changeset 4000:92d4b5d8dde4

Merge
author acorn
date Wed, 16 Jan 2013 18:23:37 -0500
parents d58b7b43031b c793367610c1
children 212c5b9c38e7
files src/cpu/x86/vm/vm_version_x86.cpp src/share/vm/runtime/globals.hpp
diffstat 34 files changed, 1090 insertions(+), 595 deletions(-) [+]
line wrap: on
line diff
--- a/agent/src/share/classes/sun/jvm/hotspot/oops/InstanceKlass.java	Fri Jan 11 02:02:51 2013 -0800
+++ b/agent/src/share/classes/sun/jvm/hotspot/oops/InstanceKlass.java	Wed Jan 16 18:23:37 2013 -0500
@@ -52,6 +52,8 @@
   private static int LOW_OFFSET;
   private static int HIGH_OFFSET;
   private static int FIELD_SLOTS;
+  private static short FIELDINFO_TAG_SIZE;
+  private static short FIELDINFO_TAG_OFFSET;
 
   // ClassState constants
   private static int CLASS_STATE_ALLOCATED;
@@ -96,9 +98,12 @@
     NAME_INDEX_OFFSET              = db.lookupIntConstant("FieldInfo::name_index_offset").intValue();
     SIGNATURE_INDEX_OFFSET         = db.lookupIntConstant("FieldInfo::signature_index_offset").intValue();
     INITVAL_INDEX_OFFSET           = db.lookupIntConstant("FieldInfo::initval_index_offset").intValue();
-    LOW_OFFSET                     = db.lookupIntConstant("FieldInfo::low_offset").intValue();
-    HIGH_OFFSET                    = db.lookupIntConstant("FieldInfo::high_offset").intValue();
+    LOW_OFFSET                     = db.lookupIntConstant("FieldInfo::low_packed_offset").intValue();
+    HIGH_OFFSET                    = db.lookupIntConstant("FieldInfo::high_packed_offset").intValue();
     FIELD_SLOTS                    = db.lookupIntConstant("FieldInfo::field_slots").intValue();
+    FIELDINFO_TAG_SIZE             = db.lookupIntConstant("FIELDINFO_TAG_SIZE").shortValue();
+    FIELDINFO_TAG_OFFSET           = db.lookupIntConstant("FIELDINFO_TAG_OFFSET").shortValue();
+
     // read ClassState constants
     CLASS_STATE_ALLOCATED = db.lookupIntConstant("InstanceKlass::allocated").intValue();
     CLASS_STATE_LOADED = db.lookupIntConstant("InstanceKlass::loaded").intValue();
@@ -314,8 +319,12 @@
 
   public int getFieldOffset(int index) {
     U2Array fields = getFields();
-    return VM.getVM().buildIntFromShorts(fields.at(index * FIELD_SLOTS + LOW_OFFSET),
-                                         fields.at(index * FIELD_SLOTS + HIGH_OFFSET));
+    short lo = fields.at(index * FIELD_SLOTS + LOW_OFFSET);
+    short hi = fields.at(index * FIELD_SLOTS + HIGH_OFFSET);
+    if ((lo & FIELDINFO_TAG_SIZE) == FIELDINFO_TAG_OFFSET) {
+      return VM.getVM().buildIntFromShorts(lo, hi) >> FIELDINFO_TAG_SIZE;
+    }
+    throw new RuntimeException("should not reach here");
   }
 
   // Accessors for declared fields
--- a/src/cpu/sparc/vm/vmStructs_sparc.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/cpu/sparc/vm/vmStructs_sparc.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -29,7 +29,7 @@
 // constants required by the Serviceability Agent. This file is
 // referenced by vmStructs.cpp.
 
-#define VM_STRUCTS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry)            \
+#define VM_STRUCTS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field)            \
  \
   /******************************/                                                                                                   \
   /* JavaCallWrapper            */                                                                                                   \
@@ -37,22 +37,12 @@
   /******************************/                                                                                                   \
   /* JavaFrameAnchor            */                                                                                                   \
   /******************************/                                                                                                   \
-  volatile_nonstatic_field(JavaFrameAnchor,     _flags,                                          int)                                \
-                                                                                                                                     \
+  volatile_nonstatic_field(JavaFrameAnchor,     _flags,                                          int)
 
-  /* NOTE that we do not use the last_entry() macro here; it is used  */
-  /* in vmStructs_<os>_<cpu>.hpp's VM_STRUCTS_OS_CPU macro (and must  */
-  /* be present there)                                                */
+#define VM_TYPES_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type)
 
 
-#define VM_TYPES_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry)                               \
-
-  /* NOTE that we do not use the last_entry() macro here; it is used  */
-  /* in vmStructs_<os>_<cpu>.hpp's VM_TYPES_OS_CPU macro (and must    */
-  /* be present there)                                                */
-
-
-#define VM_INT_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry)                                                              \
+#define VM_INT_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)                                                              \
   /******************************/                                        \
   /* Register numbers (C2 only) */                                        \
   /******************************/                                        \
@@ -90,15 +80,6 @@
   declare_c2_constant(R_G6_num)                                           \
   declare_c2_constant(R_G7_num)
 
-
-  /* NOTE that we do not use the last_entry() macro here; it is used       */
-  /* in vmStructs_<os>_<cpu>.hpp's VM_INT_CONSTANTS_OS_CPU macro (and must */
-  /* be present there)                                                     */
-
-#define VM_LONG_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry)                                                              \
-
-  /* NOTE that we do not use the last_entry() macro here; it is used        */
-  /* in vmStructs_<os>_<cpu>.hpp's VM_LONG_CONSTANTS_OS_CPU macro (and must */
-  /* be present there)                                                      */
+#define VM_LONG_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
 #endif // CPU_SPARC_VM_VMSTRUCTS_SPARC_HPP
--- a/src/cpu/sparc/vm/vm_version_sparc.cpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/cpu/sparc/vm/vm_version_sparc.cpp	Wed Jan 16 18:23:37 2013 -0500
@@ -259,6 +259,10 @@
   if (!has_vis1()) // Drop to 0 if no VIS1 support
     UseVIS = 0;
 
+  if (FLAG_IS_DEFAULT(ContendedPaddingWidth) &&
+    (cache_line_size > ContendedPaddingWidth))
+    ContendedPaddingWidth = cache_line_size;
+
 #ifndef PRODUCT
   if (PrintMiscellaneous && Verbose) {
     tty->print("Allocation");
@@ -286,6 +290,9 @@
     if (PrefetchFieldsAhead > 0) {
       tty->print_cr("PrefetchFieldsAhead %d", PrefetchFieldsAhead);
     }
+    if (ContendedPaddingWidth > 0) {
+      tty->print_cr("ContendedPaddingWidth %d", ContendedPaddingWidth);
+    }
   }
 #endif // PRODUCT
 }
--- a/src/cpu/x86/vm/vmStructs_x86.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/cpu/x86/vm/vmStructs_x86.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -29,7 +29,7 @@
 // constants required by the Serviceability Agent. This file is
 // referenced by vmStructs.cpp.
 
-#define VM_STRUCTS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry)            \
+#define VM_STRUCTS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field)            \
                                                                                                                                      \
   /******************************/                                                                                                   \
   /* JavaCallWrapper            */                                                                                                   \
@@ -37,31 +37,14 @@
   /******************************/                                                                                                   \
   /* JavaFrameAnchor            */                                                                                                   \
   /******************************/                                                                                                   \
-  volatile_nonstatic_field(JavaFrameAnchor,     _last_Java_fp,                                    intptr_t*)                              \
-                                                                                                                                     \
+  volatile_nonstatic_field(JavaFrameAnchor,     _last_Java_fp,                                    intptr_t*)
 
-  /* NOTE that we do not use the last_entry() macro here; it is used  */
-  /* in vmStructs_<os>_<cpu>.hpp's VM_STRUCTS_OS_CPU macro (and must  */
-  /* be present there)                                                */
 
 
-#define VM_TYPES_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry)                               \
+#define VM_TYPES_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type)
 
-  /* NOTE that we do not use the last_entry() macro here; it is used  */
-  /* in vmStructs_<os>_<cpu>.hpp's VM_TYPES_OS_CPU macro (and must    */
-  /* be present there)                                                */
+#define VM_INT_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
-
-#define VM_INT_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry)                                                              \
-
-  /* NOTE that we do not use the last_entry() macro here; it is used        */
-  /* in vmStructs_<os>_<cpu>.hpp's VM_INT_CONSTANTS_OS_CPU macro (and must  */
-  /* be present there)                                                      */
-
-#define VM_LONG_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry)                                                              \
-
-  /* NOTE that we do not use the last_entry() macro here; it is used         */
-  /* in vmStructs_<os>_<cpu>.hpp's VM_LONG_CONSTANTS_OS_CPU macro (and must  */
-  /* be present there)                                                       */
+#define VM_LONG_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
 #endif // CPU_X86_VM_VMSTRUCTS_X86_HPP
--- a/src/cpu/x86/vm/vm_version_x86.cpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/cpu/x86/vm/vm_version_x86.cpp	Wed Jan 16 18:23:37 2013 -0500
@@ -745,6 +745,10 @@
   PrefetchFieldsAhead         = prefetch_fields_ahead();
 #endif
 
+  if (FLAG_IS_DEFAULT(ContendedPaddingWidth) &&
+     (cache_line_size > ContendedPaddingWidth))
+     ContendedPaddingWidth = cache_line_size;
+
 #ifndef PRODUCT
   if (PrintMiscellaneous && Verbose) {
     tty->print_cr("Logical CPUs per core: %u",
@@ -791,6 +795,9 @@
     if (PrefetchFieldsAhead > 0) {
       tty->print_cr("PrefetchFieldsAhead %d", PrefetchFieldsAhead);
     }
+    if (ContendedPaddingWidth > 0) {
+      tty->print_cr("ContendedPaddingWidth %d", ContendedPaddingWidth);
+    }
   }
 #endif // !PRODUCT
 }
--- a/src/cpu/zero/vm/vmStructs_zero.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/cpu/zero/vm/vmStructs_zero.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -30,28 +30,12 @@
 // constants required by the Serviceability Agent. This file is
 // referenced by vmStructs.cpp.
 
-#define VM_STRUCTS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
+#define VM_STRUCTS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field)
 
-  /* NOTE that we do not use the last_entry() macro here; it is used  */
-  /* in vmStructs_<os>_<cpu>.hpp's VM_STRUCTS_OS_CPU macro (and must  */
-  /* be present there)                                                */
+#define VM_TYPES_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type)
 
-#define VM_TYPES_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
+#define VM_INT_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
-  /* NOTE that we do not use the last_entry() macro here; it is used  */
-  /* in vmStructs_<os>_<cpu>.hpp's VM_TYPES_OS_CPU macro (and must    */
-  /* be present there)                                                */
-
-#define VM_INT_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
-
-  /* NOTE that we do not use the last_entry() macro here; it is used        */
-  /* in vmStructs_<os>_<cpu>.hpp's VM_INT_CONSTANTS_OS_CPU macro (and must  */
-  /* be present there)                                                      */
-
-#define VM_LONG_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
-
-  /* NOTE that we do not use the last_entry() macro here; it is used         */
-  /* in vmStructs_<os>_<cpu>.hpp's VM_LONG_CONSTANTS_OS_CPU macro (and must  */
-  /* be present there)                                                       */
+#define VM_LONG_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
 #endif // CPU_ZERO_VM_VMSTRUCTS_ZERO_HPP
--- a/src/os/windows/vm/decoder_windows.cpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/os/windows/vm/decoder_windows.cpp	Wed Jan 16 18:23:37 2013 -0500
@@ -49,7 +49,7 @@
     pfn_SymSetOptions _pfnSymSetOptions = (pfn_SymSetOptions)::GetProcAddress(handle, "SymSetOptions");
     pfn_SymInitialize _pfnSymInitialize = (pfn_SymInitialize)::GetProcAddress(handle, "SymInitialize");
     _pfnSymGetSymFromAddr64 = (pfn_SymGetSymFromAddr64)::GetProcAddress(handle, "SymGetSymFromAddr64");
-    _pfnUndecorateSymbolName = (pfn_UndecorateSymbolName)GetProcAddress(handle, "UnDecorateSymbolName");
+    _pfnUndecorateSymbolName = (pfn_UndecorateSymbolName)::GetProcAddress(handle, "UnDecorateSymbolName");
 
     if (_pfnSymSetOptions == NULL || _pfnSymInitialize == NULL || _pfnSymGetSymFromAddr64 == NULL) {
       _pfnSymGetSymFromAddr64 = NULL;
@@ -60,8 +60,9 @@
       return;
     }
 
