t(system_gc ? "Full GC (System.gc())" : "Full GC",
-                G1Log::fine(), true, gclog_or_tty);
+
+    char verbose_str[128];
+    sprintf(verbose_str, "Full GC (%s)", GCCause::to_string(gc_cause()));
+    TraceTime t(verbose_str, G1Log::fine(), true, gclog_or_tty);
 
     TraceCollectorStats tcs(g1mm()->full_collection_counters());
     TraceMemoryManagerStats tms(true /* fullGC */, gc_cause());
@@ -3593,25 +3589,22 @@
 
   // Inner scope for scope based logging, timers, and stats collection
   {
-    char verbose_str[128];
-    sprintf(verbose_str, "GC pause ");
-    if (g1_policy()->gcs_are_young()) {
-      strcat(verbose_str, "(young)");
-    } else {
-      strcat(verbose_str, "(mixed)");
-    }
     if (g1_policy()->during_initial_mark_pause()) {
-      strcat(verbose_str, " (initial-mark)");
       // We are about to start a marking cycle, so we increment the
       // full collection counter.
       increment_total_full_collections();
     }
-
     // if the log level is "finer" is on, we'll print long statistics information
     // in the collector policy code, so let's not print this as the output
     // is messy if we do.
     gclog_or_tty->date_stamp(G1Log::fine() && PrintGCDateStamps);
     TraceCPUTime tcpu(G1Log::finer(), true, gclog_or_tty);
+
+    char verbose_str[128];
+    sprintf(verbose_str, "GC pause (%s) (%s)%s",
+      GCCause::to_string(gc_cause()),
+      g1_policy()->gcs_are_young() ? "young" : "mixed",
+      g1_policy()->during_initial_mark_pause() ? " (initial-mark)" : "");
     TraceTime t(verbose_str, G1Log::fine() && !G1Log::finer(), true, gclog_or_tty);
 
     TraceCollectorStats tcs(g1mm()->incremental_collection_counters());
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp
--- a/hotspot/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp	Fri May 04 14:10:30 2012 -0700
@@ -886,8 +886,9 @@
                                                       size_t start_used) {
   if (G1Log::finer()) {
     gclog_or_tty->stamp(PrintGCTimeStamps);
-    gclog_or_tty->print("[GC pause");
-    gclog_or_tty->print(" (%s)", gcs_are_young() ? "young" : "mixed");
+    gclog_or_tty->print("[GC pause (%s) (%s)",
+      GCCause::to_string(_g1->gc_cause()),
+      gcs_are_young() ? "young" : "mixed");
   }
 
   // We only need to do this here as the policy will only be applied
@@ -2459,16 +2460,10 @@
   while (csr != NULL) {
     HeapRegion* next = csr->next_in_collection_set();
     assert(csr->in_collection_set(), "bad CS");
-    st->print_cr("  [%08x-%08x], t: %08x, P: %08x, N: %08x, C: %08x, "
-                 "age: %4d, y: %d, surv: %d",
-                        csr->bottom(), csr->end(),
-                        csr->top(),
-                        csr->prev_top_at_mark_start(),
-                        csr->next_top_at_mark_start(),
-                        csr->top_at_conc_mark_count(),
-                        csr->age_in_surv_rate_group_cond(),
-                        csr->is_young(),
-                        csr->is_survivor());
+    st->print_cr("  "HR_FORMAT", P: "PTR_FORMAT "N: "PTR_FORMAT", age: %4d",
+                 HR_FORMAT_PARAMS(csr),
+                 csr->prev_top_at_mark_start(), csr->next_top_at_mark_start(),
+                 csr->age_in_surv_rate_group_cond());
     csr = next;
   }
 }
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/g1/heapRegion.cpp
--- a/hotspot/src/share/vm/gc_implementation/g1/heapRegion.cpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/g1/heapRegion.cpp	Fri May 04 14:10:30 2012 -0700
@@ -510,9 +510,6 @@
   _rem_set =  new HeapRegionRemSet(sharedOffsetArray, this);
 
   assert(HeapRegionRemSet::num_par_rem_sets() > 0, "Invariant.");
-  // In case the region is allocated during a pause, note the top.
-  // We haven't done any counting on a brand new region.
-  _top_at_conc_mark_count = bottom();
 }
 
 class NextCompactionHeapRegionClosure: public HeapRegionClosure {
@@ -585,14 +582,12 @@
     // we find to be self-forwarded on the next bitmap. So all
     // objects need to be below NTAMS.
     _next_top_at_mark_start = top();
-    set_top_at_conc_mark_count(bottom());
     _next_marked_bytes = 0;
   } else if (during_conc_mark) {
     // During concurrent mark, all objects in the CSet (including
     // the ones we find to be self-forwarded) are implicitly live.
     // So all objects need to be above NTAMS.
     _next_top_at_mark_start = bottom();
-    set_top_at_conc_mark_count(bottom());
     _next_marked_bytes = 0;
   }
 }
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/g1/heapRegion.hpp
--- a/hotspot/src/share/vm/gc_implementation/g1/heapRegion.hpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/g1/heapRegion.hpp	Fri May 04 14:10:30 2012 -0700
@@ -306,9 +306,6 @@
   // If a collection pause is in progress, this is the top at the start
   // of that pause.
 
-  // We've counted the marked bytes of objects below here.
-  HeapWord* _top_at_conc_mark_count;
-
   void init_top_at_mark_start() {
     assert(_prev_marked_bytes == 0 &&
            _next_marked_bytes == 0,
@@ -316,7 +313,6 @@
     HeapWord* bot = bottom();
     _prev_top_at_mark_start = bot;
     _next_top_at_mark_start = bot;
-    _top_at_conc_mark_count = bot;
   }
 
   void set_young_type(YoungType new_type) {
@@ -625,19 +621,6 @@
   // last mark phase ended.
   bool is_marked() { return _prev_top_at_mark_start != bottom(); }
 
-  void init_top_at_conc_mark_count() {
-    _top_at_conc_mark_count = bottom();
-  }
-
-  void set_top_at_conc_mark_count(HeapWord *cur) {
-    assert(bottom() <= cur && cur <= end(), "Sanity.");
-    _top_at_conc_mark_count = cur;
-  }
-
-  HeapWord* top_at_conc_mark_count() {
-    return _top_at_conc_mark_count;
-  }
-
   void reset_during_compaction() {
     guarantee( isHumongous() && startsHumongous(),
                "should only be called for humongous regions");
@@ -733,7 +716,6 @@
     _evacuation_failed = b;
 
     if (b) {
-      init_top_at_conc_mark_count();
       _next_marked_bytes = 0;
     }
   }
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/g1/heapRegion.inline.hpp
--- a/hotspot/src/share/vm/gc_implementation/g1/heapRegion.inline.hpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/g1/heapRegion.inline.hpp	Fri May 04 14:10:30 2012 -0700
@@ -56,7 +56,6 @@
 }
 
 inline void HeapRegion::note_start_of_marking() {
-  init_top_at_conc_mark_count();
   _next_marked_bytes = 0;
   _next_top_at_mark_start = top();
 }
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/gc_implementation/shared/allocationStats.hpp
--- a/hotspot/src/share/vm/gc_implementation/shared/allocationStats.hpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/gc_implementation/shared/allocationStats.hpp	Fri May 04 14:10:30 2012 -0700
@@ -39,7 +39,7 @@
   // We measure the demand between the end of the previous sweep and
   // beginning of this sweep:
   //   Count(end_last_sweep) - Count(start_this_sweep)
-  //     + splitBirths(between) - splitDeaths(between)
+  //     + split_births(between) - split_deaths(between)
   // The above number divided by the time since the end of the
   // previous sweep gives us a time rate of demand for blocks
   // of this size. We compute a padded average of this rate as
@@ -51,34 +51,34 @@
   AdaptivePaddedAverage _demand_rate_estimate;
 
   ssize_t     _desired;         // Demand stimate computed as described above
-  ssize_t     _coalDesired;     // desired +/- small-percent for tuning coalescing
+  ssize_t     _coal_desired;     // desired +/- small-percent for tuning coalescing
 
   ssize_t     _surplus;         // count - (desired +/- small-percent),
                                 // used to tune splitting in best fit
-  ssize_t     _bfrSurp;         // surplus at start of current sweep
-  ssize_t     _prevSweep;       // count from end of previous sweep
-  ssize_t     _beforeSweep;     // count from before current sweep
-  ssize_t     _coalBirths;      // additional chunks from coalescing
-  ssize_t     _coalDeaths;      // loss from coalescing
-  ssize_t     _splitBirths;     // additional chunks from splitting
-  ssize_t     _splitDeaths;     // loss from splitting
-  size_t      _returnedBytes;   // number of bytes returned to list.
+  ssize_t     _bfr_surp;         // surplus at start of current sweep
+  ssize_t     _prev_sweep;       // count from end of previous sweep
+  ssize_t     _before_sweep;     // count from before current sweep
+  ssize_t     _coal_births;      // additional chunks from coalescing
+  ssize_t     _coal_deaths;      // loss from coalescing
+  ssize_t     _split_births;     // additional chunks from splitting
+  ssize_t     _split_deaths;     // loss from splitting
+  size_t      _returned_bytes;   // number of bytes returned to list.
  public:
   void initialize(bool split_birth = false) {
     AdaptivePaddedAverage* dummy =
       new (&_demand_rate_estimate) AdaptivePaddedAverage(CMS_FLSWeight,
                                                          CMS_FLSPadding);
     _desired = 0;
-    _coalDesired = 0;
+    _coal_desired = 0;
     _surplus = 0;
-    _bfrSurp = 0;
-    _prevSweep = 0;
-    _beforeSweep = 0;
-    _coalBirths = 0;
-    _coalDeaths = 0;
-    _splitBirths = (split_birth ? 1 : 0);
-    _splitDeaths = 0;
-    _returnedBytes = 0;
+    _bfr_surp = 0;
+    _prev_sweep = 0;
+    _before_sweep = 0;
+    _coal_births = 0;
+    _coal_deaths = 0;
+    _split_births = (split_birth ? 1 : 0);
+    _split_deaths = 0;
+    _returned_bytes = 0;
   }
 
   AllocationStats() {
@@ -99,12 +99,12 @@
     // vulnerable to noisy glitches. In such cases, we
     // ignore the current sample and use currently available
     // historical estimates.
-    assert(prevSweep() + splitBirths() + coalBirths()        // "Total Production Stock"
-           >= splitDeaths() + coalDeaths() + (ssize_t)count, // "Current stock + depletion"
+    assert(prev_sweep() + split_births() + coal_births()        // "Total Production Stock"
+           >= split_deaths() + coal_deaths() + (ssize_t)count, // "Current stock + depletion"
            "Conservation Principle");
     if (inter_sweep_current > _threshold) {
-      ssize_t demand = prevSweep() - (ssize_t)count + splitBirths() + coalBirths()
-                       - splitDeaths() - coalDeaths();
+      ssize_t demand = prev_sweep() - (ssize_t)count + split_births() + coal_births()
+                       - split_deaths() - coal_deaths();
       assert(demand >= 0,
              err_msg("Demand (" SSIZE_FORMAT ") should be non-negative for "
                      PTR_FORMAT " (size=" SIZE_FORMAT ")",
@@ -130,40 +130,40 @@
   ssize_t desired() const { return _desired; }
   void set_desired(ssize_t v) { _desired = v; }
 
-  ssize_t coalDesired() const { return _coalDesired; }
-  void set_coalDesired(ssize_t v) { _coalDesired = v; }
+  ssize_t coal_desired() const { return _coal_desired; }
+  void set_coal_desired(ssize_t v) { _coal_desired = v; }
 
   ssize_t surplus() const { return _surplus; }
   void set_surplus(ssize_t v) { _surplus = v; }
   void increment_surplus() { _surplus++; }
   void decrement_surplus() { _surplus--; }
 
-  ssize_t bfrSurp() const { return _bfrSurp; }
-  void set_bfrSurp(ssize_t v) { _bfrSurp = v; }
-  ssize_t prevSweep() const { return _prevSweep; }
-  void set_prevSweep(ssize_t v) { _prevSweep = v; }
-  ssize_t beforeSweep() const { return _beforeSweep; }
-  void set_beforeSweep(ssize_t v) { _beforeSweep = v; }
+  ssize_t bfr_surp() const { return _bfr_surp; }
+  void set_bfr_surp(ssize_t v) { _bfr_surp = v; }
+  ssize_t prev_sweep() const { return _prev_sweep; }
+  void set_prev_sweep(ssize_t v) { _prev_sweep = v; }
+  ssize_t before_sweep() const { return _before_sweep; }
+  void set_before_sweep(ssize_t v) { _before_sweep = v; }
 
-  ssize_t coalBirths() const { return _coalBirths; }
-  void set_coalBirths(ssize_t v) { _coalBirths = v; }
-  void increment_coalBirths() { _coalBirths++; }
+  ssize_t coal_births() const { return _coal_births; }
+  void set_coal_births(ssize_t v) { _coal_births = v; }
+  void increment_coal_births() { _coal_births++; }
 
-  ssize_t coalDeaths() const { return _coalDeaths; }
-  void set_coalDeaths(ssize_t v) { _coalDeaths = v; }
-  void increment_coalDeaths() { _coalDeaths++; }
+  ssize_t coal_deaths() const { return _coal_deaths; }
+  void set_coal_deaths(ssize_t v) { _coal_deaths = v; }
+  void increment_coal_deaths() { _coal_deaths++; }
 
-  ssize_t splitBirths() const { return _splitBirths; }
-  void set_splitBirths(ssize_t v) { _splitBirths = v; }
-  void increment_splitBirths() { _splitBirths++; }
+  ssize_t split_births() const { return _split_births; }
+  void set_split_births(ssize_t v) { _split_births = v; }
+  void increment_split_births() { _split_births++; }
 
-  ssize_t splitDeaths() const { return _splitDeaths; }
-  void set_splitDeaths(ssize_t v) { _splitDeaths = v; }
-  void increment_splitDeaths() { _splitDeaths++; }
+  ssize_t split_deaths() const { return _split_deaths; }
+  void set_split_deaths(ssize_t v) { _split_deaths = v; }
+  void increment_split_deaths() { _split_deaths++; }
 
   NOT_PRODUCT(
-    size_t returnedBytes() const { return _returnedBytes; }
-    void set_returnedBytes(size_t v) { _returnedBytes = v; }
+    size_t returned_bytes() const { return _returned_bytes; }
+    void set_returned_bytes(size_t v) { _returned_bytes = v; }
   )
 };
 