-    _pfnSymSetOptions(SYMOPT_UNDNAME | SYMOPT_DEFERRED_LOADS);
-    if (!_pfnSymInitialize(GetCurrentProcess(), NULL, TRUE)) {
+    HANDLE hProcess = ::GetCurrentProcess();
+    _pfnSymSetOptions(SYMOPT_UNDNAME | SYMOPT_DEFERRED_LOADS | SYMOPT_EXACT_SYMBOLS);
+    if (!_pfnSymInitialize(hProcess, NULL, TRUE)) {
       _pfnSymGetSymFromAddr64 = NULL;
       _pfnUndecorateSymbolName = NULL;
       ::FreeLibrary(handle);
@@ -70,6 +71,77 @@
       return;
     }
 
+    // set pdb search paths
+    pfn_SymSetSearchPath  _pfn_SymSetSearchPath =
+      (pfn_SymSetSearchPath)::GetProcAddress(handle, "SymSetSearchPath");
+    pfn_SymGetSearchPath  _pfn_SymGetSearchPath =
+      (pfn_SymGetSearchPath)::GetProcAddress(handle, "SymGetSearchPath");
+    if (_pfn_SymSetSearchPath != NULL && _pfn_SymGetSearchPath != NULL) {
+      char paths[MAX_PATH];
+      int  len = sizeof(paths);
+      if (!_pfn_SymGetSearchPath(hProcess, paths, len)) {
+        paths[0] = '\0';
+      } else {
+        // available spaces in path buffer
+        len -= (int)strlen(paths);
+      }
+
+      char tmp_path[MAX_PATH];
+      DWORD dwSize;
+      HMODULE hJVM = ::GetModuleHandle("jvm.dll");
+      tmp_path[0] = '\0';
+      // append the path where jvm.dll is located
+      if (hJVM != NULL && (dwSize = ::GetModuleFileName(hJVM, tmp_path, sizeof(tmp_path))) > 0) {
+        while (dwSize > 0 && tmp_path[dwSize] != '\\') {
+          dwSize --;
+        }
+
+        tmp_path[dwSize] = '\0';
+
+        if (dwSize > 0 && len > (int)dwSize + 1) {
+          strncat(paths, os::path_separator(), 1);
+          strncat(paths, tmp_path, dwSize);
+          len -= dwSize + 1;
+        }
+      }
+
+      // append $JRE/bin. Arguments::get_java_home actually returns $JRE
+      // path
+      char *p = Arguments::get_java_home();
+      assert(p != NULL, "empty java home");
+      size_t java_home_len = strlen(p);
+      if (len > (int)java_home_len + 5) {
+        strncat(paths, os::path_separator(), 1);
+        strncat(paths, p, java_home_len);
+        strncat(paths, "\\bin", 4);
+        len -= (int)(java_home_len + 5);
+      }
+
+      // append $JDK/bin path if it exists
+      assert(java_home_len < MAX_PATH, "Invalid path length");
+      // assume $JRE is under $JDK, construct $JDK/bin path and
+      // see if it exists or not
+      if (strncmp(&p[java_home_len - 3], "jre", 3) == 0) {
+        strncpy(tmp_path, p, java_home_len - 3);
+        tmp_path[java_home_len - 3] = '\0';
+        strncat(tmp_path, "bin", 3);
+
+        // if the directory exists
+        DWORD dwAttrib = GetFileAttributes(tmp_path);
+        if (dwAttrib != INVALID_FILE_ATTRIBUTES &&
+            (dwAttrib & FILE_ATTRIBUTE_DIRECTORY)) {
+          // tmp_path should have the same length as java_home_len, since we only
+          // replaced 'jre' with 'bin'
+          if (len > (int)java_home_len + 1) {
+            strncat(paths, os::path_separator(), 1);
+            strncat(paths, tmp_path, java_home_len);
+          }
+        }
+      }
+
+      _pfn_SymSetSearchPath(hProcess, paths);
+    }
+
      // find out if jvm.dll contains private symbols, by decoding
      // current function and comparing the result
      address addr = (address)Decoder::demangle;
--- a/src/os/windows/vm/decoder_windows.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/os/windows/vm/decoder_windows.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -35,6 +35,8 @@
 typedef BOOL  (WINAPI *pfn_SymInitialize)(HANDLE, PCTSTR, BOOL);
 typedef BOOL  (WINAPI *pfn_SymGetSymFromAddr64)(HANDLE, DWORD64, PDWORD64, PIMAGEHLP_SYMBOL64);
 typedef DWORD (WINAPI *pfn_UndecorateSymbolName)(const char*, char*, DWORD, DWORD);
+typedef BOOL  (WINAPI *pfn_SymSetSearchPath)(HANDLE, PCTSTR);
+typedef BOOL  (WINAPI *pfn_SymGetSearchPath)(HANDLE, PTSTR, int);
 
 class WindowsDecoder : public AbstractDecoder {
 
--- a/src/os_cpu/bsd_x86/vm/vmStructs_bsd_x86.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/os_cpu/bsd_x86/vm/vmStructs_bsd_x86.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -29,37 +29,26 @@
 // constants required by the Serviceability Agent. This file is
 // referenced by vmStructs.cpp.
 
-#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
+#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field) \
                                                                                                                                      \
   /******************************/                                                                                                   \
   /* Threads (NOTE: incomplete) */                                                                                                   \
   /******************************/                                                                                                   \
   nonstatic_field(OSThread,                      _thread_id,                                      OSThread::thread_id_t)             \
-  nonstatic_field(OSThread,                      _pthread_id,                                     pthread_t)                         \
-  /* This must be the last entry, and must be present */                                                                             \
-  last_entry()
+  nonstatic_field(OSThread,                      _pthread_id,                                     pthread_t)
 
 
-#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
+#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type) \
                                                                           \
   /**********************/                                                \
   /* Posix Thread IDs   */                                                \
   /**********************/                                                \
                                                                           \
   declare_unsigned_integer_type(OSThread::thread_id_t)                    \
-  declare_unsigned_integer_type(pthread_t)                                \
-                                                                          \
-  /* This must be the last entry, and must be present */                  \
-  last_entry()
+  declare_unsigned_integer_type(pthread_t)
 
-#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
-                                                                        \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
-#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
-                                                                        \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
 #endif // OS_CPU_BSD_X86_VM_VMSTRUCTS_BSD_X86_HPP
--- a/src/os_cpu/bsd_zero/vm/vmStructs_bsd_zero.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/os_cpu/bsd_zero/vm/vmStructs_bsd_zero.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -30,21 +30,13 @@
 // constants required by the Serviceability Agent. This file is
 // referenced by vmStructs.cpp.
 
-#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field)
 
 
-#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type)
 
-#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
-#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
 #endif // OS_CPU_BSD_ZERO_VM_VMSTRUCTS_BSD_ZERO_HPP
--- a/src/os_cpu/linux_sparc/vm/vmStructs_linux_sparc.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/os_cpu/linux_sparc/vm/vmStructs_linux_sparc.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -29,7 +29,7 @@
 // constants required by the Serviceability Agent. This file is
 // referenced by vmStructs.cpp.
 
-#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
+#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field) \
                                                                                                                                      \
   /******************************/                                                                                                   \
   /* Threads (NOTE: incomplete) */                                                                                                   \
@@ -37,38 +37,27 @@
                                                                                                                                      \
   nonstatic_field(JavaThread,                  _base_of_stack_pointer,                        intptr_t*)                             \
   nonstatic_field(OSThread,                    _thread_id,                                    OSThread::thread_id_t)                 \
-  nonstatic_field(OSThread,                    _pthread_id,                                   pthread_t)                             \
-  /* This must be the last entry, and must be present */                                                                             \
-  last_entry()
+  nonstatic_field(OSThread,                    _pthread_id,                                   pthread_t)
 
 
-#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
+#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type) \
                                                                           \
   /**********************/                                                \
   /* POSIX Thread IDs */                                                  \
   /**********************/                                                \
                                                                           \
   declare_integer_type(OSThread::thread_id_t)                             \
-  declare_unsigned_integer_type(pthread_t)                                \
-                                                                          \
-  /* This must be the last entry, and must be present */                  \
-  last_entry()
+  declare_unsigned_integer_type(pthread_t)
 
 
-#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
+#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant) \
                                                                         \
   /************************/                                            \
   /* JavaThread constants */                                            \
   /************************/                                            \
                                                                         \
-  declare_constant(JavaFrameAnchor::flushed)                            \
-                                                                        \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+  declare_constant(JavaFrameAnchor::flushed)
 
-#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
-                                                                        \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
 #endif // OS_CPU_LINUX_SPARC_VM_VMSTRUCTS_LINUX_SPARC_HPP
--- a/src/os_cpu/linux_x86/vm/vmStructs_linux_x86.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/os_cpu/linux_x86/vm/vmStructs_linux_x86.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -29,37 +29,26 @@
 // constants required by the Serviceability Agent. This file is
 // referenced by vmStructs.cpp.
 
-#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
+#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field) \
                                                                                                                                      \
   /******************************/                                                                                                   \
   /* Threads (NOTE: incomplete) */                                                                                                   \
   /******************************/                                                                                                   \
   nonstatic_field(OSThread,                      _thread_id,                                      OSThread::thread_id_t)             \
-  nonstatic_field(OSThread,                      _pthread_id,                                     pthread_t)                         \
-  /* This must be the last entry, and must be present */                                                                             \
-  last_entry()
+  nonstatic_field(OSThread,                      _pthread_id,                                     pthread_t)
 
 
-#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
+#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type) \
                                                                           \
   /**********************/                                                \
   /* Posix Thread IDs   */                                                \
   /**********************/                                                \
                                                                           \
   declare_integer_type(OSThread::thread_id_t)                             \
-  declare_unsigned_integer_type(pthread_t)                                \
-                                                                          \
-  /* This must be the last entry, and must be present */                  \
-  last_entry()
+  declare_unsigned_integer_type(pthread_t)
 
-#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
-                                                                        \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
-#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
-                                                                        \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
 #endif // OS_CPU_LINUX_X86_VM_VMSTRUCTS_LINUX_X86_HPP
--- a/src/os_cpu/linux_zero/vm/vmStructs_linux_zero.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/os_cpu/linux_zero/vm/vmStructs_linux_zero.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -30,21 +30,12 @@
 // constants required by the Serviceability Agent. This file is
 // referenced by vmStructs.cpp.
 
-#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field)
 
+#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type)
 
-#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
-#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
-
-#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
 #endif // OS_CPU_LINUX_ZERO_VM_VMSTRUCTS_LINUX_ZERO_HPP
--- a/src/os_cpu/solaris_sparc/vm/vmStructs_solaris_sparc.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/os_cpu/solaris_sparc/vm/vmStructs_solaris_sparc.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -29,44 +29,32 @@
 // constants required by the Serviceability Agent. This file is
 // referenced by vmStructs.cpp.
 
-#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
+#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field) \
                                                                                                                                      \
   /******************************/                                                                                                   \
   /* Threads (NOTE: incomplete) */                                                                                                   \
   /******************************/                                                                                                   \
                                                                                                                                      \
   nonstatic_field(JavaThread,                  _base_of_stack_pointer,                        intptr_t*)                             \
-  nonstatic_field(OSThread,                    _thread_id,                                    OSThread::thread_id_t)                 \
-  /* This must be the last entry, and must be present */                                                                             \
-  last_entry()
+  nonstatic_field(OSThread,                    _thread_id,                                    OSThread::thread_id_t)
 
-
-#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
+#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type) \
                                                                           \
   /**********************/                                                \
   /* Solaris Thread IDs */                                                \
   /**********************/                                                \
                                                                           \
-  declare_unsigned_integer_type(OSThread::thread_id_t)                    \
-                                                                          \
-  /* This must be the last entry, and must be present */                  \
-  last_entry()
+  declare_unsigned_integer_type(OSThread::thread_id_t)
 
 
-#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
+#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant) \
                                                                         \
   /************************/                                            \
   /* JavaThread constants */                                            \
   /************************/                                            \
                                                                         \
-  declare_constant(JavaFrameAnchor::flushed)                            \
-                                                                        \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+  declare_constant(JavaFrameAnchor::flushed)
 
-#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
-                                                                        \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
 #endif // OS_CPU_SOLARIS_SPARC_VM_VMSTRUCTS_SOLARIS_SPARC_HPP
--- a/src/os_cpu/solaris_x86/vm/vmStructs_solaris_x86.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/os_cpu/solaris_x86/vm/vmStructs_solaris_x86.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -29,36 +29,24 @@
 // constants required by the Serviceability Agent. This file is
 // referenced by vmStructs.cpp.
 
-#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
+#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field) \
                                                                                                                                      \
   /******************************/                                                                                                   \
   /* Threads (NOTE: incomplete) */                                                                                                   \
   /******************************/                                                                                                   \
                                                                                                                                      \
-  nonstatic_field(OSThread,                      _thread_id,                                    OSThread::thread_id_t)               \
-                                                                                                                                     \
-  /* This must be the last entry, and must be present */                                                                             \
-  last_entry()
+  nonstatic_field(OSThread,                      _thread_id,                                    OSThread::thread_id_t)
 
-#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
+#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type) \
                                                                           \
   /**********************/                                                \
   /* Solaris Thread IDs */                                                \
   /**********************/                                                \
                                                                           \
-  declare_unsigned_integer_type(OSThread::thread_id_t)                    \
-                                                                          \
-  /* This must be the last entry, and must be present */                  \
-  last_entry()
+  declare_unsigned_integer_type(OSThread::thread_id_t)
 
-#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
-                                                                        \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
-#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
-                                                                        \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
 #endif // OS_CPU_SOLARIS_X86_VM_VMSTRUCTS_SOLARIS_X86_HPP
--- a/src/os_cpu/windows_x86/vm/vmStructs_windows_x86.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/os_cpu/windows_x86/vm/vmStructs_windows_x86.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -29,32 +29,21 @@
 // constants required by the Serviceability Agent. This file is
 // referenced by vmStructs.cpp.
 
-#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
+#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field) \
                                                                                                                                      \
   /******************************/                                                                                                   \
   /* Threads (NOTE: incomplete) */                                                                                                   \
   /******************************/                                                                                                   \
                                                                                                                                      \
   nonstatic_field(OSThread,                    _thread_id,                                    OSThread::thread_id_t)                 \
-  unchecked_nonstatic_field(OSThread,          _thread_handle,                                sizeof(HANDLE)) /* NOTE: no type */    \
-                                                                                                                                     \
-  /* This must be the last entry, and must be present */                                                                             \
-  last_entry()
+  unchecked_nonstatic_field(OSThread,          _thread_handle,                                sizeof(HANDLE)) /* NOTE: no type */
 
-#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
+#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type) \
                                                                           \
-  declare_unsigned_integer_type(OSThread::thread_id_t)                    \
-  /* This must be the last entry, and must be present */                  \
-  last_entry()
+  declare_unsigned_integer_type(OSThread::thread_id_t)
 
-#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
-                                                                        \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
-#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
-                                                                        \
-  /* This must be the last entry, and must be present */                \
-  last_entry()
+#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
 
 #endif // OS_CPU_WINDOWS_X86_VM_VMSTRUCTS_WINDOWS_X86_HPP
--- a/src/share/vm/classfile/classFileParser.cpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/classfile/classFileParser.cpp	Wed Jan 16 18:23:37 2013 -0500
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -59,6 +59,7 @@
 #include "services/classLoadingService.hpp"
 #include "services/threadService.hpp"
 #include "utilities/array.hpp"
+#include "utilities/globalDefinitions.hpp"
 
 // We generally try to create the oops directly when parsing, rather than
 // allocating temporary data structures and copying the bytes twice. A
@@ -970,6 +971,12 @@
         runtime_visible_annotations_length = attribute_length;
         runtime_visible_annotations = cfs->get_u1_buffer();
         assert(runtime_visible_annotations != NULL, "null visible annotations");
+        parse_annotations(loader_data,
+                          runtime_visible_annotations,
+                          runtime_visible_annotations_length,
+                          cp,
+                          parsed_annotations,
+                          CHECK);
         cfs->skip_u1(runtime_visible_annotations_length, CHECK);
       } else if (PreserveAllAnnotations && attribute_name == vmSymbols::tag_runtime_invisible_annotations()) {
         runtime_invisible_annotations_length = attribute_length;
@@ -1216,19 +1223,16 @@
     field->initialize(access_flags.as_short(),
                       name_index,
                       signature_index,
-                      constantvalue_index,
-                      0);
+                      constantvalue_index);
+    BasicType type = cp->basic_type_for_signature_at(signature_index);
+
+    // Remember how many oops we encountered and compute allocation type
+    FieldAllocationType atype = fac->update(is_static, type);
+    field->set_allocation_type(atype);
+
+    // After field is initialized with type, we can augment it with aux info
     if (parsed_annotations.has_any_annotations())
       parsed_annotations.apply_to(field);
-
-    BasicType type = cp->basic_type_for_signature_at(signature_index);
-
-    // Remember how many oops we encountered and compute allocation type
-    FieldAllocationType atype = fac->update(is_static, type);
-
-    // The correct offset is computed later (all oop fields will be located together)
-    // We temporarily store the allocation type in the offset field
-    field->set_offset(atype);
   }
 
   int index = length;
@@ -1259,17 +1263,13 @@
       field->initialize(JVM_ACC_FIELD_INTERNAL,
                         injected[n].name_index,
                         injected[n].signature_index,
-                        0,
                         0);
 
       BasicType type = FieldType::basic_type(injected[n].signature());
 
       // Remember how many oops we encountered and compute allocation type
       FieldAllocationType atype = fac->update(false, type);
-
-      // The correct offset is computed later (all oop fields will be located together)
-      // We temporarily store the allocation type in the offset field
-      field->set_offset(atype);
+      field->set_allocation_type(atype);
       index++;
     }
   }
@@ -1735,7 +1735,8 @@
 }
 
 // Sift through annotations, looking for those significant to the VM:
-void ClassFileParser::parse_annotations(u1* buffer, int limit,
+void ClassFileParser::parse_annotations(ClassLoaderData* loader_data,
+                                        u1* buffer, int limit,
                                         constantPoolHandle cp,
                                         ClassFileParser::AnnotationCollector* coll,
                                         TRAPS) {
@@ -1752,9 +1753,12 @@
       e_type_off = 7,   // utf8 such as 'Ljava/lang/annotation/RetentionPolicy;'
       e_con_off = 9,    // utf8 payload, such as 'SOURCE', 'CLASS', 'RUNTIME'
       e_size = 11,     // end of 'e' annotation
-    c_tag_val = 'c',
-      c_con_off = 7,    // utf8 payload, such as 'I' or 'Ljava/lang/String;'
+    c_tag_val = 'c',    // payload is type
+      c_con_off = 7,    // utf8 payload, such as 'I'
       c_size = 9,       // end of 'c' annotation
+    s_tag_val = 's',    // payload is String
+      s_con_off = 7,    // utf8 payload, such as 'Ljava/lang/String;'
+      s_size = 9,
     min_size = 6        // smallest possible size (zero members)
   };
   while ((--nann) >= 0 && (index-2 + min_size <= limit)) {
@@ -1773,57 +1777,65 @@
     }
 
     // Here is where parsing particular annotations will take place.
-    AnnotationCollector::ID id = coll->annotation_index(aname);
+    AnnotationCollector::ID id = coll->annotation_index(loader_data, aname);
     if (id == AnnotationCollector::_unknown)  continue;
     coll->set_annotation(id);
-    // If there are no values, just set the bit and move on:
-    if (count == 0)   continue;
-
-    // For the record, here is how annotation payloads can be collected.
-    // Suppose we want to capture @Retention.value.  Here is how:
-    //if (id == AnnotationCollector::_class_Retention) {
-    //  Symbol* payload = NULL;
-    //  if (count == 1
-    //      && e_size == (index0 - index)  // match size
-    //      && e_tag_val == *(abase + tag_off)
-    //      && (check_symbol_at(cp, Bytes::get_Java_u2(abase + e_type_off))
-    //          == vmSymbols::RetentionPolicy_signature())
-    //      && member == vmSymbols::value_name()) {
-    //    payload = check_symbol_at(cp, Bytes::get_Java_u2(abase + e_con_off));
-    //  }
-    //  check_property(payload != NULL,
-    //                 "Invalid @Retention annotation at offset %u in class file %s",
-    //                 index0, CHECK);
-    //  if (payload != NULL) {
-    //      payload->increment_refcount();
-    //      coll->_class_RetentionPolicy = payload;
-    //  }
-    //}
+
+    if (id == AnnotationCollector::_sun_misc_Contended) {
+      if (count == 1
+          && s_size == (index - index0)  // match size
+          && s_tag_val == *(abase + tag_off)
+          && member == vmSymbols::value_name()) {
+        u2 group_index = Bytes::get_Java_u2(abase + s_con_off);
+        coll->set_contended_group(group_index);
+      } else {
+        coll->set_contended_group(0); // default contended group
+      }
+      coll->set_contended(true);
+    } else {
+      coll->set_contended(false);
+    }
   }
 }
 
-ClassFileParser::AnnotationCollector::ID ClassFileParser::AnnotationCollector::annotation_index(Symbol* name) {
+ClassFileParser::AnnotationCollector::ID
+ClassFileParser::AnnotationCollector::annotation_index(ClassLoaderData* loader_data,
+                                                                Symbol* name) {
   vmSymbols::SID sid = vmSymbols::find_sid(name);
+  bool privileged = false;
+  if (loader_data->is_the_null_class_loader_data()) {
+    // Privileged code can use all annotations.  Other code silently drops some.
+    privileged = true;
+  }
   switch (sid) {
   case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_ForceInline_signature):
     if (_location != _in_method)  break;  // only allow for methods
+    if (!privileged)              break;  // only allow in privileged code
     return _method_ForceInline;
   case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_DontInline_signature):
     if (_location != _in_method)  break;  // only allow for methods
+    if (!privileged)              break;  // only allow in privileged code
     return _method_DontInline;
   case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_LambdaForm_Compiled_signature):
     if (_location != _in_method)  break;  // only allow for methods
+    if (!privileged)              break;  // only allow in privileged code
     return _method_LambdaForm_Compiled;
   case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_LambdaForm_Hidden_signature):
     if (_location != _in_method)  break;  // only allow for methods
+    if (!privileged)              break;  // only allow in privileged code
     return _method_LambdaForm_Hidden;
+  case vmSymbols::VM_SYMBOL_ENUM_NAME(sun_misc_Contended_signature):
+    if (_location != _in_field && _location != _in_class)          break;  // only allow for fields and classes
+    if (!EnableContended || (RestrictContended && !privileged))    break;  // honor privileges
+    return _sun_misc_Contended;
   default: break;
   }
   return AnnotationCollector::_unknown;
 }
 
 void ClassFileParser::FieldAnnotationCollector::apply_to(FieldInfo* f) {
-  fatal("no field annotations yet");
+  if (is_contended())
+    f->set_contended_group(contended_group());
 }
 
 void ClassFileParser::MethodAnnotationCollector::apply_to(methodHandle m) {
@@ -1838,7 +1850,7 @@
 }
 
 void ClassFileParser::ClassAnnotationCollector::apply_to(instanceKlassHandle k) {
-  fatal("no class annotations yet");
+  k->set_is_contended(is_contended());
 }
 