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/memory/binaryTreeDictionary.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/memory/binaryTreeDictionary.cpp	Fri May 04 14:10:30 2012 -0700
@@ -0,0 +1,1343 @@
+/*
+ * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "gc_implementation/shared/allocationStats.hpp"
+#include "memory/binaryTreeDictionary.hpp"
+#include "runtime/globals.hpp"
+#include "utilities/ostream.hpp"
+#ifndef SERIALGC
+#include "gc_implementation/shared/spaceDecorator.hpp"
+#include "gc_implementation/concurrentMarkSweep/freeChunk.hpp"
+#endif // SERIALGC
+
+////////////////////////////////////////////////////////////////////////////////
+// A binary tree based search structure for free blocks.
+// This is currently used in the Concurrent Mark&Sweep implementation.
+////////////////////////////////////////////////////////////////////////////////
+
+template <class Chunk>
+TreeChunk<Chunk>* TreeChunk<Chunk>::as_TreeChunk(Chunk* fc) {
+  // Do some assertion checking here.
+  return (TreeChunk<Chunk>*) fc;
+}
+
+template <class Chunk>
+void TreeChunk<Chunk>::verify_tree_chunk_list() const {
+  TreeChunk<Chunk>* nextTC = (TreeChunk<Chunk>*)next();
+  if (prev() != NULL) { // interior list node shouldn'r have tree fields
+    guarantee(embedded_list()->parent() == NULL && embedded_list()->left() == NULL &&
+              embedded_list()->right()  == NULL, "should be clear");
+  }
+  if (nextTC != NULL) {
+    guarantee(as_TreeChunk(nextTC->prev()) == this, "broken chain");
+    guarantee(nextTC->size() == size(), "wrong size");
+    nextTC->verify_tree_chunk_list();
+  }
+}
+
+
+template <class Chunk>
+TreeList<Chunk>* TreeList<Chunk>::as_TreeList(TreeChunk<Chunk>* tc) {
+  // This first free chunk in the list will be the tree list.
+  assert(tc->size() >= BinaryTreeDictionary<Chunk>::min_tree_chunk_size, "Chunk is too small for a TreeChunk");
+  TreeList<Chunk>* tl = tc->embedded_list();
+  tc->set_list(tl);
+#ifdef ASSERT
+  tl->set_protecting_lock(NULL);
+#endif
+  tl->set_hint(0);
+  tl->set_size(tc->size());
+  tl->link_head(tc);
+  tl->link_tail(tc);
+  tl->set_count(1);
+  tl->init_statistics(true /* split_birth */);
+  tl->set_parent(NULL);
+  tl->set_left(NULL);
+  tl->set_right(NULL);
+  return tl;
+}
+
+template <class Chunk>
+TreeList<Chunk>* TreeList<Chunk>::as_TreeList(HeapWord* addr, size_t size) {
+  TreeChunk<Chunk>* tc = (TreeChunk<Chunk>*) addr;
+  assert(size >= BinaryTreeDictionary<Chunk>::min_tree_chunk_size, "Chunk is too small for a TreeChunk");
+  // The space in the heap will have been mangled initially but
+  // is not remangled when a free chunk is returned to the free list
+  // (since it is used to maintain the chunk on the free list).
+  assert((ZapUnusedHeapArea &&
+          SpaceMangler::is_mangled((HeapWord*) tc->size_addr()) &&
+          SpaceMangler::is_mangled((HeapWord*) tc->prev_addr()) &&
+          SpaceMangler::is_mangled((HeapWord*) tc->next_addr())) ||
+          (tc->size() == 0 && tc->prev() == NULL && tc->next() == NULL),
+    "Space should be clear or mangled");
+  tc->set_size(size);
+  tc->link_prev(NULL);
+  tc->link_next(NULL);
+  TreeList<Chunk>* tl = TreeList<Chunk>::as_TreeList(tc);
+  return tl;
+}
+
+template <class Chunk>
+TreeList<Chunk>* TreeList<Chunk>::remove_chunk_replace_if_needed(TreeChunk<Chunk>* tc) {
+
+  TreeList<Chunk>* retTL = this;
+  Chunk* list = head();
+  assert(!list || list != list->next(), "Chunk on list twice");
+  assert(tc != NULL, "Chunk being removed is NULL");
+  assert(parent() == NULL || this == parent()->left() ||
+    this == parent()->right(), "list is inconsistent");
+  assert(tc->is_free(), "Header is not marked correctly");
+  assert(head() == NULL || head()->prev() == NULL, "list invariant");
+  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
+
+  Chunk* prevFC = tc->prev();
+  TreeChunk<Chunk>* nextTC = TreeChunk<Chunk>::as_TreeChunk(tc->next());
+  assert(list != NULL, "should have at least the target chunk");
+
+  // Is this the first item on the list?
+  if (tc == list) {
+    // The "getChunk..." functions for a TreeList<Chunk> will not return the
+    // first chunk in the list unless it is the last chunk in the list
+    // because the first chunk is also acting as the tree node.
+    // When coalescing happens, however, the first chunk in the a tree
+    // list can be the start of a free range.  Free ranges are removed
+    // from the free lists so that they are not available to be
+    // allocated when the sweeper yields (giving up the free list lock)
+    // to allow mutator activity.  If this chunk is the first in the
+    // list and is not the last in the list, do the work to copy the
+    // TreeList<Chunk> from the first chunk to the next chunk and update all
+    // the TreeList<Chunk> pointers in the chunks in the list.
+    if (nextTC == NULL) {
+      assert(prevFC == NULL, "Not last chunk in the list");
+      set_tail(NULL);
+      set_head(NULL);
+    } else {
+      // copy embedded list.
+      nextTC->set_embedded_list(tc->embedded_list());
+      retTL = nextTC->embedded_list();
+      // Fix the pointer to the list in each chunk in the list.
+      // This can be slow for a long list.  Consider having
+      // an option that does not allow the first chunk on the
+      // list to be coalesced.
+      for (TreeChunk<Chunk>* curTC = nextTC; curTC != NULL;
+          curTC = TreeChunk<Chunk>::as_TreeChunk(curTC->next())) {
+        curTC->set_list(retTL);
+      }
+      // Fix the parent to point to the new TreeList<Chunk>.
+      if (retTL->parent() != NULL) {
+        if (this == retTL->parent()->left()) {
+          retTL->parent()->set_left(retTL);
+        } else {
+          assert(this == retTL->parent()->right(), "Parent is incorrect");
+          retTL->parent()->set_right(retTL);
+        }
+      }
+      // Fix the children's parent pointers to point to the
+      // new list.
+      assert(right() == retTL->right(), "Should have been copied");
+      if (retTL->right() != NULL) {
+        retTL->right()->set_parent(retTL);
+      }
+      assert(left() == retTL->left(), "Should have been copied");
+      if (retTL->left() != NULL) {
+        retTL->left()->set_parent(retTL);
+      }
+      retTL->link_head(nextTC);
+      assert(nextTC->is_free(), "Should be a free chunk");
+    }
+  } else {
+    if (nextTC == NULL) {
+      // Removing chunk at tail of list
+      link_tail(prevFC);
+    }
+    // Chunk is interior to the list
+    prevFC->link_after(nextTC);
+  }
+
+  // Below this point the embeded TreeList<Chunk> being used for the
+  // tree node may have changed. Don't use "this"
+  // TreeList<Chunk>*.
+  // chunk should still be a free chunk (bit set in _prev)
+  assert(!retTL->head() || retTL->size() == retTL->head()->size(),
+    "Wrong sized chunk in list");
+  debug_only(
+    tc->link_prev(NULL);
+    tc->link_next(NULL);
+    tc->set_list(NULL);
+    bool prev_found = false;
+    bool next_found = false;
+    for (Chunk* curFC = retTL->head();
+         curFC != NULL; curFC = curFC->next()) {
+      assert(curFC != tc, "Chunk is still in list");
+      if (curFC == prevFC) {
+        prev_found = true;
+      }
+      if (curFC == nextTC) {
+        next_found = true;
+      }
+    }
+    assert(prevFC == NULL || prev_found, "Chunk was lost from list");
+    assert(nextTC == NULL || next_found, "Chunk was lost from list");
+    assert(retTL->parent() == NULL ||
+           retTL == retTL->parent()->left() ||
+           retTL == retTL->parent()->right(),
+           "list is inconsistent");
+  )
+  retTL->decrement_count();
+
+  assert(tc->is_free(), "Should still be a free chunk");
+  assert(retTL->head() == NULL || retTL->head()->prev() == NULL,
+    "list invariant");
+  assert(retTL->tail() == NULL || retTL->tail()->next() == NULL,
+    "list invariant");
+  return retTL;
+}
+
+template <class Chunk>
+void TreeList<Chunk>::return_chunk_at_tail(TreeChunk<Chunk>* chunk) {
+  assert(chunk != NULL, "returning NULL chunk");
+  assert(chunk->list() == this, "list should be set for chunk");
+  assert(tail() != NULL, "The tree list is embedded in the first chunk");
+  // which means that the list can never be empty.
+  assert(!verify_chunk_in_free_list(chunk), "Double entry");
+  assert(head() == NULL || head()->prev() == NULL, "list invariant");
+  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
+
+  Chunk* fc = tail();
+  fc->link_after(chunk);
+  link_tail(chunk);
+
+  assert(!tail() || size() == tail()->size(), "Wrong sized chunk in list");
+  FreeList<Chunk>::increment_count();
+  debug_only(increment_returned_bytes_by(chunk->size()*sizeof(HeapWord));)
+  assert(head() == NULL || head()->prev() == NULL, "list invariant");
+  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
+}
+
+// Add this chunk at the head of the list.  "At the head of the list"
+// is defined to be after the chunk pointer to by head().  This is
+// because the TreeList<Chunk> is embedded in the first TreeChunk<Chunk> in the
+// list.  See the definition of TreeChunk<Chunk>.
+template <class Chunk>
+void TreeList<Chunk>::return_chunk_at_head(TreeChunk<Chunk>* chunk) {
+  assert(chunk->list() == this, "list should be set for chunk");
+  assert(head() != NULL, "The tree list is embedded in the first chunk");
+  assert(chunk != NULL, "returning NULL chunk");
+  assert(!verify_chunk_in_free_list(chunk), "Double entry");
+  assert(head() == NULL || head()->prev() == NULL, "list invariant");
+  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
+
+  Chunk* fc = head()->next();
+  if (fc != NULL) {
+    chunk->link_after(fc);
+  } else {
+    assert(tail() == NULL, "List is inconsistent");
+    link_tail(chunk);
+  }
+  head()->link_after(chunk);
+  assert(!head() || size() == head()->size(), "Wrong sized chunk in list");
+  FreeList<Chunk>::increment_count();
+  debug_only(increment_returned_bytes_by(chunk->size()*sizeof(HeapWord));)
+  assert(head() == NULL || head()->prev() == NULL, "list invariant");
+  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
+}
+
+template <class Chunk>
+TreeChunk<Chunk>* TreeList<Chunk>::head_as_TreeChunk() {
+  assert(head() == NULL || TreeChunk<Chunk>::as_TreeChunk(head())->list() == this,
+    "Wrong type of chunk?");
+  return TreeChunk<Chunk>::as_TreeChunk(head());
+}
+
+template <class Chunk>
+TreeChunk<Chunk>* TreeList<Chunk>::first_available() {
+  assert(head() != NULL, "The head of the list cannot be NULL");
+  Chunk* fc = head()->next();
+  TreeChunk<Chunk>* retTC;
+  if (fc == NULL) {
+    retTC = head_as_TreeChunk();
+  } else {
+    retTC = TreeChunk<Chunk>::as_TreeChunk(fc);
+  }
+  assert(retTC->list() == this, "Wrong type of chunk.");
+  return retTC;
+}
+
+// Returns the block with the largest heap address amongst
+// those in the list for this size; potentially slow and expensive,
+// use with caution!
+template <class Chunk>
+TreeChunk<Chunk>* TreeList<Chunk>::largest_address() {
+  assert(head() != NULL, "The head of the list cannot be NULL");
+  Chunk* fc = head()->next();
+  TreeChunk<Chunk>* retTC;
+  if (fc == NULL) {
+    retTC = head_as_TreeChunk();
+  } else {
+    // walk down the list and return the one with the highest
+    // heap address among chunks of this size.
+    Chunk* last = fc;
+    while (fc->next() != NULL) {
+      if ((HeapWord*)last < (HeapWord*)fc) {
+        last = fc;
+      }
+      fc = fc->next();
+    }
+    retTC = TreeChunk<Chunk>::as_TreeChunk(last);
+  }
+  assert(retTC->list() == this, "Wrong type of chunk.");
+  return retTC;
+}
+
+template <class Chunk>
+BinaryTreeDictionary<Chunk>::BinaryTreeDictionary(bool adaptive_freelists, bool splay) :
+  _splay(splay), _adaptive_freelists(adaptive_freelists),
+  _total_size(0), _total_free_blocks(0), _root(0) {}
+
+template <class Chunk>
+BinaryTreeDictionary<Chunk>::BinaryTreeDictionary(MemRegion mr,
+                                           bool adaptive_freelists,
+                                           bool splay):
+  _adaptive_freelists(adaptive_freelists), _splay(splay)
+{
+  assert(mr.word_size() >= BinaryTreeDictionary<Chunk>::min_tree_chunk_size, "minimum chunk size");
+
+  reset(mr);
+  assert(root()->left() == NULL, "reset check failed");
+  assert(root()->right() == NULL, "reset check failed");
+  assert(root()->head()->next() == NULL, "reset check failed");
+  assert(root()->head()->prev() == NULL, "reset check failed");
+  assert(total_size() == root()->size(), "reset check failed");
+  assert(total_free_blocks() == 1, "reset check failed");
+}
+
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::inc_total_size(size_t inc) {
+  _total_size = _total_size + inc;
+}
+
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::dec_total_size(size_t dec) {
+  _total_size = _total_size - dec;
+}
+
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::reset(MemRegion mr) {
+  assert(mr.word_size() >= BinaryTreeDictionary<Chunk>::min_tree_chunk_size, "minimum chunk size");
+  set_root(TreeList<Chunk>::as_TreeList(mr.start(), mr.word_size()));
+  set_total_size(mr.word_size());
+  set_total_free_blocks(1);
+}
+
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::reset(HeapWord* addr, size_t byte_size) {
+  MemRegion mr(addr, heap_word_size(byte_size));
+  reset(mr);
+}
+
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::reset() {
+  set_root(NULL);
+  set_total_size(0);
+  set_total_free_blocks(0);
+}
+
+// Get a free block of size at least size from tree, or NULL.
+// If a splay step is requested, the removal algorithm (only) incorporates
+// a splay step as follows:
+// . the search proceeds down the tree looking for a possible
+//   match. At the (closest) matching location, an appropriate splay step is applied
+//   (zig, zig-zig or zig-zag). A chunk of the appropriate size is then returned
+//   if available, and if it's the last chunk, the node is deleted. A deteleted
+//   node is replaced in place by its tree successor.
+template <class Chunk>
+TreeChunk<Chunk>*
+BinaryTreeDictionary<Chunk>::get_chunk_from_tree(size_t size, enum FreeBlockDictionary<Chunk>::Dither dither, bool splay)
+{
+  TreeList<Chunk> *curTL, *prevTL;
+  TreeChunk<Chunk>* retTC = NULL;
+  assert(size >= BinaryTreeDictionary<Chunk>::min_tree_chunk_size, "minimum chunk size");
+  if (FLSVerifyDictionary) {
+    verify_tree();
+  }
+  // starting at the root, work downwards trying to find match.
+  // Remember the last node of size too great or too small.
+  for (prevTL = curTL = root(); curTL != NULL;) {
+    if (curTL->size() == size) {        // exact match
+      break;
+    }
+    prevTL = curTL;
+    if (curTL->size() < size) {        // proceed to right sub-tree
+      curTL = curTL->right();
+    } else {                           // proceed to left sub-tree
+      assert(curTL->size() > size, "size inconsistency");
+      curTL = curTL->left();
+    }
+  }
+  if (curTL == NULL) { // couldn't find exact match
+
+    if (dither == FreeBlockDictionary<Chunk>::exactly) return NULL;
+
+    // try and find the next larger size by walking back up the search path
+    for (curTL = prevTL; curTL != NULL;) {
+      if (curTL->size() >= size) break;
+      else curTL = curTL->parent();
+    }
+    assert(curTL == NULL || curTL->count() > 0,
+      "An empty list should not be in the tree");
+  }
+  if (curTL != NULL) {
+    assert(curTL->size() >= size, "size inconsistency");
+    if (adaptive_freelists()) {
+
+      // A candidate chunk has been found.  If it is already under
+      // populated, get a chunk associated with the hint for this
+      // chunk.
+      if (curTL->surplus() <= 0) {
+        /* Use the hint to find a size with a surplus, and reset the hint. */
+        TreeList<Chunk>* hintTL = curTL;
+        while (hintTL->hint() != 0) {
+          assert(hintTL->hint() == 0 || hintTL->hint() > hintTL->size(),
+            "hint points in the wrong direction");
+          hintTL = find_list(hintTL->hint());
+          assert(curTL != hintTL, "Infinite loop");
+          if (hintTL == NULL ||
+              hintTL == curTL /* Should not happen but protect against it */ ) {
+            // No useful hint.  Set the hint to NULL and go on.
+            curTL->set_hint(0);
+            break;
+          }
+          assert(hintTL->size() > size, "hint is inconsistent");
+          if (hintTL->surplus() > 0) {
+            // The hint led to a list that has a surplus.  Use it.
+            // Set the hint for the candidate to an overpopulated
+            // size.
+            curTL->set_hint(hintTL->size());
+            // Change the candidate.
+            curTL = hintTL;
+            break;
+          }
+          // The evm code reset the hint of the candidate as
+          // at an interim point.  Why?  Seems like this leaves
+          // the hint pointing to a list that didn't work.
+          // curTL->set_hint(hintTL->size());
+        }
+      }
+    }
+    // don't waste time splaying if chunk's singleton
+    if (splay && curTL->head()->next() != NULL) {
+      semi_splay_step(curTL);
+    }
+    retTC = curTL->first_available();
+    assert((retTC != NULL) && (curTL->count() > 0),
+      "A list in the binary tree should not be NULL");
+    assert(retTC->size() >= size,
+      "A chunk of the wrong size was found");
+    remove_chunk_from_tree(retTC);
+    assert(retTC->is_free(), "Header is not marked correctly");
+  }
+
+  if (FLSVerifyDictionary) {
+    verify();
+  }
+  return retTC;
+}
+
+template <class Chunk>
+TreeList<Chunk>* BinaryTreeDictionary<Chunk>::find_list(size_t size) const {
+  TreeList<Chunk>* curTL;
+  for (curTL = root(); curTL != NULL;) {
+    if (curTL->size() == size) {        // exact match
+      break;
+    }
+
+    if (curTL->size() < size) {        // proceed to right sub-tree
+      curTL = curTL->right();
+    } else {                           // proceed to left sub-tree
+      assert(curTL->size() > size, "size inconsistency");
+      curTL = curTL->left();
+    }
+  }
+  return curTL;
+}
+
+
+template <class Chunk>
+bool BinaryTreeDictionary<Chunk>::verify_chunk_in_free_list(Chunk* tc) const {
+  size_t size = tc->size();
+  TreeList<Chunk>* tl = find_list(size);
+  if (tl == NULL) {
+    return false;
+  } else {
+    return tl->verify_chunk_in_free_list(tc);
+  }
+}
+
+template <class Chunk>
+Chunk* BinaryTreeDictionary<Chunk>::find_largest_dict() const {
+  TreeList<Chunk> *curTL = root();
+  if (curTL != NULL) {
+    while(curTL->right() != NULL) curTL = curTL->right();
+    return curTL->largest_address();
+  } else {
+    return NULL;
+  }
+}
+
+// Remove the current chunk from the tree.  If it is not the last
+// chunk in a list on a tree node, just unlink it.
+// If it is the last chunk in the list (the next link is NULL),
+// remove the node and repair the tree.
+template <class Chunk>
+TreeChunk<Chunk>*
+BinaryTreeDictionary<Chunk>::remove_chunk_from_tree(TreeChunk<Chunk>* tc) {
+  assert(tc != NULL, "Should not call with a NULL chunk");
+  assert(tc->is_free(), "Header is not marked correctly");
+
+  TreeList<Chunk> *newTL, *parentTL;
+  TreeChunk<Chunk>* retTC;
+  TreeList<Chunk>* tl = tc->list();
+  debug_only(
+    bool removing_only_chunk = false;
+    if (tl == _root) {
+      if ((_root->left() == NULL) && (_root->right() == NULL)) {
+        if (_root->count() == 1) {
+          assert(_root->head() == tc, "Should only be this one chunk");
+          removing_only_chunk = true;
+        }
+      }
+    }
+  )
+  assert(tl != NULL, "List should be set");
+  assert(tl->parent() == NULL || tl == tl->parent()->left() ||
+         tl == tl->parent()->right(), "list is inconsistent");
+
+  bool complicated_splice = false;
+
+  retTC = tc;
+  // Removing this chunk can have the side effect of changing the node
+  // (TreeList<Chunk>*) in the tree.  If the node is the root, update it.
+  TreeList<Chunk>* replacementTL = tl->remove_chunk_replace_if_needed(tc);
+  assert(tc->is_free(), "Chunk should still be free");
+  assert(replacementTL->parent() == NULL ||
+         replacementTL == replacementTL->parent()->left() ||
+         replacementTL == replacementTL->parent()->right(),
+         "list is inconsistent");
+  if (tl == root()) {
+    assert(replacementTL->parent() == NULL, "Incorrectly replacing root");
+    set_root(replacementTL);
+  }
+  debug_only(
+    if (tl != replacementTL) {
+      assert(replacementTL->head() != NULL,
+        "If the tree list was replaced, it should not be a NULL list");
+      TreeList<Chunk>* rhl = replacementTL->head_as_TreeChunk()->list();
+      TreeList<Chunk>* rtl = TreeChunk<Chunk>::as_TreeChunk(replacementTL->tail())->list();
+      assert(rhl == replacementTL, "Broken head");
+      assert(rtl == replacementTL, "Broken tail");
+      assert(replacementTL->size() == tc->size(),  "Broken size");
+    }
+  )
+
+  // Does the tree need to be repaired?
+  if (replacementTL->count() == 0) {
+    assert(replacementTL->head() == NULL &&
+           replacementTL->tail() == NULL, "list count is incorrect");
+    // Find the replacement node for the (soon to be empty) node being removed.
+    // if we have a single (or no) child, splice child in our stead
+    if (replacementTL->left() == NULL) {
+      // left is NULL so pick right.  right may also be NULL.
+      newTL = replacementTL->right();
+      debug_only(replacementTL->clear_right();)
+    } else if (replacementTL->right() == NULL) {
+      // right is NULL
+      newTL = replacementTL->left();
+      debug_only(replacementTL->clearLeft();)
+    } else {  // we have both children, so, by patriarchal convention,
+              // my replacement is least node in right sub-tree
+      complicated_splice = true;
+      newTL = remove_tree_minimum(replacementTL->right());
+      assert(newTL != NULL && newTL->left() == NULL &&
+             newTL->right() == NULL, "sub-tree minimum exists");
+    }
+    // newTL is the replacement for the (soon to be empty) node.
+    // newTL may be NULL.
+    // should verify; we just cleanly excised our replacement
+    if (FLSVerifyDictionary) {
+      verify_tree();
+    }
+    // first make newTL my parent's child
+    if ((parentTL = replacementTL->parent()) == NULL) {
+      // newTL should be root
+      assert(tl == root(), "Incorrectly replacing root");
+      set_root(newTL);
+      if (newTL != NULL) {
+        newTL->clear_parent();
+      }
+    } else if (parentTL->right() == replacementTL) {
+      // replacementTL is a right child
+      parentTL->set_right(newTL);
+    } else {                                // replacementTL is a left child
+      assert(parentTL->left() == replacementTL, "should be left child");
+      parentTL->set_left(newTL);
+    }
+    debug_only(replacementTL->clear_parent();)
+    if (complicated_splice) {  // we need newTL to get replacementTL's
+                              // two children
+      assert(newTL != NULL &&
+             newTL->left() == NULL && newTL->right() == NULL,
+            "newTL should not have encumbrances from the past");
+      // we'd like to assert as below:
+      // assert(replacementTL->left() != NULL && replacementTL->right() != NULL,
+      //       "else !complicated_splice");
+      // ... however, the above assertion is too strong because we aren't
+      // guaranteed that replacementTL->right() is still NULL.
+      // Recall that we removed
+      // the right sub-tree minimum from replacementTL.
+      // That may well have been its right
+      // child! So we'll just assert half of the above:
+      assert(replacementTL->left() != NULL, "else !complicated_splice");
+      newTL->set_left(replacementTL->left());
+      newTL->set_right(replacementTL->right());
+      debug_only(
+        replacementTL->clear_right();
+        replacementTL->clearLeft();
+      )
+    }
+    assert(replacementTL->right() == NULL &&
+           replacementTL->left() == NULL &&
+           replacementTL->parent() == NULL,
+        "delete without encumbrances");
+  }
+
+  assert(total_size() >= retTC->size(), "Incorrect total size");
+  dec_total_size(retTC->size());     // size book-keeping
+  assert(total_free_blocks() > 0, "Incorrect total count");
+  set_total_free_blocks(total_free_blocks() - 1);
+
+  assert(retTC != NULL, "null chunk?");
+  assert(retTC->prev() == NULL && retTC->next() == NULL,
+         "should return without encumbrances");
+  if (FLSVerifyDictionary) {
+    verify_tree();
+  }
+  assert(!removing_only_chunk || _root == NULL, "root should be NULL");
+  return TreeChunk<Chunk>::as_TreeChunk(retTC);
+}
+
+// Remove the leftmost node (lm) in the tree and return it.
+// If lm has a right child, link it to the left node of
+// the parent of lm.
+template <class Chunk>
+TreeList<Chunk>* BinaryTreeDictionary<Chunk>::remove_tree_minimum(TreeList<Chunk>* tl) {
+  assert(tl != NULL && tl->parent() != NULL, "really need a proper sub-tree");
+  // locate the subtree minimum by walking down left branches
+  TreeList<Chunk>* curTL = tl;
+  for (; curTL->left() != NULL; curTL = curTL->left());
+  // obviously curTL now has at most one child, a right child
+  if (curTL != root()) {  // Should this test just be removed?
+    TreeList<Chunk>* parentTL = curTL->parent();
+    if (parentTL->left() == curTL) { // curTL is a left child
+      parentTL->set_left(curTL->right());
+    } else {
+      // If the list tl has no left child, then curTL may be
+      // the right child of parentTL.
+      assert(parentTL->right() == curTL, "should be a right child");
+      parentTL->set_right(curTL->right());
+    }
+  } else {
+    // The only use of this method would not pass the root of the
+    // tree (as indicated by the assertion above that the tree list
+    // has a parent) but the specification does not explicitly exclude the
+    // passing of the root so accomodate it.
+    set_root(NULL);
+  }
+  debug_only(
+    curTL->clear_parent();  // Test if this needs to be cleared
+    curTL->clear_right();    // recall, above, left child is already null
+  )
+  // we just excised a (non-root) node, we should still verify all tree invariants
+  if (FLSVerifyDictionary) {
+    verify_tree();
+  }
+  return curTL;
+}
+
+// Based on a simplification of the algorithm by Sleator and Tarjan (JACM 1985).
+// The simplifications are the following:
+// . we splay only when we delete (not when we insert)
+// . we apply a single spay step per deletion/access
+// By doing such partial splaying, we reduce the amount of restructuring,
+// while getting a reasonably efficient search tree (we think).
+// [Measurements will be needed to (in)validate this expectation.]
+
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::semi_splay_step(TreeList<Chunk>* tc) {
+  // apply a semi-splay step at the given node:
+  // . if root, norting needs to be done
+  // . if child of root, splay once
+  // . else zig-zig or sig-zag depending on path from grandparent
+  if (root() == tc) return;
+  warning("*** Splaying not yet implemented; "
+          "tree operations may be inefficient ***");
+}
+
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::insert_chunk_in_tree(Chunk* fc) {
+  TreeList<Chunk> *curTL, *prevTL;
+  size_t size = fc->size();
+
+  assert(size >= BinaryTreeDictionary<Chunk>::min_tree_chunk_size, "too small to be a TreeList<Chunk>");
+  if (FLSVerifyDictionary) {
+    verify_tree();
+  }
+
+  fc->clear_next();
+  fc->link_prev(NULL);
+
+  // work down from the _root, looking for insertion point
+  for (prevTL = curTL = root(); curTL != NULL;) {
+    if (curTL->size() == size)  // exact match
+      break;
+    prevTL = curTL;
+    if (curTL->size() > size) { // follow left branch
+      curTL = curTL->left();
+    } else {                    // follow right branch
+      assert(curTL->size() < size, "size inconsistency");
+      curTL = curTL->right();
+    }
+  }
+  TreeChunk<Chunk>* tc = TreeChunk<Chunk>::as_TreeChunk(fc);
+  // This chunk is being returned to the binary tree.  Its embedded
+  // TreeList<Chunk> should be unused at this point.
+  tc->initialize();
+  if (curTL != NULL) {          // exact match
+    tc->set_list(curTL);
+    curTL->return_chunk_at_tail(tc);
+  } else {                     // need a new node in tree
+    tc->clear_next();
+    tc->link_prev(NULL);
+    TreeList<Chunk>* newTL = TreeList<Chunk>::as_TreeList(tc);
+    assert(((TreeChunk<Chunk>*)tc)->list() == newTL,
+      "List was not initialized correctly");
+    if (prevTL == NULL) {      // we are the only tree node
+      assert(root() == NULL, "control point invariant");
+      set_root(newTL);
+    } else {                   // insert under prevTL ...
+      if (prevTL->size() < size) {   // am right child
+        assert(prevTL->right() == NULL, "control point invariant");
+        prevTL->set_right(newTL);
+      } else {                       // am left child
+        assert(prevTL->size() > size && prevTL->left() == NULL, "cpt pt inv");
+        prevTL->set_left(newTL);
+      }
+    }
+  }
+  assert(tc->list() != NULL, "Tree list should be set");
+
+  inc_total_size(size);
+  // Method 'total_size_in_tree' walks through the every block in the
+  // tree, so it can cause significant performance loss if there are
+  // many blocks in the tree
+  assert(!FLSVerifyDictionary || total_size_in_tree(root()) == total_size(), "_total_size inconsistency");
+  set_total_free_blocks(total_free_blocks() + 1);
+  if (FLSVerifyDictionary) {
+    verify_tree();
+  }
+}
+
+template <class Chunk>
+size_t BinaryTreeDictionary<Chunk>::max_chunk_size() const {
+  FreeBlockDictionary<Chunk>::verify_par_locked();
+  TreeList<Chunk>* tc = root();
+  if (tc == NULL) return 0;
+  for (; tc->right() != NULL; tc = tc->right());
+  return tc->size();
+}
+
+template <class Chunk>
+size_t BinaryTreeDictionary<Chunk>::total_list_length(TreeList<Chunk>* tl) const {
+  size_t res;
+  res = tl->count();
+#ifdef ASSERT
+  size_t cnt;
+  Chunk* tc = tl->head();
+  for (cnt = 0; tc != NULL; tc = tc->next(), cnt++);
+  assert(res == cnt, "The count is not being maintained correctly");
+#endif
+  return res;
+}
+
+template <class Chunk>
+size_t BinaryTreeDictionary<Chunk>::total_size_in_tree(TreeList<Chunk>* tl) const {
+  if (tl == NULL)
+    return 0;
+  return (tl->size() * total_list_length(tl)) +
+         total_size_in_tree(tl->left())    +
+         total_size_in_tree(tl->right());
+}
+
+template <class Chunk>
+double BinaryTreeDictionary<Chunk>::sum_of_squared_block_sizes(TreeList<Chunk>* const tl) const {
+  if (tl == NULL) {
+    return 0.0;
+  }
+  double size = (double)(tl->size());
+  double curr = size * size * total_list_length(tl);
+  curr += sum_of_squared_block_sizes(tl->left());
+  curr += sum_of_squared_block_sizes(tl->right());
+  return curr;
+}
+
+template <class Chunk>
+size_t BinaryTreeDictionary<Chunk>::total_free_blocks_in_tree(TreeList<Chunk>* tl) const {
+  if (tl == NULL)
+    return 0;
+  return total_list_length(tl) +
+         total_free_blocks_in_tree(tl->left()) +
+         total_free_blocks_in_tree(tl->right());
+}
+
+template <class Chunk>
+size_t BinaryTreeDictionary<Chunk>::num_free_blocks() const {
+  assert(total_free_blocks_in_tree(root()) == total_free_blocks(),
+         "_total_free_blocks inconsistency");
+  return total_free_blocks();
+}
+
+template <class Chunk>
+size_t BinaryTreeDictionary<Chunk>::tree_height_helper(TreeList<Chunk>* tl) const {
+  if (tl == NULL)
+    return 0;
+  return 1 + MAX2(tree_height_helper(tl->left()),
+                  tree_height_helper(tl->right()));
+}
+
+template <class Chunk>
+size_t BinaryTreeDictionary<Chunk>::treeHeight() const {
+  return tree_height_helper(root());
+}
+
+template <class Chunk>
+size_t BinaryTreeDictionary<Chunk>::total_nodes_helper(TreeList<Chunk>* tl) const {
+  if (tl == NULL) {
+    return 0;
+  }
+  return 1 + total_nodes_helper(tl->left()) +
+    total_nodes_helper(tl->right());
+}
+
+template <class Chunk>
+size_t BinaryTreeDictionary<Chunk>::total_nodes_in_tree(TreeList<Chunk>* tl) const {
+  return total_nodes_helper(root());
+}
+
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::dict_census_udpate(size_t size, bool split, bool birth){
+  TreeList<Chunk>* nd = find_list(size);
+  if (nd) {
+    if (split) {
+      if (birth) {
+        nd->increment_split_births();
+        nd->increment_surplus();
+      }  else {
+        nd->increment_split_deaths();
+        nd->decrement_surplus();
+      }
+    } else {
+      if (birth) {
+        nd->increment_coal_births();
+        nd->increment_surplus();
+      } else {
+        nd->increment_coal_deaths();
+        nd->decrement_surplus();
+      }
+    }
+  }
+  // A list for this size may not be found (nd == 0) if
+  //   This is a death where the appropriate list is now
+  //     empty and has been removed from the list.
+  //   This is a birth associated with a LinAB.  The chunk
+  //     for the LinAB is not in the dictionary.
+}
+
+template <class Chunk>
+bool BinaryTreeDictionary<Chunk>::coal_dict_over_populated(size_t size) {
+  if (FLSAlwaysCoalesceLarge) return true;
+
+  TreeList<Chunk>* list_of_size = find_list(size);
+  // None of requested size implies overpopulated.
+  return list_of_size == NULL || list_of_size->coal_desired() <= 0 ||
+         list_of_size->count() > list_of_size->coal_desired();
+}
+
+// Closures for walking the binary tree.
+//   do_list() walks the free list in a node applying the closure
+//     to each free chunk in the list
+//   do_tree() walks the nodes in the binary tree applying do_list()
+//     to each list at each node.
+
+template <class Chunk>
+class TreeCensusClosure : public StackObj {
+ protected:
+  virtual void do_list(FreeList<Chunk>* fl) = 0;
+ public:
+  virtual void do_tree(TreeList<Chunk>* tl) = 0;
+};
+
+template <class Chunk>
+class AscendTreeCensusClosure : public TreeCensusClosure<Chunk> {
+ public:
+  void do_tree(TreeList<Chunk>* tl) {
+    if (tl != NULL) {
+      do_tree(tl->left());
+      do_list(tl);
+      do_tree(tl->right());
+    }
+  }
+};
+
+template <class Chunk>
+class DescendTreeCensusClosure : public TreeCensusClosure<Chunk> {
+ public:
+  void do_tree(TreeList<Chunk>* tl) {
+    if (tl != NULL) {
+      do_tree(tl->right());
+      do_list(tl);
+      do_tree(tl->left());
+    }
+  }
+};
+
+// For each list in the tree, calculate the desired, desired
+// coalesce, count before sweep, and surplus before sweep.
+template <class Chunk>
+class BeginSweepClosure : public AscendTreeCensusClosure<Chunk> {
+  double _percentage;
+  float _inter_sweep_current;
+  float _inter_sweep_estimate;
+  float _intra_sweep_estimate;
+
+ public:
+  BeginSweepClosure(double p, float inter_sweep_current,
+                              float inter_sweep_estimate,
+                              float intra_sweep_estimate) :
+   _percentage(p),
+   _inter_sweep_current(inter_sweep_current),
+   _inter_sweep_estimate(inter_sweep_estimate),
+   _intra_sweep_estimate(intra_sweep_estimate) { }
+
+  void do_list(FreeList<Chunk>* fl) {
+    double coalSurplusPercent = _percentage;
+    fl->compute_desired(_inter_sweep_current, _inter_sweep_estimate, _intra_sweep_estimate);