 
@@ -2148,9 +2160,21 @@
                                      cp, CHECK_(nullHandle));
     } else if (method_attribute_name == vmSymbols::tag_method_parameters()) {
       method_parameters_length = cfs->get_u1_fast();
+      // Track the actual size (note: this is written for clarity; a
+      // decent compiler will CSE and constant-fold this into a single
+      // expression)
+      u2 actual_size = 1;
       method_parameters_data = cfs->get_u1_buffer();
+      actual_size += 2 * method_parameters_length;
       cfs->skip_u2_fast(method_parameters_length);
+      actual_size += 4 * method_parameters_length;
       cfs->skip_u4_fast(method_parameters_length);
+      // Enforce attribute length
+      if (method_attribute_length != actual_size) {
+        classfile_parse_error(
+          "Invalid MethodParameters method attribute length %u in class file %s",
+          method_attribute_length, CHECK_(nullHandle));
+      }
       // ignore this attribute if it cannot be reflected
       if (!SystemDictionary::Parameter_klass_loaded())
         method_parameters_length = 0;
@@ -2181,7 +2205,8 @@
         runtime_visible_annotations_length = method_attribute_length;
         runtime_visible_annotations = cfs->get_u1_buffer();
         assert(runtime_visible_annotations != NULL, "null visible annotations");
-        parse_annotations(runtime_visible_annotations,
+        parse_annotations(loader_data,
+            runtime_visible_annotations,
             runtime_visible_annotations_length, cp, &parsed_annotations,
             CHECK_(nullHandle));
         cfs->skip_u1(runtime_visible_annotations_length, CHECK_(nullHandle));
@@ -2297,7 +2322,10 @@
       elem[i].name_cp_index =
         Bytes::get_Java_u2(method_parameters_data);
       method_parameters_data += 2;
-      elem[i].flags = Bytes::get_Java_u4(method_parameters_data);
+      u4 flags = Bytes::get_Java_u4(method_parameters_data);
+      // This caused an alignment fault on Sparc, if flags was a u4
+      elem[i].flags_lo = extract_low_short_from_int(flags);
+      elem[i].flags_hi = extract_high_short_from_int(flags);
       method_parameters_data += 4;
     }
   }
@@ -2886,7 +2914,8 @@
         runtime_visible_annotations_length = attribute_length;
         runtime_visible_annotations = cfs->get_u1_buffer();
         assert(runtime_visible_annotations != NULL, "null visible annotations");
-        parse_annotations(runtime_visible_annotations,
+        parse_annotations(loader_data,
+                          runtime_visible_annotations,
                           runtime_visible_annotations_length,
                           cp,
                           parsed_annotations,
@@ -3405,18 +3434,21 @@
     // Size of Java itable (in words)
     itable_size = access_flags.is_interface() ? 0 : klassItable::compute_itable_size(transitive_interfaces);
 
+    // get the padding width from the option
+    // TODO: Ask VM about specific CPU we are running on
+    int pad_size = ContendedPaddingWidth;
+
     // Field size and offset computation
     int nonstatic_field_size = super_klass() == NULL ? 0 : super_klass->nonstatic_field_size();
 #ifndef PRODUCT
     int orig_nonstatic_field_size = 0;
 #endif
-    int static_field_size = 0;
     int next_static_oop_offset;
     int next_static_double_offset;
     int next_static_word_offset;
     int next_static_short_offset;
     int next_static_byte_offset;
-    int next_static_type_offset;
+    int next_static_padded_offset;
     int next_nonstatic_oop_offset;
     int next_nonstatic_double_offset;
     int next_nonstatic_word_offset;
@@ -3426,11 +3458,36 @@
     int first_nonstatic_oop_offset;
     int first_nonstatic_field_offset;
     int next_nonstatic_field_offset;
+    int next_nonstatic_padded_offset;
+
+    // Count the contended fields by type.
+    int static_contended_count = 0;
+    int nonstatic_contended_count = 0;
+    FieldAllocationCount fac_contended;
+    for (AllFieldStream fs(fields, cp); !fs.done(); fs.next()) {
+      FieldAllocationType atype = (FieldAllocationType) fs.allocation_type();
+      if (fs.is_contended()) {
+        fac_contended.count[atype]++;
+        if (fs.access_flags().is_static()) {
+          static_contended_count++;
+        } else {
+          nonstatic_contended_count++;
+        }
+      }
+    }
+    int contended_count = static_contended_count + nonstatic_contended_count;
+
 
     // Calculate the starting byte offsets
     next_static_oop_offset      = InstanceMirrorKlass::offset_of_static_fields();
+
+    // class is contended, pad before all the fields
+    if (parsed_annotations.is_contended()) {
+      next_static_oop_offset += pad_size;
+    }
+
     next_static_double_offset   = next_static_oop_offset +
-                                  (fac.count[STATIC_OOP] * heapOopSize);
+                                  ((fac.count[STATIC_OOP] - fac_contended.count[STATIC_OOP]) * heapOopSize);
     if ( fac.count[STATIC_DOUBLE] &&
          (Universe::field_type_should_be_aligned(T_DOUBLE) ||
           Universe::field_type_should_be_aligned(T_LONG)) ) {
@@ -3438,25 +3495,29 @@
     }
 
     next_static_word_offset     = next_static_double_offset +
-                                  (fac.count[STATIC_DOUBLE] * BytesPerLong);
+                                  ((fac.count[STATIC_DOUBLE] - fac_contended.count[STATIC_DOUBLE]) * BytesPerLong);
     next_static_short_offset    = next_static_word_offset +
-                                  (fac.count[STATIC_WORD] * BytesPerInt);
+                                  ((fac.count[STATIC_WORD]   - fac_contended.count[STATIC_WORD]) * BytesPerInt);
     next_static_byte_offset     = next_static_short_offset +
-                                  (fac.count[STATIC_SHORT] * BytesPerShort);
-    next_static_type_offset     = align_size_up((next_static_byte_offset +
-                                  fac.count[STATIC_BYTE] ), wordSize );
-    static_field_size           = (next_static_type_offset -
-                                  next_static_oop_offset) / wordSize;
+                                  ((fac.count[STATIC_SHORT]  - fac_contended.count[STATIC_SHORT]) * BytesPerShort);
+    next_static_padded_offset   = next_static_byte_offset +
+                                  ((fac.count[STATIC_BYTE]   - fac_contended.count[STATIC_BYTE]) * 1);
 
     first_nonstatic_field_offset = instanceOopDesc::base_offset_in_bytes() +
                                    nonstatic_field_size * heapOopSize;
+
+    // class is contended, pad before all the fields
+    if (parsed_annotations.is_contended()) {
+      first_nonstatic_field_offset += pad_size;
+    }
+
     next_nonstatic_field_offset = first_nonstatic_field_offset;
 
-    unsigned int nonstatic_double_count = fac.count[NONSTATIC_DOUBLE];
-    unsigned int nonstatic_word_count   = fac.count[NONSTATIC_WORD];
-    unsigned int nonstatic_short_count  = fac.count[NONSTATIC_SHORT];
-    unsigned int nonstatic_byte_count   = fac.count[NONSTATIC_BYTE];
-    unsigned int nonstatic_oop_count    = fac.count[NONSTATIC_OOP];
+    unsigned int nonstatic_double_count = fac.count[NONSTATIC_DOUBLE] - fac_contended.count[NONSTATIC_DOUBLE];
+    unsigned int nonstatic_word_count   = fac.count[NONSTATIC_WORD]   - fac_contended.count[NONSTATIC_WORD];
+    unsigned int nonstatic_short_count  = fac.count[NONSTATIC_SHORT]  - fac_contended.count[NONSTATIC_SHORT];
+    unsigned int nonstatic_byte_count   = fac.count[NONSTATIC_BYTE]   - fac_contended.count[NONSTATIC_BYTE];
+    unsigned int nonstatic_oop_count    = fac.count[NONSTATIC_OOP]    - fac_contended.count[NONSTATIC_OOP];
 
     bool super_has_nonstatic_fields =
             (super_klass() != NULL && super_klass->has_nonstatic_fields());
@@ -3529,12 +3590,12 @@
     }
 
     if( allocation_style == 0 ) {
-      // Fields order: oops, longs/doubles, ints, shorts/chars, bytes
+      // Fields order: oops, longs/doubles, ints, shorts/chars, bytes, padded fields
       next_nonstatic_oop_offset    = next_nonstatic_field_offset;
       next_nonstatic_double_offset = next_nonstatic_oop_offset +
                                       (nonstatic_oop_count * heapOopSize);
     } else if( allocation_style == 1 ) {
-      // Fields order: longs/doubles, ints, shorts/chars, bytes, oops
+      // Fields order: longs/doubles, ints, shorts/chars, bytes, oops, padded fields
       next_nonstatic_double_offset = next_nonstatic_field_offset;
     } else if( allocation_style == 2 ) {
       // Fields allocation: oops fields in super and sub classes are together.
@@ -3613,27 +3674,33 @@
                                   (nonstatic_word_count * BytesPerInt);
     next_nonstatic_byte_offset  = next_nonstatic_short_offset +
                                   (nonstatic_short_count * BytesPerShort);
-
-    int notaligned_offset;
-    if( allocation_style == 0 ) {
-      notaligned_offset = next_nonstatic_byte_offset + nonstatic_byte_count;
-    } else { // allocation_style == 1
-      next_nonstatic_oop_offset = next_nonstatic_byte_offset + nonstatic_byte_count;
+    next_nonstatic_padded_offset = next_nonstatic_byte_offset +
+                                  nonstatic_byte_count;
+
+    // let oops jump before padding with this allocation style
+    if( allocation_style == 1 ) {
+      next_nonstatic_oop_offset = next_nonstatic_padded_offset;
       if( nonstatic_oop_count > 0 ) {
         next_nonstatic_oop_offset = align_size_up(next_nonstatic_oop_offset, heapOopSize);
       }
-      notaligned_offset = next_nonstatic_oop_offset + (nonstatic_oop_count * heapOopSize);
+      next_nonstatic_padded_offset = next_nonstatic_oop_offset + (nonstatic_oop_count * heapOopSize);
     }
-    next_nonstatic_type_offset = align_size_up(notaligned_offset, heapOopSize );
-    nonstatic_field_size = nonstatic_field_size + ((next_nonstatic_type_offset
-                                   - first_nonstatic_field_offset)/heapOopSize);
 
     // Iterate over fields again and compute correct offsets.
     // The field allocation type was temporarily stored in the offset slot.
     // oop fields are located before non-oop fields (static and non-static).
     for (AllFieldStream fs(fields, cp); !fs.done(); fs.next()) {
+
+      // skip already laid out fields
+      if (fs.is_offset_set()) continue;
+
+      // contended fields are handled below
+      if (fs.is_contended()) continue;
+
       int real_offset;
-      FieldAllocationType atype = (FieldAllocationType) fs.offset();
+      FieldAllocationType atype = (FieldAllocationType) fs.allocation_type();
+
+      // pack the rest of the fields
       switch (atype) {
         case STATIC_OOP:
           real_offset = next_static_oop_offset;
@@ -3722,13 +3789,225 @@
       fs.set_offset(real_offset);
     }
 
+
+    // Handle the contended cases.
+    //
+    // Each contended field should not intersect the cache line with another contended field.
+    // In the absence of alignment information, we end up with pessimistically separating
+    // the fields with full-width padding.
+    //
+    // Additionally, this should not break alignment for the fields, so we round the alignment up
+    // for each field.
+    if (contended_count > 0) {
+
+      // if there is at least one contended field, we need to have pre-padding for them
+      if (nonstatic_contended_count > 0) {
+        next_nonstatic_padded_offset += pad_size;
+      }
+
+      // collect all contended groups
+      BitMap bm(cp->size());
+      for (AllFieldStream fs(fields, cp); !fs.done(); fs.next()) {
+        // skip already laid out fields
+        if (fs.is_offset_set()) continue;
+
+        if (fs.is_contended()) {
+          bm.set_bit(fs.contended_group());
+        }
+      }
+
+      int current_group = -1;
+      while ((current_group = (int)bm.get_next_one_offset(current_group + 1)) != (int)bm.size()) {
+
+        for (AllFieldStream fs(fields, cp); !fs.done(); fs.next()) {
+
+          // skip already laid out fields
+          if (fs.is_offset_set()) continue;
+
+          // skip non-contended fields and fields from different group
+          if (!fs.is_contended() || (fs.contended_group() != current_group)) continue;
+
+          // handle statics below
+          if (fs.access_flags().is_static()) continue;
+
+          int real_offset;
+          FieldAllocationType atype = (FieldAllocationType) fs.allocation_type();
+
+          switch (atype) {
+            case NONSTATIC_BYTE:
+              next_nonstatic_padded_offset = align_size_up(next_nonstatic_padded_offset, 1);
+              real_offset = next_nonstatic_padded_offset;
+              next_nonstatic_padded_offset += 1;
+              break;
+
+            case NONSTATIC_SHORT:
+              next_nonstatic_padded_offset = align_size_up(next_nonstatic_padded_offset, BytesPerShort);
+              real_offset = next_nonstatic_padded_offset;
+              next_nonstatic_padded_offset += BytesPerShort;
+              break;
+
+            case NONSTATIC_WORD:
+              next_nonstatic_padded_offset = align_size_up(next_nonstatic_padded_offset, BytesPerInt);
+              real_offset = next_nonstatic_padded_offset;
+              next_nonstatic_padded_offset += BytesPerInt;
+              break;
+
+            case NONSTATIC_DOUBLE:
+              next_nonstatic_padded_offset = align_size_up(next_nonstatic_padded_offset, BytesPerLong);
+              real_offset = next_nonstatic_padded_offset;
+              next_nonstatic_padded_offset += BytesPerLong;
+              break;
+
+            case NONSTATIC_OOP:
+              next_nonstatic_padded_offset = align_size_up(next_nonstatic_padded_offset, heapOopSize);
+              real_offset = next_nonstatic_padded_offset;
+              next_nonstatic_padded_offset += heapOopSize;
+
+              // Create new oop map
+              nonstatic_oop_offsets[nonstatic_oop_map_count] = real_offset;
+              nonstatic_oop_counts [nonstatic_oop_map_count] = 1;
+              nonstatic_oop_map_count += 1;
+              if( first_nonstatic_oop_offset == 0 ) { // Undefined
+                first_nonstatic_oop_offset = real_offset;
+              }
+              break;
+
+            default:
+              ShouldNotReachHere();
+          }
+
+          if (fs.contended_group() == 0) {
+            // Contended group defines the equivalence class over the fields:
+            // the fields within the same contended group are not inter-padded.
+            // The only exception is default group, which does not incur the
+            // equivalence, and so requires intra-padding.
+            next_nonstatic_padded_offset += pad_size;
+          }
+
+          fs.set_offset(real_offset);
+        } // for
+
+        // Start laying out the next group.
+        // Note that this will effectively pad the last group in the back;
+        // this is expected to alleviate memory contention effects for
+        // subclass fields and/or adjacent object.
+        // If this was the default group, the padding is already in place.
+        if (current_group != 0) {
+          next_nonstatic_padded_offset += pad_size;
+        }
+      }
+
+      // handle static fields
+
+      // if there is at least one contended field, we need to have pre-padding for them
+      if (static_contended_count > 0) {
+        next_static_padded_offset += pad_size;
+      }
+
+      current_group = -1;
+      while ((current_group = (int)bm.get_next_one_offset(current_group + 1)) != (int)bm.size()) {
+
+        for (AllFieldStream fs(fields, cp); !fs.done(); fs.next()) {
+
+          // skip already laid out fields
+          if (fs.is_offset_set()) continue;
+
+          // skip non-contended fields and fields from different group
+          if (!fs.is_contended() || (fs.contended_group() != current_group)) continue;
+
+          // non-statics already handled above
+          if (!fs.access_flags().is_static()) continue;
+
+          int real_offset;
+          FieldAllocationType atype = (FieldAllocationType) fs.allocation_type();
+
+          switch (atype) {
+
+            case STATIC_BYTE:
+              next_static_padded_offset = align_size_up(next_static_padded_offset, 1);
+              real_offset = next_static_padded_offset;
+              next_static_padded_offset += 1;
+              break;
+
+            case STATIC_SHORT:
+              next_static_padded_offset = align_size_up(next_static_padded_offset, BytesPerShort);
+              real_offset = next_static_padded_offset;
+              next_static_padded_offset += BytesPerShort;
+              break;
+
+            case STATIC_WORD:
+              next_static_padded_offset = align_size_up(next_static_padded_offset, BytesPerInt);
+              real_offset = next_static_padded_offset;
+              next_static_padded_offset += BytesPerInt;
+              break;
+
+            case STATIC_DOUBLE:
+              next_static_padded_offset = align_size_up(next_static_padded_offset, BytesPerLong);
+              real_offset = next_static_padded_offset;
+              next_static_padded_offset += BytesPerLong;
+              break;
+
+            case STATIC_OOP:
+              next_static_padded_offset = align_size_up(next_static_padded_offset, heapOopSize);
+              real_offset = next_static_padded_offset;
+              next_static_padded_offset += heapOopSize;
+              break;
+
+            default:
+              ShouldNotReachHere();
+          }
+
+          if (fs.contended_group() == 0) {
+            // Contended group defines the equivalence class over the fields:
+            // the fields within the same contended group are not inter-padded.
+            // The only exception is default group, which does not incur the
+            // equivalence, and so requires intra-padding.
+            next_static_padded_offset += pad_size;
+          }
+
+          fs.set_offset(real_offset);
+        } // for
+
+        // Start laying out the next group.
+        // Note that this will effectively pad the last group in the back;
+        // this is expected to alleviate memory contention effects for
+        // subclass fields and/or adjacent object.
+        // If this was the default group, the padding is already in place.
+        if (current_group != 0) {
+          next_static_padded_offset += pad_size;
+        }
+
+      }
+
+    } // handle contended
+
     // Size of instances
     int instance_size;
 
+    int notaligned_offset = next_nonstatic_padded_offset;
+
+    // Entire class is contended, pad in the back.
+    // This helps to alleviate memory contention effects for subclass fields
+    // and/or adjacent object.
+    if (parsed_annotations.is_contended()) {
+      notaligned_offset += pad_size;
+      next_static_padded_offset += pad_size;
+    }
+
+    int next_static_type_offset     = align_size_up(next_static_padded_offset, wordSize);
+    int static_field_size           = (next_static_type_offset -
+                                  InstanceMirrorKlass::offset_of_static_fields()) / wordSize;
+
+    next_nonstatic_type_offset = align_size_up(notaligned_offset, heapOopSize );
+    nonstatic_field_size = nonstatic_field_size + ((next_nonstatic_type_offset
+                                   - first_nonstatic_field_offset)/heapOopSize);
+
     next_nonstatic_type_offset = align_size_up(notaligned_offset, wordSize );
     instance_size = align_object_size(next_nonstatic_type_offset / wordSize);
 
-    assert(instance_size == align_object_size(align_size_up((instanceOopDesc::base_offset_in_bytes() + nonstatic_field_size*heapOopSize), wordSize) / wordSize), "consistent layout helper value");
+    assert(instance_size == align_object_size(align_size_up(
+                (instanceOopDesc::base_offset_in_bytes() + nonstatic_field_size*heapOopSize + ((parsed_annotations.is_contended()) ? pad_size : 0)),
+            wordSize) / wordSize), "consistent layout helper value");
 
     // Number of non-static oop map blocks allocated at end of klass.
     const unsigned int total_oop_map_count =
@@ -3912,7 +4191,10 @@
 
     // check that if this class is an interface then it doesn't have static methods
     if (this_klass->is_interface()) {
-      check_illegal_static_method(this_klass, CHECK_(nullHandle));
+      /* An interface in a JAVA 8 classfile can be static */
+      if (_major_version < JAVA_8_VERSION) {
+        check_illegal_static_method(this_klass, CHECK_(nullHandle));
+      }
     }
 
 
@@ -4005,6 +4287,18 @@
     }
 #endif
 
+#ifndef PRODUCT
+    if (PrintFieldLayout) {
+      print_field_layout(name,
+            fields,
+            cp,
+            instance_size,
+            first_nonstatic_field_offset,
+            next_nonstatic_field_offset,
+            next_static_type_offset);
+    }
+#endif
+
     // preserve result across HandleMark
     preserve_this_klass = this_klass();
   }
@@ -4017,6 +4311,38 @@
   return this_klass;
 }
 
+void ClassFileParser::print_field_layout(Symbol* name,
+                                         Array<u2>* fields,
+                                         constantPoolHandle cp,
+                                         int instance_size,
+                                         int instance_fields_start,
+                                         int instance_fields_end,
+                                         int static_fields_end) {
+  tty->print("%s: field layout\n", name->as_klass_external_name());
+  tty->print("  @%3d %s\n", instance_fields_start, "--- instance fields start ---");
+  for (AllFieldStream fs(fields, cp); !fs.done(); fs.next()) {
+    if (!fs.access_flags().is_static()) {
+      tty->print("  @%3d \"%s\" %s\n",
+          fs.offset(),
+          fs.name()->as_klass_external_name(),
+          fs.signature()->as_klass_external_name());
+    }
+  }
+  tty->print("  @%3d %s\n", instance_fields_end, "--- instance fields end ---");
+  tty->print("  @%3d %s\n", instance_size * wordSize, "--- instance ends ---");
+  tty->print("  @%3d %s\n", InstanceMirrorKlass::offset_of_static_fields(), "--- static fields start ---");
+  for (AllFieldStream fs(fields, cp); !fs.done(); fs.next()) {
+    if (fs.access_flags().is_static()) {
+      tty->print("  @%3d \"%s\" %s\n",
+          fs.offset(),
+          fs.name()->as_klass_external_name(),
+          fs.signature()->as_klass_external_name());
+    }
+  }
+  tty->print("  @%3d %s\n", static_fields_end, "--- static fields end ---");
+  tty->print("\n");
+}
+
 unsigned int
 ClassFileParser::compute_oop_map_count(instanceKlassHandle super,
                                        unsigned int nonstatic_oop_map_count,
@@ -4466,6 +4792,7 @@
   const bool is_bridge       = (flags & JVM_ACC_BRIDGE)       != 0;
   const bool is_strict       = (flags & JVM_ACC_STRICT)       != 0;
   const bool is_synchronized = (flags & JVM_ACC_SYNCHRONIZED) != 0;
+  const bool is_protected    = (flags & JVM_ACC_PROTECTED)    != 0;
   const bool major_gte_15    = _major_version >= JAVA_1_5_VERSION;
   const bool major_gte_8     = _major_version >= JAVA_8_VERSION;
   const bool is_initializer  = (name == vmSymbols::object_initializer_name());
@@ -4473,11 +4800,33 @@
   bool is_illegal = false;
 
   if (is_interface) {
-    if (!is_public || is_static || is_final || is_native ||
-        ((is_synchronized || is_strict) && major_gte_15 &&
-            (!major_gte_8 || is_abstract)) ||
-        (!major_gte_8 && !is_abstract)) {
-      is_illegal = true;
+    if (major_gte_8) {
+      // Class file version is JAVA_8_VERSION or later Methods of
+      // interfaces may set any of the flags except ACC_PROTECTED,
+      // ACC_FINAL, ACC_NATIVE, and ACC_SYNCHRONIZED; they must
+      // have exactly one of the ACC_PUBLIC or ACC_PRIVATE flags set.
+      if ((is_public == is_private) || /* Only one of private and public should be true - XNOR */
+          (is_native || is_protected || is_final || is_synchronized) ||
+          // If a specific method of a class or interface has its
+          // ACC_ABSTRACT flag set, it must not have any of its
+          // ACC_FINAL, ACC_NATIVE, ACC_PRIVATE, ACC_STATIC,
+          // ACC_STRICT, or ACC_SYNCHRONIZED flags set.  No need to
+          // check for ACC_FINAL, ACC_NATIVE or ACC_SYNCHRONIZED as
+          // those flags are illegal irrespective of ACC_ABSTRACT being set or not.
+          (is_abstract && (is_private || is_static || is_strict))) {
+        is_illegal = true;
+      }
+    } else if (major_gte_15) {
+      // Class file version in the interval [JAVA_1_5_VERSION, JAVA_8_VERSION)
+      if (!is_public || is_static || is_final || is_synchronized ||
+          is_native || !is_abstract || is_strict) {
+        is_illegal = true;
+      }
+    } else {
+      // Class file version is pre-JAVA_1_5_VERSION
+      if (!is_public || is_static || is_final || is_native || !is_abstract) {
+        is_illegal = true;
+      }
     }
   } else { // not interface
     if (is_initializer) {
--- a/src/share/vm/classfile/classFileParser.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/classfile/classFileParser.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -95,17 +95,20 @@
       _method_DontInline,
       _method_LambdaForm_Compiled,
       _method_LambdaForm_Hidden,
+      _sun_misc_Contended,
       _annotation_LIMIT
     };
     const Location _location;
     int _annotations_present;
+    u2 _contended_group;
+
     AnnotationCollector(Location location)
     : _location(location), _annotations_present(0)
     {
       assert((int)_annotation_LIMIT <= (int)sizeof(_annotations_present) * BitsPerByte, "");
     }
     // If this annotation name has an ID, report it (or _none).
-    ID annotation_index(Symbol* name);
+    ID annotation_index(ClassLoaderData* loader_data, Symbol* name);
     // Set the annotation name:
     void set_annotation(ID id) {
       assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob");
@@ -114,6 +117,12 @@
     // Report if the annotation is present.
     bool has_any_annotations() { return _annotations_present != 0; }
     bool has_annotation(ID id) { return (nth_bit((int)id) & _annotations_present) != 0; }
+
+    void set_contended_group(u2 group) { _contended_group = group; }
+    u2 contended_group() { return _contended_group; }
+
+    void set_contended(bool contended) { set_annotation(_sun_misc_Contended); }
+    bool is_contended() { return has_annotation(_sun_misc_Contended); }
   };
   class FieldAnnotationCollector: public AnnotationCollector {
   public:
@@ -177,6 +186,14 @@
                           Array<AnnotationArray*>** fields_type_annotations,
                           u2* java_fields_count_ptr, TRAPS);
 