+    fl->set_coal_desired((ssize_t)((double)fl->desired() * coalSurplusPercent));
+    fl->set_before_sweep(fl->count());
+    fl->set_bfr_surp(fl->surplus());
+  }
+};
+
+// Used to search the tree until a condition is met.
+// Similar to TreeCensusClosure but searches the
+// tree and returns promptly when found.
+
+template <class Chunk>
+class TreeSearchClosure : public StackObj {
+ protected:
+  virtual bool do_list(FreeList<Chunk>* fl) = 0;
+ public:
+  virtual bool do_tree(TreeList<Chunk>* tl) = 0;
+};
+
+#if 0 //  Don't need this yet but here for symmetry.
+template <class Chunk>
+class AscendTreeSearchClosure : public TreeSearchClosure {
+ public:
+  bool do_tree(TreeList<Chunk>* tl) {
+    if (tl != NULL) {
+      if (do_tree(tl->left())) return true;
+      if (do_list(tl)) return true;
+      if (do_tree(tl->right())) return true;
+    }
+    return false;
+  }
+};
+#endif
+
+template <class Chunk>
+class DescendTreeSearchClosure : public TreeSearchClosure<Chunk> {
+ public:
+  bool do_tree(TreeList<Chunk>* tl) {
+    if (tl != NULL) {
+      if (do_tree(tl->right())) return true;
+      if (do_list(tl)) return true;
+      if (do_tree(tl->left())) return true;
+    }
+    return false;
+  }
+};
+
+// Searches the tree for a chunk that ends at the
+// specified address.
+template <class Chunk>
+class EndTreeSearchClosure : public DescendTreeSearchClosure<Chunk> {
+  HeapWord* _target;
+  Chunk* _found;
+
+ public:
+  EndTreeSearchClosure(HeapWord* target) : _target(target), _found(NULL) {}
+  bool do_list(FreeList<Chunk>* fl) {
+    Chunk* item = fl->head();
+    while (item != NULL) {
+      if (item->end() == _target) {
+        _found = item;
+        return true;
+      }
+      item = item->next();
+    }
+    return false;
+  }
+  Chunk* found() { return _found; }
+};
+
+template <class Chunk>
+Chunk* BinaryTreeDictionary<Chunk>::find_chunk_ends_at(HeapWord* target) const {
+  EndTreeSearchClosure<Chunk> etsc(target);
+  bool found_target = etsc.do_tree(root());
+  assert(found_target || etsc.found() == NULL, "Consistency check");
+  assert(!found_target || etsc.found() != NULL, "Consistency check");
+  return etsc.found();
+}
+
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::begin_sweep_dict_census(double coalSurplusPercent,
+  float inter_sweep_current, float inter_sweep_estimate, float intra_sweep_estimate) {
+  BeginSweepClosure<Chunk> bsc(coalSurplusPercent, inter_sweep_current,
+                                            inter_sweep_estimate,
+                                            intra_sweep_estimate);
+  bsc.do_tree(root());
+}
+
+// Closures and methods for calculating total bytes returned to the
+// free lists in the tree.
+#ifndef PRODUCT
+template <class Chunk>
+class InitializeDictReturnedBytesClosure : public AscendTreeCensusClosure<Chunk> {
+   public:
+  void do_list(FreeList<Chunk>* fl) {
+    fl->set_returned_bytes(0);
+  }
+};
+
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::initialize_dict_returned_bytes() {
+  InitializeDictReturnedBytesClosure<Chunk> idrb;
+  idrb.do_tree(root());
+}
+
+template <class Chunk>
+class ReturnedBytesClosure : public AscendTreeCensusClosure<Chunk> {
+  size_t _dict_returned_bytes;
+ public:
+  ReturnedBytesClosure() { _dict_returned_bytes = 0; }
+  void do_list(FreeList<Chunk>* fl) {
+    _dict_returned_bytes += fl->returned_bytes();
+  }
+  size_t dict_returned_bytes() { return _dict_returned_bytes; }
+};
+
+template <class Chunk>
+size_t BinaryTreeDictionary<Chunk>::sum_dict_returned_bytes() {
+  ReturnedBytesClosure<Chunk> rbc;
+  rbc.do_tree(root());
+
+  return rbc.dict_returned_bytes();
+}
+
+// Count the number of entries in the tree.
+template <class Chunk>
+class treeCountClosure : public DescendTreeCensusClosure<Chunk> {
+ public:
+  uint count;
+  treeCountClosure(uint c) { count = c; }
+  void do_list(FreeList<Chunk>* fl) {
+    count++;
+  }
+};
+
+template <class Chunk>
+size_t BinaryTreeDictionary<Chunk>::total_count() {
+  treeCountClosure<Chunk> ctc(0);
+  ctc.do_tree(root());
+  return ctc.count;
+}
+#endif // PRODUCT
+
+// Calculate surpluses for the lists in the tree.
+template <class Chunk>
+class setTreeSurplusClosure : public AscendTreeCensusClosure<Chunk> {
+  double percentage;
+ public:
+  setTreeSurplusClosure(double v) { percentage = v; }
+  void do_list(FreeList<Chunk>* fl) {
+    double splitSurplusPercent = percentage;
+    fl->set_surplus(fl->count() -
+                   (ssize_t)((double)fl->desired() * splitSurplusPercent));
+  }
+};
+
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::set_tree_surplus(double splitSurplusPercent) {
+  setTreeSurplusClosure<Chunk> sts(splitSurplusPercent);
+  sts.do_tree(root());
+}
+
+// Set hints for the lists in the tree.
+template <class Chunk>
+class setTreeHintsClosure : public DescendTreeCensusClosure<Chunk> {
+  size_t hint;
+ public:
+  setTreeHintsClosure(size_t v) { hint = v; }
+  void do_list(FreeList<Chunk>* fl) {
+    fl->set_hint(hint);
+    assert(fl->hint() == 0 || fl->hint() > fl->size(),
+      "Current hint is inconsistent");
+    if (fl->surplus() > 0) {
+      hint = fl->size();
+    }
+  }
+};
+
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::set_tree_hints(void) {
+  setTreeHintsClosure<Chunk> sth(0);
+  sth.do_tree(root());
+}
+
+// Save count before previous sweep and splits and coalesces.
+template <class Chunk>
+class clearTreeCensusClosure : public AscendTreeCensusClosure<Chunk> {
+  void do_list(FreeList<Chunk>* fl) {
+    fl->set_prev_sweep(fl->count());
+    fl->set_coal_births(0);
+    fl->set_coal_deaths(0);
+    fl->set_split_births(0);
+    fl->set_split_deaths(0);
+  }
+};
+
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::clear_tree_census(void) {
+  clearTreeCensusClosure<Chunk> ctc;
+  ctc.do_tree(root());
+}
+
+// Do reporting and post sweep clean up.
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::end_sweep_dict_census(double splitSurplusPercent) {
+  // Does walking the tree 3 times hurt?
+  set_tree_surplus(splitSurplusPercent);
+  set_tree_hints();
+  if (PrintGC && Verbose) {
+    report_statistics();
+  }
+  clear_tree_census();
+}
+
+// Print summary statistics
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::report_statistics() const {
+  FreeBlockDictionary<Chunk>::verify_par_locked();
+  gclog_or_tty->print("Statistics for BinaryTreeDictionary:\n"
+         "------------------------------------\n");
+  size_t total_size = total_chunk_size(debug_only(NULL));
+  size_t    free_blocks = num_free_blocks();
+  gclog_or_tty->print("Total Free Space: %d\n", total_size);
+  gclog_or_tty->print("Max   Chunk Size: %d\n", max_chunk_size());
+  gclog_or_tty->print("Number of Blocks: %d\n", free_blocks);
+  if (free_blocks > 0) {
+    gclog_or_tty->print("Av.  Block  Size: %d\n", total_size/free_blocks);
+  }
+  gclog_or_tty->print("Tree      Height: %d\n", treeHeight());
+}
+
+// Print census information - counts, births, deaths, etc.
+// for each list in the tree.  Also print some summary
+// information.
+template <class Chunk>
+class PrintTreeCensusClosure : public AscendTreeCensusClosure<Chunk> {
+  int _print_line;
+  size_t _total_free;
+  FreeList<Chunk> _total;
+
+ public:
+  PrintTreeCensusClosure() {
+    _print_line = 0;
+    _total_free = 0;
+  }
+  FreeList<Chunk>* total() { return &_total; }
+  size_t total_free() { return _total_free; }
+  void do_list(FreeList<Chunk>* fl) {
+    if (++_print_line >= 40) {
+      FreeList<Chunk>::print_labels_on(gclog_or_tty, "size");
+      _print_line = 0;
+    }
+    fl->print_on(gclog_or_tty);
+    _total_free +=            fl->count()            * fl->size()        ;
+    total()->set_count(      total()->count()       + fl->count()      );
+    total()->set_bfr_surp(    total()->bfr_surp()     + fl->bfr_surp()    );
+    total()->set_surplus(    total()->split_deaths() + fl->surplus()    );
+    total()->set_desired(    total()->desired()     + fl->desired()    );
+    total()->set_prev_sweep(  total()->prev_sweep()   + fl->prev_sweep()  );
+    total()->set_before_sweep(total()->before_sweep() + fl->before_sweep());
+    total()->set_coal_births( total()->coal_births()  + fl->coal_births() );
+    total()->set_coal_deaths( total()->coal_deaths()  + fl->coal_deaths() );
+    total()->set_split_births(total()->split_births() + fl->split_births());
+    total()->set_split_deaths(total()->split_deaths() + fl->split_deaths());
+  }
+};
+
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::print_dict_census(void) const {
+
+  gclog_or_tty->print("\nBinaryTree\n");
+  FreeList<Chunk>::print_labels_on(gclog_or_tty, "size");
+  PrintTreeCensusClosure<Chunk> ptc;
+  ptc.do_tree(root());
+
+  FreeList<Chunk>* total = ptc.total();
+  FreeList<Chunk>::print_labels_on(gclog_or_tty, " ");
+  total->print_on(gclog_or_tty, "TOTAL\t");
+  gclog_or_tty->print(
+              "total_free(words): " SIZE_FORMAT_W(16)
+              " growth: %8.5f  deficit: %8.5f\n",
+              ptc.total_free(),
+              (double)(total->split_births() + total->coal_births()
+                     - total->split_deaths() - total->coal_deaths())
+              /(total->prev_sweep() != 0 ? (double)total->prev_sweep() : 1.0),
+             (double)(total->desired() - total->count())
+             /(total->desired() != 0 ? (double)total->desired() : 1.0));
+}
+
+template <class Chunk>
+class PrintFreeListsClosure : public AscendTreeCensusClosure<Chunk> {
+  outputStream* _st;
+  int _print_line;
+
+ public:
+  PrintFreeListsClosure(outputStream* st) {
+    _st = st;
+    _print_line = 0;
+  }
+  void do_list(FreeList<Chunk>* fl) {
+    if (++_print_line >= 40) {
+      FreeList<Chunk>::print_labels_on(_st, "size");
+      _print_line = 0;
+    }
+    fl->print_on(gclog_or_tty);
+    size_t sz = fl->size();
+    for (Chunk* fc = fl->head(); fc != NULL;
+         fc = fc->next()) {
+      _st->print_cr("\t[" PTR_FORMAT "," PTR_FORMAT ")  %s",
+                    fc, (HeapWord*)fc + sz,
+                    fc->cantCoalesce() ? "\t CC" : "");
+    }
+  }
+};
+
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::print_free_lists(outputStream* st) const {
+
+  FreeList<Chunk>::print_labels_on(st, "size");
+  PrintFreeListsClosure<Chunk> pflc(st);
+  pflc.do_tree(root());
+}
+
+// Verify the following tree invariants:
+// . _root has no parent
+// . parent and child point to each other
+// . each node's key correctly related to that of its child(ren)
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::verify_tree() const {
+  guarantee(root() == NULL || total_free_blocks() == 0 ||
+    total_size() != 0, "_total_size should't be 0?");
+  guarantee(root() == NULL || root()->parent() == NULL, "_root shouldn't have parent");
+  verify_tree_helper(root());
+}
+
+template <class Chunk>
+size_t BinaryTreeDictionary<Chunk>::verify_prev_free_ptrs(TreeList<Chunk>* tl) {
+  size_t ct = 0;
+  for (Chunk* curFC = tl->head(); curFC != NULL; curFC = curFC->next()) {
+    ct++;
+    assert(curFC->prev() == NULL || curFC->prev()->is_free(),
+      "Chunk should be free");
+  }
+  return ct;
+}
+
+// Note: this helper is recursive rather than iterative, so use with
+// caution on very deep trees; and watch out for stack overflow errors;
+// In general, to be used only for debugging.
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::verify_tree_helper(TreeList<Chunk>* tl) const {
+  if (tl == NULL)
+    return;
+  guarantee(tl->size() != 0, "A list must has a size");
+  guarantee(tl->left()  == NULL || tl->left()->parent()  == tl,
+         "parent<-/->left");
+  guarantee(tl->right() == NULL || tl->right()->parent() == tl,
+         "parent<-/->right");;
+  guarantee(tl->left() == NULL  || tl->left()->size()    <  tl->size(),
+         "parent !> left");
+  guarantee(tl->right() == NULL || tl->right()->size()   >  tl->size(),
+         "parent !< left");
+  guarantee(tl->head() == NULL || tl->head()->is_free(), "!Free");
+  guarantee(tl->head() == NULL || tl->head_as_TreeChunk()->list() == tl,
+    "list inconsistency");
+  guarantee(tl->count() > 0 || (tl->head() == NULL && tl->tail() == NULL),
+    "list count is inconsistent");
+  guarantee(tl->count() > 1 || tl->head() == tl->tail(),
+    "list is incorrectly constructed");
+  size_t count = verify_prev_free_ptrs(tl);
+  guarantee(count == (size_t)tl->count(), "Node count is incorrect");
+  if (tl->head() != NULL) {
+    tl->head_as_TreeChunk()->verify_tree_chunk_list();
+  }
+  verify_tree_helper(tl->left());
+  verify_tree_helper(tl->right());
+}
+
+template <class Chunk>
+void BinaryTreeDictionary<Chunk>::verify() const {
+  verify_tree();
+  guarantee(total_size() == total_size_in_tree(root()), "Total Size inconsistency");
+}
+
+#ifndef SERIALGC
+// Explicitly instantiate these types for FreeChunk.
+template class BinaryTreeDictionary<FreeChunk>;
+template class TreeChunk<FreeChunk>;
+template class TreeList<FreeChunk>;
+#endif // SERIALGC
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/memory/binaryTreeDictionary.hpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/memory/binaryTreeDictionary.hpp	Fri May 04 14:10:30 2012 -0700
@@ -0,0 +1,329 @@
+/*
+ * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_MEMORY_BINARYTREEDICTIONARY_HPP
+#define SHARE_VM_MEMORY_BINARYTREEDICTIONARY_HPP
+
+#include "memory/freeBlockDictionary.hpp"
+#include "memory/freeList.hpp"
+
+/*
+ * A binary tree based search structure for free blocks.
+ * This is currently used in the Concurrent Mark&Sweep implementation, but
+ * will be used for free block management for metadata.
+ */
+
+// A TreeList is a FreeList which can be used to maintain a
+// binary tree of free lists.
+
+template <class Chunk> class TreeChunk;
+template <class Chunk> class BinaryTreeDictionary;
+template <class Chunk> class AscendTreeCensusClosure;
+template <class Chunk> class DescendTreeCensusClosure;
+template <class Chunk> class DescendTreeSearchClosure;
+
+template <class Chunk>
+class TreeList: public FreeList<Chunk> {
+  friend class TreeChunk<Chunk>;
+  friend class BinaryTreeDictionary<Chunk>;
+  friend class AscendTreeCensusClosure<Chunk>;
+  friend class DescendTreeCensusClosure<Chunk>;
+  friend class DescendTreeSearchClosure<Chunk>;
+
+  TreeList<Chunk>* _parent;
+  TreeList<Chunk>* _left;
+  TreeList<Chunk>* _right;
+
+ protected:
+  TreeList<Chunk>* parent() const { return _parent; }
+  TreeList<Chunk>* left()   const { return _left;   }
+  TreeList<Chunk>* right()  const { return _right;  }
+
+  // Wrapper on call to base class, to get the template to compile.
+  Chunk* head() const { return FreeList<Chunk>::head(); }
+  Chunk* tail() const { return FreeList<Chunk>::tail(); }
+  void set_head(Chunk* head) { FreeList<Chunk>::set_head(head); }
+  void set_tail(Chunk* tail) { FreeList<Chunk>::set_tail(tail); }
+
+  size_t size() const { return FreeList<Chunk>::size(); }
+
+  // Accessors for links in tree.
+
+  void set_left(TreeList<Chunk>* tl) {
+    _left   = tl;
+    if (tl != NULL)
+      tl->set_parent(this);
+  }
+  void set_right(TreeList<Chunk>* tl) {
+    _right  = tl;
+    if (tl != NULL)
+      tl->set_parent(this);
+  }
+  void set_parent(TreeList<Chunk>* tl)  { _parent = tl;   }
+
+  void clearLeft()               { _left = NULL;   }
+  void clear_right()              { _right = NULL;  }
+  void clear_parent()             { _parent = NULL; }
+  void initialize()              { clearLeft(); clear_right(), clear_parent(); }
+
+  // For constructing a TreeList from a Tree chunk or
+  // address and size.
+  static TreeList<Chunk>* as_TreeList(TreeChunk<Chunk>* tc);
+  static TreeList<Chunk>* as_TreeList(HeapWord* addr, size_t size);
+
+  // Returns the head of the free list as a pointer to a TreeChunk.
+  TreeChunk<Chunk>* head_as_TreeChunk();
+
+  // Returns the first available chunk in the free list as a pointer
+  // to a TreeChunk.
+  TreeChunk<Chunk>* first_available();
+
+  // Returns the block with the largest heap address amongst
+  // those in the list for this size; potentially slow and expensive,
+  // use with caution!
+  TreeChunk<Chunk>* largest_address();
+
+  // remove_chunk_replace_if_needed() removes the given "tc" from the TreeList.
+  // If "tc" is the first chunk in the list, it is also the
+  // TreeList that is the node in the tree.  remove_chunk_replace_if_needed()
+  // returns the possibly replaced TreeList* for the node in
+  // the tree.  It also updates the parent of the original
+  // node to point to the new node.
+  TreeList<Chunk>* remove_chunk_replace_if_needed(TreeChunk<Chunk>* tc);
+  // See FreeList.
+  void return_chunk_at_head(TreeChunk<Chunk>* tc);
+  void return_chunk_at_tail(TreeChunk<Chunk>* tc);
+};
+
+// A TreeChunk is a subclass of a Chunk that additionally
+// maintains a pointer to the free list on which it is currently
+// linked.
+// A TreeChunk is also used as a node in the binary tree.  This
+// allows the binary tree to be maintained without any additional
+// storage (the free chunks are used).  In a binary tree the first
+// chunk in the free list is also the tree node.  Note that the
+// TreeChunk has an embedded TreeList for this purpose.  Because
+// the first chunk in the list is distinguished in this fashion
+// (also is the node in the tree), it is the last chunk to be found
+// on the free list for a node in the tree and is only removed if
+// it is the last chunk on the free list.
+
+template <class Chunk>
+class TreeChunk : public Chunk {
+  friend class TreeList<Chunk>;
+  TreeList<Chunk>* _list;