+  void print_field_layout(Symbol* name,
+                          Array<u2>* fields,
+                          constantPoolHandle cp,
+                          int instance_size,
+                          int instance_fields_start,
+                          int instance_fields_end,
+                          int static_fields_end);
+
   // Method parsing
   methodHandle parse_method(ClassLoaderData* loader_data,
                             constantPoolHandle cp,
@@ -247,7 +264,8 @@
                                         int runtime_invisible_annotations_length, TRAPS);
   int skip_annotation(u1* buffer, int limit, int index);
   int skip_annotation_value(u1* buffer, int limit, int index);
-  void parse_annotations(u1* buffer, int limit, constantPoolHandle cp,
+  void parse_annotations(ClassLoaderData* loader_data,
+                         u1* buffer, int limit, constantPoolHandle cp,
                          /* Results (currently, only one result is supported): */
                          AnnotationCollector* result,
                          TRAPS);
--- a/src/share/vm/classfile/placeholders.cpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/classfile/placeholders.cpp	Wed Jan 16 18:23:37 2013 -0500
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -142,7 +142,7 @@
 }
 
 
-// placeholder used to track class loading internal states
+// placeholder is used to track class loading internal states
 // placeholder existence now for loading superclass/superinterface
 // superthreadQ tracks class circularity, while loading superclass/superinterface
 // loadInstanceThreadQ tracks load_instance_class calls
@@ -153,15 +153,17 @@
 // All claimants remove SeenThread after completing action
 // On removal: if definer and all queues empty, remove entry
 // Note: you can be in both placeholders and systemDictionary
-// see parse_stream for redefine classes
 // Therefore - must always check SD first
 // Ignores the case where entry is not found
 void PlaceholderTable::find_and_remove(int index, unsigned int hash,
-                       Symbol* name, ClassLoaderData* loader_data, Thread* thread) {
+                                       Symbol* name, ClassLoaderData* loader_data,
+                                       classloadAction action,
+                                       Thread* thread) {
     assert_locked_or_safepoint(SystemDictionary_lock);
     PlaceholderEntry *probe = get_entry(index, hash, name, loader_data);
     if (probe != NULL) {
-       // No other threads using this entry
+       probe->remove_seen_thread(thread, action);
+       // If no other threads using this entry, and this thread is not using this entry for other states
        if ((probe->superThreadQ() == NULL) && (probe->loadInstanceThreadQ() == NULL)
           && (probe->defineThreadQ() == NULL) && (probe->definer() == NULL)) {
          remove_entry(index, hash, name, loader_data);
--- a/src/share/vm/classfile/placeholders.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/classfile/placeholders.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -82,7 +82,7 @@
  };
 
   // find_and_add returns probe pointer - old or new
-  // If no entry exists, add a placeholder entry and push SeenThread
+  // If no entry exists, add a placeholder entry and push SeenThread for classloadAction
   // If entry exists, reuse entry and push SeenThread for classloadAction
   PlaceholderEntry* find_and_add(int index, unsigned int hash,
                                  Symbol* name, ClassLoaderData* loader_data,
@@ -92,9 +92,11 @@
   void remove_entry(int index, unsigned int hash,
                     Symbol* name, ClassLoaderData* loader_data);
 
-// Remove placeholder information
+  // find_and_remove first removes SeenThread for classloadAction
+  // If all queues are empty and definer is null, remove the PlacheholderEntry completely
   void find_and_remove(int index, unsigned int hash,
-                       Symbol* name, ClassLoaderData* loader_data, Thread* thread);
+                       Symbol* name, ClassLoaderData* loader_data,
+                       classloadAction action, Thread* thread);
 
   // GC support.
   void classes_do(KlassClosure* f);
--- a/src/share/vm/classfile/systemDictionary.cpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/classfile/systemDictionary.cpp	Wed Jan 16 18:23:37 2013 -0500
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -172,7 +172,7 @@
       assert(klass_h() == NULL, "Should not have result with exception pending");
       Handle e(THREAD, PENDING_EXCEPTION);
       CLEAR_PENDING_EXCEPTION;
-      THROW_MSG_CAUSE_0(vmSymbols::java_lang_NoClassDefFoundError(), class_name->as_C_string(), e);
+      THROW_MSG_CAUSE_NULL(vmSymbols::java_lang_NoClassDefFoundError(), class_name->as_C_string(), e);
     } else {
       return NULL;
     }
@@ -181,9 +181,9 @@
   if (klass_h() == NULL) {
     ResourceMark rm(THREAD);
     if (throw_error) {
-      THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), class_name->as_C_string());
+      THROW_MSG_NULL(vmSymbols::java_lang_NoClassDefFoundError(), class_name->as_C_string());
     } else {
-      THROW_MSG_0(vmSymbols::java_lang_ClassNotFoundException(), class_name->as_C_string());
+      THROW_MSG_NULL(vmSymbols::java_lang_ClassNotFoundException(), class_name->as_C_string());
     }
   }
   return (Klass*)klass_h();
@@ -343,29 +343,29 @@
   }
   if (throw_circularity_error) {
       ResourceMark rm(THREAD);
-      THROW_MSG_0(vmSymbols::java_lang_ClassCircularityError(), child_name->as_C_string());
+      THROW_MSG_NULL(vmSymbols::java_lang_ClassCircularityError(), child_name->as_C_string());
   }
 
 // java.lang.Object should have been found above
   assert(class_name != NULL, "null super class for resolving");
   // Resolve the super class or interface, check results on return
-  Klass* superk = NULL;
-  superk = SystemDictionary::resolve_or_null(class_name,
+  Klass* superk = SystemDictionary::resolve_or_null(class_name,
                                                  class_loader,
                                                  protection_domain,
                                                  THREAD);
 
   KlassHandle superk_h(THREAD, superk);
 
-  // Note: clean up of placeholders currently in callers of
-  // resolve_super_or_fail - either at update_dictionary time
-  // or on error
+  // Clean up of placeholders moved so that each classloadAction registrar self-cleans up
+  // It is no longer necessary to keep the placeholder table alive until update_dictionary
+  // or error. GC used to walk the placeholder table as strong roots.
+  // The instanceKlass is kept alive because the class loader is on the stack,
+  // which keeps the loader_data alive, as well as all instanceKlasses in
+  // the loader_data. parseClassFile adds the instanceKlass to loader_data.
   {
-  MutexLocker mu(SystemDictionary_lock, THREAD);
-   PlaceholderEntry* probe = placeholders()->get_entry(p_index, p_hash, child_name, loader_data);
-   if (probe != NULL) {
-      probe->remove_seen_thread(THREAD, PlaceholderTable::LOAD_SUPER);
-   }
+    MutexLocker mu(SystemDictionary_lock, THREAD);
+    placeholders()->find_and_remove(p_index, p_hash, child_name, loader_data, PlaceholderTable::LOAD_SUPER, THREAD);
+    SystemDictionary_lock->notify_all();
   }
   if (HAS_PENDING_EXCEPTION || superk_h() == NULL) {
     // can null superk
@@ -430,8 +430,8 @@
 
       // We're using a No_Safepoint_Verifier to catch any place where we
       // might potentially do a GC at all.
-      // SystemDictionary::do_unloading() asserts that classes are only
-      // unloaded at a safepoint.
+      // Dictionary::do_unloading() asserts that classes in SD are only
+      // unloaded at a safepoint. Anonymous classes are not in SD.
       No_Safepoint_Verifier nosafepoint;
       dictionary()->add_protection_domain(d_index, d_hash, klass, loader_data,
                                           protection_domain, THREAD);
@@ -486,7 +486,6 @@
 // super class loading here.
 // This also is critical in cases where the original thread gets stalled
 // even in non-circularity situations.
-// Note: only one thread can define the class, but multiple can resolve
 // Note: must call resolve_super_or_fail even if null super -
 // to force placeholder entry creation for this class for circularity detection
 // Caller must check for pending exception
@@ -518,14 +517,6 @@
                                                           protection_domain,
                                                           true,
                                                           CHECK_(nh));
-  // We don't redefine the class, so we just need to clean up if there
-  // was not an error (don't want to modify any system dictionary
-  // data structures).
-  {
-    MutexLocker mu(SystemDictionary_lock, THREAD);
-    placeholders()->find_and_remove(p_index, p_hash, name, loader_data, THREAD);
-    SystemDictionary_lock->notify_all();
-  }
 
   // parallelCapable class loaders do NOT wait for parallel superclass loads to complete
   // Serial class loaders and bootstrap classloader do wait for superclass loads
@@ -595,6 +586,10 @@
 
   // Do lookup to see if class already exist and the protection domain
   // has the right access
+  // This call uses find which checks protection domain already matches
+  // All subsequent calls use find_class, and set has_loaded_class so that
+  // before we return a result we call out to java to check for valid protection domain
+  // to allow returning the Klass* and add it to the pd_set if it is valid
   unsigned int d_hash = dictionary()->compute_hash(name, loader_data);
   int d_index = dictionary()->hash_to_index(d_hash);
   Klass* probe = dictionary()->find(d_index, d_hash, name, loader_data,
@@ -652,7 +647,7 @@
     }
   }
 
-  // If the class in is in the placeholder table, class loading is in progress
+  // If the class is in the placeholder table, class loading is in progress
   if (super_load_in_progress && havesupername==true) {
     k = SystemDictionary::handle_parallel_super_load(name, superclassname,
         class_loader, protection_domain, lockObject, THREAD);
@@ -664,7 +659,9 @@
     }
   }
 
+  bool throw_circularity_error = false;
   if (!class_has_been_loaded) {
+    bool load_instance_added = false;
 
     // add placeholder entry to record loading instance class
     // Five cases:
@@ -690,7 +687,7 @@
     //    No performance benefit and no deadlock issues.
     // case 5. parallelCapable user level classloaders - without objectLocker
     //    Allow parallel classloading of a class/classloader pair
-    bool throw_circularity_error = false;
+
     {
       MutexLocker mu(SystemDictionary_lock, THREAD);
       if (class_loader.is_null() || !is_parallelCapable(class_loader)) {
@@ -726,12 +723,13 @@
           }
         }
       }
-      // All cases: add LOAD_INSTANCE
+      // All cases: add LOAD_INSTANCE holding SystemDictionary_lock
       // case 3: UnsyncloadClass || case 5: parallelCapable: allow competing threads to try
       // LOAD_INSTANCE in parallel
-      // add placeholder entry even if error - callers will remove on error
+
       if (!throw_circularity_error && !class_has_been_loaded) {
         PlaceholderEntry* newprobe = placeholders()->find_and_add(p_index, p_hash, name, loader_data, PlaceholderTable::LOAD_INSTANCE, NULL, THREAD);
+        load_instance_added = true;
         // For class loaders that do not acquire the classloader object lock,
         // if they did not catch another thread holding LOAD_INSTANCE,
         // need a check analogous to the acquire ObjectLocker/find_class
@@ -740,19 +738,18 @@
         // class loaders holding the ObjectLock shouldn't find the class here
         Klass* check = find_class(d_index, d_hash, name, loader_data);
         if (check != NULL) {
-        // Klass is already loaded, so just return it
+        // Klass is already loaded, so return it after checking/adding protection domain
           k = instanceKlassHandle(THREAD, check);
           class_has_been_loaded = true;
-          newprobe->remove_seen_thread(THREAD, PlaceholderTable::LOAD_INSTANCE);
-          placeholders()->find_and_remove(p_index, p_hash, name, loader_data, THREAD);
-          SystemDictionary_lock->notify_all();
         }
       }
     }
+
     // must throw error outside of owning lock
     if (throw_circularity_error) {
+      assert(!HAS_PENDING_EXCEPTION && load_instance_added == false,"circularity error cleanup");
       ResourceMark rm(THREAD);
-      THROW_MSG_0(vmSymbols::java_lang_ClassCircularityError(), name->as_C_string());
+      THROW_MSG_NULL(vmSymbols::java_lang_ClassCircularityError(), name->as_C_string());
     }
 
     if (!class_has_been_loaded) {
@@ -782,20 +779,6 @@
         }
       }
 
-      // clean up placeholder entries for success or error
-      // This cleans up LOAD_INSTANCE entries
-      // It also cleans up LOAD_SUPER entries on errors from
-      // calling load_instance_class
-      {
-        MutexLocker mu(SystemDictionary_lock, THREAD);
-        PlaceholderEntry* probe = placeholders()->get_entry(p_index, p_hash, name, loader_data);
-        if (probe != NULL) {
-          probe->remove_seen_thread(THREAD, PlaceholderTable::LOAD_INSTANCE);
-          placeholders()->find_and_remove(p_index, p_hash, name, loader_data, THREAD);
-          SystemDictionary_lock->notify_all();
-        }
-      }
-
       // If everything was OK (no exceptions, no null return value), and
       // class_loader is NOT the defining loader, do a little more bookkeeping.
       if (!HAS_PENDING_EXCEPTION && !k.is_null() &&
@@ -819,18 +802,22 @@
           }
         }
       }
-      if (HAS_PENDING_EXCEPTION || k.is_null()) {
-        // On error, clean up placeholders
-        {
-          MutexLocker mu(SystemDictionary_lock, THREAD);
-          placeholders()->find_and_remove(p_index, p_hash, name, loader_data, THREAD);
-          SystemDictionary_lock->notify_all();
-        }
-        return NULL;
-      }
+    } // load_instance_class loop
+
+    if (load_instance_added == true) {
+      // clean up placeholder entries for LOAD_INSTANCE success or error
+      // This brackets the SystemDictionary updates for both defining
+      // and initiating loaders
+      MutexLocker mu(SystemDictionary_lock, THREAD);
+        placeholders()->find_and_remove(p_index, p_hash, name, loader_data, PlaceholderTable::LOAD_INSTANCE, THREAD);
+        SystemDictionary_lock->notify_all();
     }
   }
 
+  if (HAS_PENDING_EXCEPTION || k.is_null()) {
+    return NULL;
+  }
+
 #ifdef ASSERT
   {
     ClassLoaderData* loader_data = k->class_loader_data();
@@ -850,8 +837,8 @@
     // so we cannot allow GC to occur while we're holding this entry.
     // We're using a No_Safepoint_Verifier to catch any place where we
     // might potentially do a GC at all.
-    // SystemDictionary::do_unloading() asserts that classes are only
-    // unloaded at a safepoint.
+    // Dictionary::do_unloading() asserts that classes in SD are only
+    // unloaded at a safepoint. Anonymous classes are not in SD.
     No_Safepoint_Verifier nosafepoint;
     if (dictionary()->is_valid_protection_domain(d_index, d_hash, name,
                                                  loader_data,
@@ -898,8 +885,8 @@
     // so we cannot allow GC to occur while we're holding this entry.
     // We're using a No_Safepoint_Verifier to catch any place where we
     // might potentially do a GC at all.
-    // SystemDictionary::do_unloading() asserts that classes are only
-    // unloaded at a safepoint.
+    // Dictionary::do_unloading() asserts that classes in SD are only
+    // unloaded at a safepoint. Anonymous classes are not in SD.
     No_Safepoint_Verifier nosafepoint;
     return dictionary()->find(d_index, d_hash, class_name, loader_data,
                               protection_domain, THREAD);
@@ -965,10 +952,6 @@
   // throw potential ClassFormatErrors.
   //
   // Note: "name" is updated.
-  // Further note:  a placeholder will be added for this class when
-  //   super classes are loaded (resolve_super_or_fail). We expect this
-  //   to be called for all classes but java.lang.Object; and we preload
-  //   java.lang.Object through resolve_or_fail, not this path.
 
   instanceKlassHandle k = ClassFileParser(st).parseClassFile(class_name,
                                                              loader_data,
@@ -979,21 +962,6 @@
                                                              true,
                                                              THREAD);
 
-  // We don't redefine the class, so we just need to clean up whether there
-  // was an error or not (don't want to modify any system dictionary
-  // data structures).
-  // Parsed name could be null if we threw an error before we got far
-  // enough along to parse it -- in that case, there is nothing to clean up.
-  if (parsed_name != NULL) {
-    unsigned int p_hash = placeholders()->compute_hash(parsed_name,
-                                                       loader_data);
-    int p_index = placeholders()->hash_to_index(p_hash);
-    {
-    MutexLocker mu(SystemDictionary_lock, THREAD);
-    placeholders()->find_and_remove(p_index, p_hash, parsed_name, loader_data, THREAD);
-    SystemDictionary_lock->notify_all();
-    }
-  }
 
   if (host_klass.not_null() && k.not_null()) {
     assert(EnableInvokeDynamic, "");
@@ -1062,10 +1030,6 @@
   // throw potential ClassFormatErrors.
   //
   // Note: "name" is updated.
-  // Further note:  a placeholder will be added for this class when
-  //   super classes are loaded (resolve_super_or_fail). We expect this
-  //   to be called for all classes but java.lang.Object; and we preload
-  //   java.lang.Object through resolve_or_fail, not this path.
 
   instanceKlassHandle k = ClassFileParser(st).parseClassFile(class_name,
                                                              loader_data,
@@ -1114,25 +1078,7 @@
     }
   }
 
-  // If parsing the class file or define_instance_class failed, we
-  // need to remove the placeholder added on our behalf. But we
-  // must make sure parsed_name is valid first (it won't be if we had
-  // a format error before the class was parsed far enough to
-  // find the name).
-  if (HAS_PENDING_EXCEPTION && parsed_name != NULL) {
-    unsigned int p_hash = placeholders()->compute_hash(parsed_name,
-                                                       loader_data);
-    int p_index = placeholders()->hash_to_index(p_hash);
-    {
-    MutexLocker mu(SystemDictionary_lock, THREAD);
-    placeholders()->find_and_remove(p_index, p_hash, parsed_name, loader_data, THREAD);
-    SystemDictionary_lock->notify_all();
-    }
-    return NULL;
-  }
-
-  // Make sure that we didn't leave a place holder in the
-  // SystemDictionary; this is only done on success
+  // Make sure we have an entry in the SystemDictionary on success
   debug_only( {
     if (!HAS_PENDING_EXCEPTION) {
       assert(parsed_name != NULL, "parsed_name is still null?");
@@ -1547,8 +1493,7 @@
     // Other cases fall through, and may run into duplicate defines
     // caught by finding an entry in the SystemDictionary
     if ((UnsyncloadClass || is_parallelDefine(class_loader)) && (probe->instance_klass() != NULL)) {
-        probe->remove_seen_thread(THREAD, PlaceholderTable::DEFINE_CLASS);
-        placeholders()->find_and_remove(p_index, p_hash, name_h, loader_data, THREAD);
+        placeholders()->find_and_remove(p_index, p_hash, name_h, loader_data, PlaceholderTable::DEFINE_CLASS, THREAD);
         SystemDictionary_lock->notify_all();
 #ifdef ASSERT
         Klass* check = find_class(d_index, d_hash, name_h, loader_data);
@@ -1578,8 +1523,7 @@
         probe->set_instance_klass(k());
       }
       probe->set_definer(NULL);
-      probe->remove_seen_thread(THREAD, PlaceholderTable::DEFINE_CLASS);
-      placeholders()->find_and_remove(p_index, p_hash, name_h, loader_data, THREAD);
+      placeholders()->find_and_remove(p_index, p_hash, name_h, loader_data, PlaceholderTable::DEFINE_CLASS, THREAD);
       SystemDictionary_lock->notify_all();
     }
   }
@@ -1736,6 +1680,8 @@
   }
   return newsize;
 }
+// Assumes classes in the SystemDictionary are only unloaded at a safepoint
+// Note: anonymous classes are not in the SD.
 bool SystemDictionary::do_unloading(BoolObjectClosure* is_alive) {
   // First, mark for unload all ClassLoaderData referencing a dead class loader.
   bool has_dead_loaders = ClassLoaderDataGraph::do_unloading(is_alive);
@@ -2105,9 +2051,7 @@
   // All loaded classes get a unique ID.
   TRACE_INIT_ID(k);
 
-  // Check for a placeholder. If there, remove it and make a
-  // new system dictionary entry.
-  placeholders()->find_and_remove(p_index, p_hash, name, loader_data, THREAD);
+  // Make a new system dictionary entry.
   Klass* sd_check = find_class(d_index, d_hash, name, loader_data);
   if (sd_check == NULL) {
     dictionary()->add_klass(name, loader_data, k);
@@ -2116,12 +2060,8 @@
 #ifdef ASSERT
   sd_check = find_class(d_index, d_hash, name, loader_data);
   assert (sd_check != NULL, "should have entry in system dictionary");
-// Changed to allow PH to remain to complete class circularity checking
-// while only one thread can define a class at one time, multiple
-// classes can resolve the superclass for a class at one time,
-// and the placeholder is used to track that
-//  Symbol* ph_check = find_placeholder(name, class_loader);
-//  assert (ph_check == NULL, "should not have a placeholder entry");
+  // Note: there may be a placeholder entry: for circularity testing
+  // or for parallel defines
 #endif
     SystemDictionary_lock->notify_all();
   }
--- a/src/share/vm/classfile/vmSymbols.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/classfile/vmSymbols.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -194,7 +194,10 @@
   template(java_lang_VirtualMachineError,             "java/lang/VirtualMachineError")            \
   template(java_lang_StackOverflowError,              "java/lang/StackOverflowError")             \
   template(java_lang_StackTraceElement,               "java/lang/StackTraceElement")              \
+                                                                                                  \
+  /* Concurrency support */                                                                       \
   template(java_util_concurrent_locks_AbstractOwnableSynchronizer,   "java/util/concurrent/locks/AbstractOwnableSynchronizer") \
+  template(sun_misc_Contended_signature,              "Lsun/misc/Contended;")                     \
                                                                                                   \
   /* class symbols needed by intrinsics */                                                        \
   VM_INTRINSICS_DO(VM_INTRINSIC_IGNORE, template, VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_ALIAS_IGNORE) \
@@ -284,7 +287,7 @@
   NOT_LP64(  do_alias(intptr_signature,               int_signature)  )                           \
   LP64_ONLY( do_alias(intptr_signature,               long_signature) )                           \
   template(selectAlternative_signature, "(ZLjava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodHandle;)Ljava/lang/invoke/MethodHandle;") \
-                                                                                                  \
+                                                                      \
   /* common method and field names */                                                             \
   template(object_initializer_name,                   "<init>")                                   \
   template(class_initializer_name,                    "<clinit>")                                 \
--- a/src/share/vm/memory/metaspaceShared.cpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/memory/metaspaceShared.cpp	Wed Jan 16 18:23:37 2013 -0500
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -373,17 +373,44 @@
   md_top = wc.get_top();
 