+  TreeList<Chunk> _embedded_list;  // if non-null, this chunk is on _list
+ protected:
+  TreeList<Chunk>* embedded_list() const { return (TreeList<Chunk>*) &_embedded_list; }
+  void set_embedded_list(TreeList<Chunk>* v) { _embedded_list = *v; }
+ public:
+  TreeList<Chunk>* list() { return _list; }
+  void set_list(TreeList<Chunk>* v) { _list = v; }
+  static TreeChunk<Chunk>* as_TreeChunk(Chunk* fc);
+  // Initialize fields in a TreeChunk that should be
+  // initialized when the TreeChunk is being added to
+  // a free list in the tree.
+  void initialize() { embedded_list()->initialize(); }
+
+  Chunk* next() const { return Chunk::next(); }
+  Chunk* prev() const { return Chunk::prev(); }
+  size_t size() const volatile { return Chunk::size(); }
+
+  // debugging
+  void verify_tree_chunk_list() const;
+};
+
+
+template <class Chunk>
+class BinaryTreeDictionary: public FreeBlockDictionary<Chunk> {
+  friend class VMStructs;
+  bool       _splay;
+  size_t     _total_size;
+  size_t     _total_free_blocks;
+  TreeList<Chunk>* _root;
+  bool       _adaptive_freelists;
+
+  // private accessors
+  bool splay() const { return _splay; }
+  void set_splay(bool v) { _splay = v; }
+  void set_total_size(size_t v) { _total_size = v; }
+  virtual void inc_total_size(size_t v);
+  virtual void dec_total_size(size_t v);
+  size_t total_free_blocks() const { return _total_free_blocks; }
+  void set_total_free_blocks(size_t v) { _total_free_blocks = v; }
+  TreeList<Chunk>* root() const { return _root; }
+  void set_root(TreeList<Chunk>* v) { _root = v; }
+  bool adaptive_freelists() { return _adaptive_freelists; }
+
+  // This field is added and can be set to point to the
+  // the Mutex used to synchronize access to the
+  // dictionary so that assertion checking can be done.
+  // For example it is set to point to _parDictionaryAllocLock.
+  NOT_PRODUCT(Mutex* _lock;)
+
+  // Remove a chunk of size "size" or larger from the tree and
+  // return it.  If the chunk
+  // is the last chunk of that size, remove the node for that size
+  // from the tree.
+  TreeChunk<Chunk>* get_chunk_from_tree(size_t size, enum FreeBlockDictionary<Chunk>::Dither dither, bool splay);
+  // Return a list of the specified size or NULL from the tree.
+  // The list is not removed from the tree.
+  TreeList<Chunk>* find_list (size_t size) const;
+  // Remove this chunk from the tree.  If the removal results
+  // in an empty list in the tree, remove the empty list.
+  TreeChunk<Chunk>* remove_chunk_from_tree(TreeChunk<Chunk>* tc);
+  // Remove the node in the trees starting at tl that has the
+  // minimum value and return it.  Repair the tree as needed.
+  TreeList<Chunk>* remove_tree_minimum(TreeList<Chunk>* tl);
+  void       semi_splay_step(TreeList<Chunk>* tl);
+  // Add this free chunk to the tree.
+  void       insert_chunk_in_tree(Chunk* freeChunk);
+ public:
+
+  static const size_t min_tree_chunk_size  = sizeof(TreeChunk<Chunk>)/HeapWordSize;
+
+  void       verify_tree() const;
+  // verify that the given chunk is in the tree.
+  bool       verify_chunk_in_free_list(Chunk* tc) const;
+ private:
+  void          verify_tree_helper(TreeList<Chunk>* tl) const;
+  static size_t verify_prev_free_ptrs(TreeList<Chunk>* tl);
+
+  // Returns the total number of chunks in the list.
+  size_t     total_list_length(TreeList<Chunk>* tl) const;
+  // Returns the total number of words in the chunks in the tree
+  // starting at "tl".
+  size_t     total_size_in_tree(TreeList<Chunk>* tl) const;
+  // Returns the sum of the square of the size of each block
+  // in the tree starting at "tl".
+  double     sum_of_squared_block_sizes(TreeList<Chunk>* const tl) const;
+  // Returns the total number of free blocks in the tree starting
+  // at "tl".
+  size_t     total_free_blocks_in_tree(TreeList<Chunk>* tl) const;
+  size_t     num_free_blocks() const;
+  size_t     treeHeight() const;
+  size_t     tree_height_helper(TreeList<Chunk>* tl) const;
+  size_t     total_nodes_in_tree(TreeList<Chunk>* tl) const;
+  size_t     total_nodes_helper(TreeList<Chunk>* tl) const;
+
+ public:
+  // Constructor
+  BinaryTreeDictionary(bool adaptive_freelists, bool splay = false);
+  BinaryTreeDictionary(MemRegion mr, bool adaptive_freelists, bool splay = false);
+
+  // Public accessors
+  size_t total_size() const { return _total_size; }
+
+  // Reset the dictionary to the initial conditions with
+  // a single free chunk.
+  void       reset(MemRegion mr);
+  void       reset(HeapWord* addr, size_t size);
+  // Reset the dictionary to be empty.
+  void       reset();
+
+  // Return a chunk of size "size" or greater from
+  // the tree.
+  // want a better dynamic splay strategy for the future.
+  Chunk* get_chunk(size_t size, enum FreeBlockDictionary<Chunk>::Dither dither) {
+    FreeBlockDictionary<Chunk>::verify_par_locked();
+    Chunk* res = get_chunk_from_tree(size, dither, splay());
+    assert(res == NULL || res->is_free(),
+           "Should be returning a free chunk");
+    return res;
+  }
+
+  void return_chunk(Chunk* chunk) {
+    FreeBlockDictionary<Chunk>::verify_par_locked();
+    insert_chunk_in_tree(chunk);
+  }
+
+  void remove_chunk(Chunk* chunk) {
+    FreeBlockDictionary<Chunk>::verify_par_locked();
+    remove_chunk_from_tree((TreeChunk<Chunk>*)chunk);
+    assert(chunk->is_free(), "Should still be a free chunk");
+  }
+
+  size_t     max_chunk_size() const;
+  size_t     total_chunk_size(debug_only(const Mutex* lock)) const {
+    debug_only(
+      if (lock != NULL && lock->owned_by_self()) {
+        assert(total_size_in_tree(root()) == total_size(),
+               "_total_size inconsistency");
+      }
+    )
+    return total_size();
+  }
+
+  size_t     min_size() const {
+    return min_tree_chunk_size;
+  }
+
+  double     sum_of_squared_block_sizes() const {
+    return sum_of_squared_block_sizes(root());
+  }
+
+  Chunk* find_chunk_ends_at(HeapWord* target) const;
+
+  // Find the list with size "size" in the binary tree and update
+  // the statistics in the list according to "split" (chunk was
+  // split or coalesce) and "birth" (chunk was added or removed).
+  void       dict_census_udpate(size_t size, bool split, bool birth);
+  // Return true if the dictionary is overpopulated (more chunks of
+  // this size than desired) for size "size".
+  bool       coal_dict_over_populated(size_t size);
+  // Methods called at the beginning of a sweep to prepare the
+  // statistics for the sweep.
+  void       begin_sweep_dict_census(double coalSurplusPercent,
+                                  float inter_sweep_current,
+                                  float inter_sweep_estimate,
+                                  float intra_sweep_estimate);
+  // Methods called after the end of a sweep to modify the
+  // statistics for the sweep.
+  void       end_sweep_dict_census(double splitSurplusPercent);
+  // Return the largest free chunk in the tree.
+  Chunk* find_largest_dict() const;
+  // Accessors for statistics
+  void       set_tree_surplus(double splitSurplusPercent);
+  void       set_tree_hints(void);
+  // Reset statistics for all the lists in the tree.
+  void       clear_tree_census(void);
+  // Print the statistcis for all the lists in the tree.  Also may
+  // print out summaries.
+  void       print_dict_census(void) const;
+  void       print_free_lists(outputStream* st) const;
+
+  // For debugging.  Returns the sum of the _returned_bytes for
+  // all lists in the tree.
+  size_t     sum_dict_returned_bytes()     PRODUCT_RETURN0;
+  // Sets the _returned_bytes for all the lists in the tree to zero.
+  void       initialize_dict_returned_bytes()      PRODUCT_RETURN;
+  // For debugging.  Return the total number of chunks in the dictionary.
+  size_t     total_count()       PRODUCT_RETURN0;
+
+  void       report_statistics() const;
+
+  void       verify() const;
+};
+
+#endif // SHARE_VM_MEMORY_BINARYTREEDICTIONARY_HPP
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/memory/freeBlockDictionary.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/memory/freeBlockDictionary.cpp	Fri May 04 14:10:30 2012 -0700
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#ifndef SERIALGC
+#include "gc_implementation/concurrentMarkSweep/freeChunk.hpp"
+#endif // SERIALGC
+#include "memory/freeBlockDictionary.hpp"
+#ifdef TARGET_OS_FAMILY_linux
+# include "thread_linux.inline.hpp"
+#endif
+#ifdef TARGET_OS_FAMILY_solaris
+# include "thread_solaris.inline.hpp"
+#endif
+#ifdef TARGET_OS_FAMILY_windows
+# include "thread_windows.inline.hpp"
+#endif
+#ifdef TARGET_OS_FAMILY_bsd
+# include "thread_bsd.inline.hpp"
+#endif
+
+#ifndef PRODUCT
+template <class Chunk> Mutex* FreeBlockDictionary<Chunk>::par_lock() const {
+  return _lock;
+}
+
+template <class Chunk> void FreeBlockDictionary<Chunk>::set_par_lock(Mutex* lock) {
+  _lock = lock;
+}
+
+template <class Chunk> void FreeBlockDictionary<Chunk>::verify_par_locked() const {
+#ifdef ASSERT
+  if (ParallelGCThreads > 0) {
+    Thread* my_thread = Thread::current();
+    if (my_thread->is_GC_task_thread()) {
+      assert(par_lock() != NULL, "Should be using locking?");
+      assert_lock_strong(par_lock());
+    }
+  }
+#endif // ASSERT
+}
+#endif
+
+#ifndef SERIALGC
+// Explicitly instantiate for FreeChunk
+template class FreeBlockDictionary<FreeChunk>;
+#endif // SERIALGC
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/memory/freeBlockDictionary.hpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/memory/freeBlockDictionary.hpp	Fri May 04 14:10:30 2012 -0700
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_MEMORY_FREEBLOCKDICTIONARY_HPP
+#define SHARE_VM_MEMORY_FREEBLOCKDICTIONARY_HPP
+
+#include "memory/allocation.hpp"
+#include "runtime/mutex.hpp"
+#include "utilities/debug.hpp"
+#include "utilities/globalDefinitions.hpp"
+#include "utilities/ostream.hpp"
+
+// A FreeBlockDictionary is an abstract superclass that will allow
+// a number of alternative implementations in the future.
+template <class Chunk>
+class FreeBlockDictionary: public CHeapObj {
+ public:
+  enum Dither {
+    atLeast,
+    exactly,
+    roughly
+  };
+  enum DictionaryChoice {
+    dictionaryBinaryTree = 0,
+    dictionarySplayTree  = 1,
+    dictionarySkipList   = 2
+  };
+
+ private:
+  NOT_PRODUCT(Mutex* _lock;)
+
+ public:
+  virtual void       remove_chunk(Chunk* fc) = 0;
+  virtual Chunk*     get_chunk(size_t size, Dither dither = atLeast) = 0;
+  virtual void       return_chunk(Chunk* chunk) = 0;
+  virtual size_t     total_chunk_size(debug_only(const Mutex* lock)) const = 0;
+  virtual size_t     max_chunk_size()   const = 0;
+  virtual size_t     min_size()        const = 0;
+  // Reset the dictionary to the initial conditions for a single
+  // block.
+  virtual void       reset(HeapWord* addr, size_t size) = 0;
+  virtual void       reset() = 0;
+
+  virtual void       dict_census_udpate(size_t size, bool split, bool birth) = 0;
+  virtual bool       coal_dict_over_populated(size_t size) = 0;
+  virtual void       begin_sweep_dict_census(double coalSurplusPercent,
+                       float inter_sweep_current, float inter_sweep_estimate,
+                       float intra__sweep_current) = 0;
+  virtual void       end_sweep_dict_census(double splitSurplusPercent) = 0;
+  virtual Chunk*     find_largest_dict() const = 0;
+  // verify that the given chunk is in the dictionary.
+  virtual bool verify_chunk_in_free_list(Chunk* tc) const = 0;
+
+  // Sigma_{all_free_blocks} (block_size^2)
+  virtual double sum_of_squared_block_sizes() const = 0;
+
+  virtual Chunk* find_chunk_ends_at(HeapWord* target) const = 0;
+  virtual void inc_total_size(size_t v) = 0;
+  virtual void dec_total_size(size_t v) = 0;
+
+  NOT_PRODUCT (
+    virtual size_t   sum_dict_returned_bytes() = 0;
+    virtual void     initialize_dict_returned_bytes() = 0;
+    virtual size_t   total_count() = 0;
+  )
+
+  virtual void       report_statistics() const {
+    gclog_or_tty->print("No statistics available");
+  }
+
+  virtual void       print_dict_census() const = 0;
+  virtual void       print_free_lists(outputStream* st) const = 0;
+
+  virtual void       verify()         const = 0;
+
+  Mutex* par_lock()                const PRODUCT_RETURN0;
+  void   set_par_lock(Mutex* lock)       PRODUCT_RETURN;
+  void   verify_par_locked()       const PRODUCT_RETURN;
+};
+
+#endif // SHARE_VM_MEMORY_FREEBLOCKDICTIONARY_HPP
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/memory/freeList.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/memory/freeList.cpp	Fri May 04 14:10:30 2012 -0700
@@ -0,0 +1,370 @@
+/*
+ * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "memory/freeBlockDictionary.hpp"
+#include "memory/freeList.hpp"
+#include "memory/sharedHeap.hpp"
+#include "runtime/globals.hpp"
+#include "runtime/mutex.hpp"
+#include "runtime/vmThread.hpp"
+
+#ifndef SERIALGC
+#include "gc_implementation/concurrentMarkSweep/freeChunk.hpp"
+#endif // SERIALGC
+
+// Free list.  A FreeList is used to access a linked list of chunks
+// of space in the heap.  The head and tail are maintained so that
+// items can be (as in the current implementation) added at the
+// at the tail of the list and removed from the head of the list to
+// maintain a FIFO queue.
+
+template <class Chunk>
+FreeList<Chunk>::FreeList() :
+  _head(NULL), _tail(NULL)
+#ifdef ASSERT
+  , _protecting_lock(NULL)
+#endif
+{
+  _size         = 0;
+  _count        = 0;
+  _hint         = 0;
+  init_statistics();
+}
+
+template <class Chunk>
+FreeList<Chunk>::FreeList(Chunk* fc) :
+  _head(fc), _tail(fc)
+#ifdef ASSERT
+  , _protecting_lock(NULL)
+#endif
+{
+  _size         = fc->size();
+  _count        = 1;
+  _hint         = 0;
+  init_statistics();
+#ifndef PRODUCT
+  _allocation_stats.set_returned_bytes(size() * HeapWordSize);
+#endif
+}
+
+template <class Chunk>
+void FreeList<Chunk>::reset(size_t hint) {
+  set_count(0);
+  set_head(NULL);
+  set_tail(NULL);
+  set_hint(hint);
+}
+
+template <class Chunk>
+void FreeList<Chunk>::init_statistics(bool split_birth) {
+  _allocation_stats.initialize(split_birth);
+}
+
+template <class Chunk>
+Chunk* FreeList<Chunk>::get_chunk_at_head() {
+  assert_proper_lock_protection();
+  assert(head() == NULL || head()->prev() == NULL, "list invariant");
+  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
+  Chunk* fc = head();
+  if (fc != NULL) {
+    Chunk* nextFC = fc->next();
+    if (nextFC != NULL) {
+      // The chunk fc being removed has a "next".  Set the "next" to the
+      // "prev" of fc.
+      nextFC->link_prev(NULL);
+    } else { // removed tail of list
+      link_tail(NULL);
+    }
+    link_head(nextFC);
+    decrement_count();
+  }
+  assert(head() == NULL || head()->prev() == NULL, "list invariant");
+  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
+  return fc;
+}
+
+
+template <class Chunk>
+void FreeList<Chunk>::getFirstNChunksFromList(size_t n, FreeList<Chunk>* fl) {
+  assert_proper_lock_protection();
+  assert(fl->count() == 0, "Precondition");
+  if (count() > 0) {
+    int k = 1;
+    fl->set_head(head()); n--;
+    Chunk* tl = head();
+    while (tl->next() != NULL && n > 0) {
+      tl = tl->next(); n--; k++;
+    }
+    assert(tl != NULL, "Loop Inv.");
+
+    // First, fix up the list we took from.
+    Chunk* new_head = tl->next();
+    set_head(new_head);
+    set_count(count() - k);
+    if (new_head == NULL) {
+      set_tail(NULL);
+    } else {
+      new_head->link_prev(NULL);
+    }
+    // Now we can fix up the tail.
+    tl->link_next(NULL);
+    // And return the result.
+    fl->set_tail(tl);
+    fl->set_count(k);
+  }
+}
+
+// Remove this chunk from the list
+template <class Chunk>
+void FreeList<Chunk>::remove_chunk(Chunk*fc) {
+   assert_proper_lock_protection();
+   assert(head() != NULL, "Remove from empty list");
+   assert(fc != NULL, "Remove a NULL chunk");
+   assert(size() == fc->size(), "Wrong list");
+   assert(head() == NULL || head()->prev() == NULL, "list invariant");
+   assert(tail() == NULL || tail()->next() == NULL, "list invariant");
+
+   Chunk* prevFC = fc->prev();
+   Chunk* nextFC = fc->next();
+   if (nextFC != NULL) {
+     // The chunk fc being removed has a "next".  Set the "next" to the
+     // "prev" of fc.
+     nextFC->link_prev(prevFC);
+   } else { // removed tail of list
+     link_tail(prevFC);
+   }
+   if (prevFC == NULL) { // removed head of list
+     link_head(nextFC);
+     assert(nextFC == NULL || nextFC->prev() == NULL,
+       "Prev of head should be NULL");
+   } else {
+     prevFC->link_next(nextFC);
+     assert(tail() != prevFC || prevFC->next() == NULL,
+       "Next of tail should be NULL");
+   }
+   decrement_count();
+   assert(((head() == NULL) + (tail() == NULL) + (count() == 0)) % 3 == 0,
+          "H/T/C Inconsistency");
+   // clear next and prev fields of fc, debug only
+   NOT_PRODUCT(
+     fc->link_prev(NULL);
+     fc->link_next(NULL);
+   )
+   assert(fc->is_free(), "Should still be a free chunk");
+   assert(head() == NULL || head()->prev() == NULL, "list invariant");
+   assert(tail() == NULL || tail()->next() == NULL, "list invariant");
+   assert(head() == NULL || head()->size() == size(), "wrong item on list");
+   assert(tail() == NULL || tail()->size() == size(), "wrong item on list");
+}
+
+// Add this chunk at the head of the list.
+template <class Chunk>
+void FreeList<Chunk>::return_chunk_at_head(Chunk* chunk, bool record_return) {
+  assert_proper_lock_protection();
+  assert(chunk != NULL, "insert a NULL chunk");
+  assert(size() == chunk->size(), "Wrong size");
+  assert(head() == NULL || head()->prev() == NULL, "list invariant");
+  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
+
+  Chunk* oldHead = head();
+  assert(chunk != oldHead, "double insertion");
+  chunk->link_after(oldHead);
+  link_head(chunk);
+  if (oldHead == NULL) { // only chunk in list
+    assert(tail() == NULL, "inconsistent FreeList");
+    link_tail(chunk);
+  }
+  increment_count(); // of # of chunks in list
+  DEBUG_ONLY(
+    if (record_return) {
+      increment_returned_bytes_by(size()*HeapWordSize);
+    }
+  )
+  assert(head() == NULL || head()->prev() == NULL, "list invariant");
+  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
+  assert(head() == NULL || head()->size() == size(), "wrong item on list");
+  assert(tail() == NULL || tail()->size() == size(), "wrong item on list");
+}
+
+template <class Chunk>
+void FreeList<Chunk>::return_chunk_at_head(Chunk* chunk) {
+  assert_proper_lock_protection();
+  return_chunk_at_head(chunk, true);
+}
+
+// Add this chunk at the tail of the list.
+template <class Chunk>
+void FreeList<Chunk>::return_chunk_at_tail(Chunk* chunk, bool record_return) {
+  assert_proper_lock_protection();
+  assert(head() == NULL || head()->prev() == NULL, "list invariant");
+  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
+  assert(chunk != NULL, "insert a NULL chunk");
+  assert(size() == chunk->size(), "wrong size");
+
+  Chunk* oldTail = tail();
+  assert(chunk != oldTail, "double insertion");
+  if (oldTail != NULL) {
+    oldTail->link_after(chunk);
+  } else { // only chunk in list
+    assert(head() == NULL, "inconsistent FreeList");
+    link_head(chunk);
+  }
+  link_tail(chunk);
+  increment_count();  // of # of chunks in list
+  DEBUG_ONLY(
+    if (record_return) {
+      increment_returned_bytes_by(size()*HeapWordSize);
+    }
+  )
+  assert(head() == NULL || head()->prev() == NULL, "list invariant");
+  assert(tail() == NULL || tail()->next() == NULL, "list invariant");
+  assert(head() == NULL || head()->size() == size(), "wrong item on list");
+  assert(tail() == NULL || tail()->size() == size(), "wrong item on list");
+}
+
+template <class Chunk>
+void FreeList<Chunk>::return_chunk_at_tail(Chunk* chunk) {
+  return_chunk_at_tail(chunk, true);
+}
+
+template <class Chunk>
+void FreeList<Chunk>::prepend(FreeList<Chunk>* fl) {
+  assert_proper_lock_protection();
+  if (fl->count() > 0) {
+    if (count() == 0) {
+      set_head(fl->head());
+      set_tail(fl->tail());
+      set_count(fl->count());
+    } else {
+      // Both are non-empty.
+      Chunk* fl_tail = fl->tail();
+      Chunk* this_head = head();
+      assert(fl_tail->next() == NULL, "Well-formedness of fl");
+      fl_tail->link_next(this_head);
+      this_head->link_prev(fl_tail);
+      set_head(fl->head());
+      set_count(count() + fl->count());
+    }
+    fl->set_head(NULL);
+    fl->set_tail(NULL);
+    fl->set_count(0);
+  }
+}
+
+// verify_chunk_in_free_list() is used to verify that an item is in this free list.
+// It is used as a debugging aid.
+template <class Chunk>
+bool FreeList<Chunk>::verify_chunk_in_free_list(Chunk* fc) const {
+  // This is an internal consistency check, not part of the check that the
+  // chunk is in the free lists.
+  guarantee(fc->size() == size(), "Wrong list is being searched");
+  Chunk* curFC = head();
+  while (curFC) {
+    // This is an internal consistency check.
+    guarantee(size() == curFC->size(), "Chunk is in wrong list.");
+    if (fc == curFC) {
+      return true;
+    }
+    curFC = curFC->next();
+  }
+  return false;
+}
+
+#ifndef PRODUCT
+template <class Chunk>
+void FreeList<Chunk>::verify_stats() const {
+  // The +1 of the LH comparand is to allow some "looseness" in
+  // checking: we usually call this interface when adding a block
+  // and we'll subsequently update the stats; we cannot update the
+  // stats beforehand because in the case of the large-block BT
+  // dictionary for example, this might be the first block and
+  // in that case there would be no place that we could record
+  // the stats (which are kept in the block itself).
+  assert((_allocation_stats.prev_sweep() + _allocation_stats.split_births()
+          + _allocation_stats.coal_births() + 1)   // Total Production Stock + 1
+         >= (_allocation_stats.split_deaths() + _allocation_stats.coal_deaths()
+             + (ssize_t)count()),                // Total Current Stock + depletion
+         err_msg("FreeList " PTR_FORMAT " of size " SIZE_FORMAT
+                 " violates Conservation Principle: "
+                 "prev_sweep(" SIZE_FORMAT ")"
+                 " + split_births(" SIZE_FORMAT ")"
+                 " + coal_births(" SIZE_FORMAT ") + 1 >= "
+                 " split_deaths(" SIZE_FORMAT ")"
+                 " coal_deaths(" SIZE_FORMAT ")"
+                 " + count(" SSIZE_FORMAT ")",
+                 this, _size, _allocation_stats.prev_sweep(), _allocation_stats.split_births(),
+                 _allocation_stats.split_births(), _allocation_stats.split_deaths(),
+                 _allocation_stats.coal_deaths(), count()));
+}
+
+template <class Chunk>
+void FreeList<Chunk>::assert_proper_lock_protection_work() const {
+  assert(_protecting_lock != NULL, "Don't call this directly");
+  assert(ParallelGCThreads > 0, "Don't call this directly");
+  Thread* thr = Thread::current();
+  if (thr->is_VM_thread() || thr->is_ConcurrentGC_thread()) {
+    // assert that we are holding the freelist lock
+  } else if (thr->is_GC_task_thread()) {
+    assert(_protecting_lock->owned_by_self(), "FreeList RACE DETECTED");
+  } else if (thr->is_Java_thread()) {
+    assert(!SafepointSynchronize::is_at_safepoint(), "Should not be executing");
+  } else {
+    ShouldNotReachHere();  // unaccounted thread type?
+  }
+}
+#endif
+
+// Print the "label line" for free list stats.
+template <class Chunk>
+void FreeList<Chunk>::print_labels_on(outputStream* st, const char* c) {
+  st->print("%16s\t", c);
+  st->print("%14s\t"    "%14s\t"    "%14s\t"    "%14s\t"    "%14s\t"
+            "%14s\t"    "%14s\t"    "%14s\t"    "%14s\t"    "%14s\t"    "\n",
+            "bfrsurp", "surplus", "desired", "prvSwep", "bfrSwep",
+            "count",   "cBirths", "cDeaths", "sBirths", "sDeaths");
+}
+
+// Print the AllocationStats for the given free list. If the second argument
+// to the call is a non-null string, it is printed in the first column;
+// otherwise, if the argument is null (the default), then the size of the
+// (free list) block is printed in the first column.
+template <class Chunk>
+void FreeList<Chunk>::print_on(outputStream* st, const char* c) const {
+  if (c != NULL) {
+    st->print("%16s", c);
+  } else {
+    st->print(SIZE_FORMAT_W(16), size());
+  }
+  st->print("\t"
+           SSIZE_FORMAT_W(14) "\t" SSIZE_FORMAT_W(14) "\t" SSIZE_FORMAT_W(14) "\t" SSIZE_FORMAT_W(14) "\t" SSIZE_FORMAT_W(14) "\t"
+           SSIZE_FORMAT_W(14) "\t" SSIZE_FORMAT_W(14) "\t" SSIZE_FORMAT_W(14) "\t" SSIZE_FORMAT_W(14) "\t" SSIZE_FORMAT_W(14) "\n",
+           bfr_surp(),             surplus(),             desired(),             prev_sweep(),           before_sweep(),
+           count(),               coal_births(),          coal_deaths(),          split_births(),         split_deaths());
+}
+
+#ifndef SERIALGC
+// Needs to be after the definitions have been seen.
+template class FreeList<FreeChunk>;
+#endif // SERIALGC
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/memory/freeList.hpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/memory/freeList.hpp	Fri May 04 14:10:30 2012 -0700
@@ -0,0 +1,329 @@
+/*
+ * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_MEMORY_FREELIST_HPP
+#define SHARE_VM_MEMORY_FREELIST_HPP
+
+#include "gc_implementation/shared/allocationStats.hpp"
+
+class CompactibleFreeListSpace;
+
+// A class for maintaining a free list of Chunk's.  The FreeList
+// maintains a the structure of the list (head, tail, etc.) plus
+// statistics for allocations from the list.  The links between items
+// are not part of FreeList.  The statistics are
+// used to make decisions about coalescing Chunk's when they
+// are swept during collection.
+//
+// See the corresponding .cpp file for a description of the specifics
+// for that implementation.
+
+class Mutex;
+template <class Chunk> class TreeList;
+template <class Chunk> class PrintTreeCensusClosure;
+
+template <class Chunk>
+class FreeList VALUE_OBJ_CLASS_SPEC {
+  friend class CompactibleFreeListSpace;
+  friend class VMStructs;
+  friend class PrintTreeCensusClosure<Chunk>;
+
+ private:
+  Chunk*        _head;          // Head of list of free chunks
+  Chunk*        _tail;          // Tail of list of free chunks
+  size_t        _size;          // Size in Heap words of each chunk
+  ssize_t       _count;         // Number of entries in list
+  size_t        _hint;          // next larger size list with a positive surplus
+
+  AllocationStats _allocation_stats; // allocation-related statistics
+
+#ifdef ASSERT
+  Mutex*        _protecting_lock;
+#endif
+
+  // Asserts false if the protecting lock (if any) is not held.
+  void assert_proper_lock_protection_work() const PRODUCT_RETURN;
+  void assert_proper_lock_protection() const {
+#ifdef ASSERT
+    if (_protecting_lock != NULL)
+      assert_proper_lock_protection_work();
+#endif
+  }
+
+  // Initialize the allocation statistics.
+ protected:
+  void init_statistics(bool split_birth = false);
+  void set_count(ssize_t v) { _count = v;}
+  void increment_count()    {
+    _count++;
+  }
+
+  void decrement_count() {
+    _count--;
+    assert(_count >= 0, "Count should not be negative");
+  }
+
+ public:
+  // Constructor
+  // Construct a list without any entries.
+  FreeList();
+  // Construct a list with "fc" as the first (and lone) entry in the list.
+  FreeList(Chunk* fc);
+
+  // Reset the head, tail, hint, and count of a free list.
+  void reset(size_t hint);
+
+  // Declare the current free list to be protected by the given lock.
+#ifdef ASSERT
+  void set_protecting_lock(Mutex* protecting_lock) {
+    _protecting_lock = protecting_lock;
+  }
+#endif
+
+  // Accessors.
+  Chunk* head() const {
+    assert_proper_lock_protection();
+    return _head;
+  }
+  void set_head(Chunk* v) {
+    assert_proper_lock_protection();
+    _head = v;
+    assert(!_head || _head->size() == _size, "bad chunk size");
+  }
+  // Set the head of the list and set the prev field of non-null
+  // values to NULL.
+  void link_head(Chunk* v) {
+    assert_proper_lock_protection();
+    set_head(v);
+    // If this method is not used (just set the head instead),
+    // this check can be avoided.
+    if (v != NULL) {
+      v->link_prev(NULL);
+    }
+  }
+
+  Chunk* tail() const {
+    assert_proper_lock_protection();
+    return _tail;
+  }
+  void set_tail(Chunk* v) {
+    assert_proper_lock_protection();
+    _tail = v;
+    assert(!_tail || _tail->size() == _size, "bad chunk size");
+  }
+  // Set the tail of the list and set the next field of non-null
+  // values to NULL.
+  void link_tail(Chunk* v) {
+    assert_proper_lock_protection();
+    set_tail(v);
+    if (v != NULL) {
+      v->clear_next();
+    }
+  }
+
+  // No locking checks in read-accessors: lock-free reads (only) are benign.
+  // Readers are expected to have the lock if they are doing work that
+  // requires atomicity guarantees in sections of code.
+  size_t size() const {
+    return _size;
+  }
+  void set_size(size_t v) {
+    assert_proper_lock_protection();
+    _size = v;
+  }
+  ssize_t count() const {
+    return _count;
+  }
+  size_t hint() const {
+    return _hint;
+  }
+  void set_hint(size_t v) {
+    assert_proper_lock_protection();
+    assert(v == 0 || _size < v, "Bad hint"); _hint = v;
+  }
+
+  // Accessors for statistics
+  AllocationStats* allocation_stats() {
+    assert_proper_lock_protection();
+    return &_allocation_stats;
+  }
+
+  ssize_t desired() const {
+    return _allocation_stats.desired();
+  }
+  void set_desired(ssize_t v) {
+    assert_proper_lock_protection();
+    _allocation_stats.set_desired(v);
+  }
+  void compute_desired(float inter_sweep_current,
+                       float inter_sweep_estimate,
+                       float intra_sweep_estimate) {
+    assert_proper_lock_protection();
+    _allocation_stats.compute_desired(_count,
+                                      inter_sweep_current,
+                                      inter_sweep_estimate,
+                                      intra_sweep_estimate);
+  }
+  ssize_t coal_desired() const {
+    return _allocation_stats.coal_desired();
+  }
+  void set_coal_desired(ssize_t v) {
+    assert_proper_lock_protection();
+    _allocation_stats.set_coal_desired(v);
+  }
+
+  ssize_t surplus() const {
+    return _allocation_stats.surplus();
+  }
+  void set_surplus(ssize_t v) {
+    assert_proper_lock_protection();
+    _allocation_stats.set_surplus(v);
+  }
+  void increment_surplus() {
+    assert_proper_lock_protection();
+    _allocation_stats.increment_surplus();
+  }
+  void decrement_surplus() {
+    assert_proper_lock_protection();
+    _allocation_stats.decrement_surplus();
+  }
+
+  ssize_t bfr_surp() const {
+    return _allocation_stats.bfr_surp();
+  }
+  void set_bfr_surp(ssize_t v) {
+    assert_proper_lock_protection();
+    _allocation_stats.set_bfr_surp(v);
+  }
+  ssize_t prev_sweep() const {
+    return _allocation_stats.prev_sweep();
+  }
+  void set_prev_sweep(ssize_t v) {
+    assert_proper_lock_protection();
+    _allocation_stats.set_prev_sweep(v);
+  }
+  ssize_t before_sweep() const {
+    return _allocation_stats.before_sweep();
+  }
+  void set_before_sweep(ssize_t v) {
+    assert_proper_lock_protection();
+    _allocation_stats.set_before_sweep(v);
+  }
+
+  ssize_t coal_births() const {
+    return _allocation_stats.coal_births();
+  }
+  void set_coal_births(ssize_t v) {
+    assert_proper_lock_protection();
+    _allocation_stats.set_coal_births(v);
+  }
+  void increment_coal_births() {
+    assert_proper_lock_protection();
+    _allocation_stats.increment_coal_births();
+  }
+
+  ssize_t coal_deaths() const {
+    return _allocation_stats.coal_deaths();
+  }
+  void set_coal_deaths(ssize_t v) {
+    assert_proper_lock_protection();
+    _allocation_stats.set_coal_deaths(v);
+  }
+  void increment_coal_deaths() {
+    assert_proper_lock_protection();
+    _allocation_stats.increment_coal_deaths();
+  }
+
+  ssize_t split_births() const {
+    return _allocation_stats.split_births();
+  }
+  void set_split_births(ssize_t v) {
+    assert_proper_lock_protection();
+    _allocation_stats.set_split_births(v);
+  }
+  void increment_split_births() {
+    assert_proper_lock_protection();
+    _allocation_stats.increment_split_births();
+  }
+
+  ssize_t split_deaths() const {
+    return _allocation_stats.split_deaths();
+  }
+  void set_split_deaths(ssize_t v) {
+    assert_proper_lock_protection();
+    _allocation_stats.set_split_deaths(v);
+  }
+  void increment_split_deaths() {
+    assert_proper_lock_protection();
+    _allocation_stats.increment_split_deaths();
+  }
+
+  NOT_PRODUCT(
+    // For debugging.  The "_returned_bytes" in all the lists are summed
+    // and compared with the total number of bytes swept during a
+    // collection.
+    size_t returned_bytes() const { return _allocation_stats.returned_bytes(); }
+    void set_returned_bytes(size_t v) { _allocation_stats.set_returned_bytes(v); }
+    void increment_returned_bytes_by(size_t v) {
+      _allocation_stats.set_returned_bytes(_allocation_stats.returned_bytes() + v);
+    }
+  )
+
+  // Unlink head of list and return it.  Returns NULL if
+  // the list is empty.
+  Chunk* get_chunk_at_head();
+
+  // Remove the first "n" or "count", whichever is smaller, chunks from the
+  // list, setting "fl", which is required to be empty, to point to them.
+  void getFirstNChunksFromList(size_t n, FreeList<Chunk>* fl);
+
+  // Unlink this chunk from it's free list
+  void remove_chunk(Chunk* fc);
+
+  // Add this chunk to this free list.
+  void return_chunk_at_head(Chunk* fc);
+  void return_chunk_at_tail(Chunk* fc);
+
+  // Similar to returnChunk* but also records some diagnostic
+  // information.
+  void return_chunk_at_head(Chunk* fc, bool record_return);
+  void return_chunk_at_tail(Chunk* fc, bool record_return);
+
+  // Prepend "fl" (whose size is required to be the same as that of "this")
+  // to the front of "this" list.
+  void prepend(FreeList<Chunk>* fl);
+
+  // Verify that the chunk is in the list.
+  // found.  Return NULL if "fc" is not found.
+  bool verify_chunk_in_free_list(Chunk* fc) const;
+
+  // Stats verification
+  void verify_stats() const PRODUCT_RETURN;
+
+  // Printing support
+  static void print_labels_on(outputStream* st, const char* c);
+  void print_on(outputStream* st, const char* c = NULL) const;
+};
+
+#endif // SHARE_VM_MEMORY_FREELIST_HPP
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/memory/generationSpec.cpp
--- a/hotspot/src/share/vm/memory/generationSpec.cpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/memory/generationSpec.cpp	Fri May 04 14:10:30 2012 -0700
@@ -68,7 +68,7 @@
       ConcurrentMarkSweepGeneration* g = NULL;
       g = new ConcurrentMarkSweepGeneration(rs,
                  init_size(), level, ctrs, UseCMSAdaptiveFreeLists,
-                 (FreeBlockDictionary::DictionaryChoice)CMSDictionaryChoice);
+                 (FreeBlockDictionary<FreeChunk>::DictionaryChoice)CMSDictionaryChoice);
 
       g->initialize_performance_counters();
 
@@ -88,7 +88,7 @@
       ASConcurrentMarkSweepGeneration* g = NULL;
       g = new ASConcurrentMarkSweepGeneration(rs,
                  init_size(), level, ctrs, UseCMSAdaptiveFreeLists,
-                 (FreeBlockDictionary::DictionaryChoice)CMSDictionaryChoice);
+                 (FreeBlockDictionary<FreeChunk>::DictionaryChoice)CMSDictionaryChoice);
 
       g->initialize_performance_counters();
 
@@ -175,7 +175,7 @@
       }
       // XXXPERM
       return new CMSPermGen(perm_rs, init_size, ctrs,
-                   (FreeBlockDictionary::DictionaryChoice)CMSDictionaryChoice);
+                   (FreeBlockDictionary<FreeChunk>::DictionaryChoice)CMSDictionaryChoice);
     }
 #endif // SERIALGC
     default:
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/precompiled/precompiled.hpp
--- a/hotspot/src/share/vm/precompiled/precompiled.hpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/precompiled/precompiled.hpp	Fri May 04 14:10:30 2012 -0700
@@ -293,13 +293,10 @@
 # include "c1/c1_globals.hpp"
 #endif // COMPILER1
 #ifndef SERIALGC
-# include "gc_implementation/concurrentMarkSweep/binaryTreeDictionary.hpp"
 # include "gc_implementation/concurrentMarkSweep/cmsOopClosures.hpp"
 # include "gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp"
 # include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp"
-# include "gc_implementation/concurrentMarkSweep/freeBlockDictionary.hpp"
 # include "gc_implementation/concurrentMarkSweep/freeChunk.hpp"
-# include "gc_implementation/concurrentMarkSweep/freeList.hpp"
 # include "gc_implementation/concurrentMarkSweep/promotionInfo.hpp"
 # include "gc_implementation/g1/dirtyCardQueue.hpp"
 # include "gc_implementation/g1/g1BlockOffsetTable.hpp"
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/runtime/arguments.cpp
--- a/hotspot/src/share/vm/runtime/arguments.cpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/runtime/arguments.cpp	Fri May 04 14:10:30 2012 -0700
@@ -829,6 +829,9 @@
     } else {
       jio_fprintf(defaultStream::error_stream(), "%s", locked_message_buf);
     }
+  } else {
+    jio_fprintf(defaultStream::error_stream(),
+                "Unrecognized VM option '%s'\n", argname);
   }
 
   // allow for commandline "commenting out" options like -XX:#+Verbose
diff -r b3a91113026c -r 6123dd756c56 hotspot/src/share/vm/runtime/vmStructs.cpp
--- a/hotspot/src/share/vm/runtime/vmStructs.cpp	Wed Jul 05 18:09:43 2017 +0200
+++ b/hotspot/src/share/vm/runtime/vmStructs.cpp	Fri May 04 14:10:30 2012 -0700
@@ -44,7 +44,6 @@
 #include "code/vmreg.hpp"
 #include "compiler/oopMap.hpp"
 #include "compiler/compileBroker.hpp"
-#include "gc_implementation/concurrentMarkSweep/freeBlockDictionary.hpp"
 #include "gc_implementation/shared/immutableSpace.hpp"
 #include "gc_implementation/shared/markSweep.hpp"
 #include "gc_implementation/shared/mutableSpace.hpp"
@@ -55,6 +54,7 @@
 #include "memory/cardTableRS.hpp"
 #include "memory/compactPermGen.hpp"
 #include "memory/defNewGeneration.hpp"
+#include "memory/freeBlockDictionary.hpp"
 #include "memory/genCollectedHeap.hpp"
 #include "memory/generation.hpp"
 #include "memory/generationSpec.hpp"
diff -r b3a91113026c -r 6123dd756c56 hotspot/test/runtime/7162488/Test7162488.sh
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/7162488/Test7162488.sh	Fri May 04 14:10:30 2012 -0700
@@ -0,0 +1,77 @@
+#
+#  Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+#  DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+#  This code is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU General Public License version 2 only, as
+#  published by the Free Software Foundation.
+#
+#  This code is distributed in the hope that it will be useful, but WITHOUT
+#  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+#  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+#  version 2 for more details (a copy is included in the LICENSE file that
+#  accompanied this code).
+#
+#  You should have received a copy of the GNU General Public License version
+#  2 along with this work; if not, write to the Free Software Foundation,
+#  Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+#  Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+#  or visit www.oracle.com if you need additional information or have any
+#  questions.
+#
+
+
+# @test Test7162488.sh
+# @bug 7162488
+# @summary VM not printing unknown -XX options
+# @run shell Test7162488.sh
+#
+
+if [ "${TESTSRC}" = "" ]
+  then TESTSRC=.
+fi
+
+if [ "${TESTJAVA}" = "" ]
+then
+  PARENT=`dirname \`which java\``
+  TESTJAVA=`dirname ${PARENT}`
+  printf "TESTJAVA not set, selecting " ${TESTJAVA}
+  printf "  If this is incorrect, try setting the variable manually.\n"
+fi
+
+# set platform-dependent variables
+OS=`uname -s`
+case "$OS" in
+  Windows_* )
+    FS="\\"
+    ;;
+  * )
+    FS="/"
+    ;;
+esac
+
+JAVA=${TESTJAVA}${FS}bin${FS}java
+
+#
+# Just run with an option we are confident will not be recognized,
+# and check for the message:
+#
+OPTION=this_is_not_an_option
+
+${JAVA} ${TESTVMOPTS} -showversion -XX:${OPTION} 2>&1 | grep "Unrecognized VM option" 
+if [ "$?" != "0" ]
+then
+  printf "FAILED: option not flagged as unrecognized.\n"
+  exit 1
+fi
+
+${JAVA} ${TESTVMOPTS} -showversion -XX:${OPTION} 2>&1 | grep ${OPTION}
+if [ "$?" != "0" ]
+then
+  printf "FAILED: bad option not named as being bad.\n"
+  exit 1
+fi
+
+printf "Passed.\n"
+