   // Print shared spaces all the time
-  const char* fmt = "%s space: " PTR_FORMAT " out of " PTR_FORMAT " words allocated at " PTR_FORMAT ".";
+  const char* fmt = "%s space: %9d [ %4.1f%% of total] out of %9d bytes [%4.1f%% used] at " PTR_FORMAT;
   Metaspace* ro_space = _loader_data->ro_metaspace();
   Metaspace* rw_space = _loader_data->rw_metaspace();
-  tty->print_cr(fmt, "ro", ro_space->used_words(Metaspace::NonClassType),
-                ro_space->capacity_words(Metaspace::NonClassType),
-                ro_space->bottom());
-  tty->print_cr(fmt, "rw", rw_space->used_words(Metaspace::NonClassType),
-                rw_space->capacity_words(Metaspace::NonClassType),
-                rw_space->bottom());
-  tty->print_cr(fmt, "md", md_top - md_low, md_end-md_low, md_low);
-  tty->print_cr(fmt, "mc", mc_top - mc_low, mc_end-mc_low, mc_low);
+  const size_t BPW = BytesPerWord;
+
+  // Allocated size of each space (may not be all occupied)
+  const size_t ro_alloced = ro_space->capacity_words(Metaspace::NonClassType) * BPW;
+  const size_t rw_alloced = rw_space->capacity_words(Metaspace::NonClassType) * BPW;
+  const size_t md_alloced = md_end-md_low;
+  const size_t mc_alloced = mc_end-mc_low;
+  const size_t total_alloced = ro_alloced + rw_alloced + md_alloced + mc_alloced;
+
+  // Occupied size of each space.
+  const size_t ro_bytes = ro_space->used_words(Metaspace::NonClassType) * BPW;
+  const size_t rw_bytes = rw_space->used_words(Metaspace::NonClassType) * BPW;
+  const size_t md_bytes = size_t(md_top - md_low);
+  const size_t mc_bytes = size_t(mc_top - mc_low);
+
+  // Percent of total size
+  const size_t total_bytes = ro_bytes + rw_bytes + md_bytes + mc_bytes;
+  const double ro_t_perc = ro_bytes / double(total_bytes) * 100.0;
+  const double rw_t_perc = rw_bytes / double(total_bytes) * 100.0;
+  const double md_t_perc = md_bytes / double(total_bytes) * 100.0;
+  const double mc_t_perc = mc_bytes / double(total_bytes) * 100.0;
+
+  // Percent of fullness of each space
+  const double ro_u_perc = ro_bytes / double(ro_alloced) * 100.0;
+  const double rw_u_perc = rw_bytes / double(rw_alloced) * 100.0;
+  const double md_u_perc = md_bytes / double(md_alloced) * 100.0;
+  const double mc_u_perc = mc_bytes / double(mc_alloced) * 100.0;
+  const double total_u_perc = total_bytes / double(total_alloced) * 100.0;
+
+  tty->print_cr(fmt, "ro", ro_bytes, ro_t_perc, ro_alloced, ro_u_perc, ro_space->bottom());
+  tty->print_cr(fmt, "rw", rw_bytes, rw_t_perc, rw_alloced, rw_u_perc, rw_space->bottom());
+  tty->print_cr(fmt, "md", md_bytes, md_t_perc, md_alloced, md_u_perc, md_low);
+  tty->print_cr(fmt, "mc", mc_bytes, mc_t_perc, mc_alloced, mc_u_perc, mc_low);
+  tty->print_cr("total   : %9d [100.0%% of total] out of %9d bytes [%4.1f%% used]",
+                 total_bytes, total_alloced, total_u_perc);
 
   // Update the vtable pointers in all of the Klass objects in the
   // heap. They should point to newly generated vtable.
--- a/src/share/vm/oops/constMethod.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/oops/constMethod.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -122,7 +122,12 @@
 class MethodParametersElement VALUE_OBJ_CLASS_SPEC {
  public:
   u2 name_cp_index;
-  u4 flags;
+  // This has to happen, otherwise it will cause SIGBUS from a
+  // misaligned u4 on some architectures (ie SPARC)
+  // because MethodParametersElements are only aligned mod 2
+  // within the ConstMethod container  u2 flags_hi;
+  u2 flags_hi;
+  u2 flags_lo;
 };
 
 
--- a/src/share/vm/oops/fieldInfo.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/oops/fieldInfo.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -43,14 +43,29 @@
  public:
   // fields
   // Field info extracted from the class file and stored
-  // as an array of 7 shorts
+  // as an array of 6 shorts.
+
+#define FIELDINFO_TAG_SIZE             2
+#define FIELDINFO_TAG_BLANK            0
+#define FIELDINFO_TAG_OFFSET           1
+#define FIELDINFO_TAG_TYPE_PLAIN       2
+#define FIELDINFO_TAG_TYPE_CONTENDED   3
+#define FIELDINFO_TAG_MASK             3
+
+  // Packed field has the tag, and can be either of:
+  //    hi bits <--------------------------- lo bits
+  //   |---------high---------|---------low---------|
+  //    ..........................................00  - blank
+  //    [------------------offset----------------]01  - real field offset
+  //    ......................[-------type-------]10  - plain field with type
+  //    [--contention_group--][-------type-------]11  - contended field with type and contention group
   enum FieldOffset {
     access_flags_offset      = 0,
     name_index_offset        = 1,
     signature_index_offset   = 2,
     initval_index_offset     = 3,
-    low_offset               = 4,
-    high_offset              = 5,
+    low_packed_offset        = 4,
+    high_packed_offset       = 5,
     field_slots              = 6
   };
 
@@ -76,17 +91,90 @@
   void initialize(u2 access_flags,
                   u2 name_index,
                   u2 signature_index,
-                  u2 initval_index,
-                  u4 offset) {
+                  u2 initval_index) {
     _shorts[access_flags_offset] = access_flags;
     _shorts[name_index_offset] = name_index;
     _shorts[signature_index_offset] = signature_index;
     _shorts[initval_index_offset] = initval_index;
-    set_offset(offset);
+    _shorts[low_packed_offset] = 0;
+    _shorts[high_packed_offset] = 0;
   }
 
   u2 access_flags() const                        { return _shorts[access_flags_offset];            }
-  u4 offset() const                              { return build_int_from_shorts(_shorts[low_offset], _shorts[high_offset]); }
+  u4 offset() const {
+    u2 lo = _shorts[low_packed_offset];
+    switch(lo & FIELDINFO_TAG_MASK) {
+      case FIELDINFO_TAG_OFFSET:
+        return build_int_from_shorts(_shorts[low_packed_offset], _shorts[high_packed_offset]) >> FIELDINFO_TAG_SIZE;
+#ifndef PRODUCT
+      case FIELDINFO_TAG_TYPE_PLAIN:
+        ShouldNotReachHere2("Asking offset for the plain type field");
+      case FIELDINFO_TAG_TYPE_CONTENDED:
+        ShouldNotReachHere2("Asking offset for the contended type field");
+      case FIELDINFO_TAG_BLANK:
+        ShouldNotReachHere2("Asking offset for the blank field");
+#endif
+    }
+    ShouldNotReachHere();
+    return 0;
+  }
+
+  bool is_contended() const {
+    u2 lo = _shorts[low_packed_offset];
+    switch(lo & FIELDINFO_TAG_MASK) {
+      case FIELDINFO_TAG_TYPE_PLAIN:
+        return false;
+      case FIELDINFO_TAG_TYPE_CONTENDED:
+        return true;
+#ifndef PRODUCT
+      case FIELDINFO_TAG_OFFSET:
+        ShouldNotReachHere2("Asking contended flag for the field with offset");
+      case FIELDINFO_TAG_BLANK:
+        ShouldNotReachHere2("Asking contended flag for the blank field");
+#endif
+    }
+    ShouldNotReachHere();
+    return false;
+  }
+
+  u2 contended_group() const {
+    u2 lo = _shorts[low_packed_offset];
+    switch(lo & FIELDINFO_TAG_MASK) {
+      case FIELDINFO_TAG_TYPE_PLAIN:
+        return 0;
+      case FIELDINFO_TAG_TYPE_CONTENDED:
+        return _shorts[high_packed_offset];
+#ifndef PRODUCT
+      case FIELDINFO_TAG_OFFSET:
+        ShouldNotReachHere2("Asking the contended group for the field with offset");
+      case FIELDINFO_TAG_BLANK:
+        ShouldNotReachHere2("Asking the contended group for the blank field");
+#endif
+    }
+    ShouldNotReachHere();
+    return 0;
+ }
+
+  u2 allocation_type() const {
+    u2 lo = _shorts[low_packed_offset];
+    switch(lo & FIELDINFO_TAG_MASK) {
+      case FIELDINFO_TAG_TYPE_PLAIN:
+      case FIELDINFO_TAG_TYPE_CONTENDED:
+        return (lo >> FIELDINFO_TAG_SIZE);
+#ifndef PRODUCT
+      case FIELDINFO_TAG_OFFSET:
+        ShouldNotReachHere2("Asking the field type for field with offset");
+      case FIELDINFO_TAG_BLANK:
+        ShouldNotReachHere2("Asking the field type for the blank field");
+#endif
+    }
+    ShouldNotReachHere();
+    return 0;
+  }
+
+  bool is_offset_set() const {
+    return (_shorts[low_packed_offset] & FIELDINFO_TAG_MASK) == FIELDINFO_TAG_OFFSET;
+  }
 
   Symbol* name(constantPoolHandle cp) const {
     int index = name_index();
@@ -106,8 +194,46 @@
 
   void set_access_flags(u2 val)                  { _shorts[access_flags_offset] = val;             }
   void set_offset(u4 val)                        {
-    _shorts[low_offset] = extract_low_short_from_int(val);
-    _shorts[high_offset] = extract_high_short_from_int(val);
+    val = val << FIELDINFO_TAG_SIZE; // make room for tag
+    _shorts[low_packed_offset] = extract_low_short_from_int(val) | FIELDINFO_TAG_OFFSET;
+    _shorts[high_packed_offset] = extract_high_short_from_int(val);
+  }
+
+  void set_allocation_type(int type) {
+    u2 lo = _shorts[low_packed_offset];
+    switch(lo & FIELDINFO_TAG_MASK) {
+      case FIELDINFO_TAG_BLANK:
+        _shorts[low_packed_offset] = ((type << FIELDINFO_TAG_SIZE)) & 0xFFFF;
+        _shorts[low_packed_offset] &= ~FIELDINFO_TAG_MASK;
+        _shorts[low_packed_offset] |= FIELDINFO_TAG_TYPE_PLAIN;
+        return;
+#ifndef PRODUCT
+      case FIELDINFO_TAG_TYPE_PLAIN:
+      case FIELDINFO_TAG_TYPE_CONTENDED:
+      case FIELDINFO_TAG_OFFSET:
+        ShouldNotReachHere2("Setting the field type with overwriting");
+#endif
+    }
+    ShouldNotReachHere();
+  }
+
+  void set_contended_group(u2 val) {
+    u2 lo = _shorts[low_packed_offset];
+    switch(lo & FIELDINFO_TAG_MASK) {
+      case FIELDINFO_TAG_TYPE_PLAIN:
+        _shorts[low_packed_offset] |= FIELDINFO_TAG_TYPE_CONTENDED;
+        _shorts[high_packed_offset] = val;
+        return;
+#ifndef PRODUCT
+      case FIELDINFO_TAG_TYPE_CONTENDED:
+        ShouldNotReachHere2("Overwriting contended group");
+      case FIELDINFO_TAG_BLANK:
+        ShouldNotReachHere2("Setting contended group for the blank field");
+      case FIELDINFO_TAG_OFFSET:
+        ShouldNotReachHere2("Setting contended group for field with offset");
+#endif
+    }
+    ShouldNotReachHere();
   }
 
   bool is_internal() const {
--- a/src/share/vm/oops/fieldStreams.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/oops/fieldStreams.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -160,9 +160,26 @@
     return field()->offset();
   }
 
+  int allocation_type() const {
+    return field()->allocation_type();
+  }
+
   void set_offset(int offset) {
     field()->set_offset(offset);
   }
+
+  bool is_offset_set() const {
+    return field()->is_offset_set();
+  }
+
+  bool is_contended() const {
+    return field()->is_contended();
+  }
+
+  int contended_group() const {
+    return field()->contended_group();
+  }
+
 };
 
 // Iterate over only the internal fields
--- a/src/share/vm/oops/instanceKlass.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/oops/instanceKlass.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -230,7 +230,8 @@
     _misc_rewritten            = 1 << 0, // methods rewritten.
     _misc_has_nonstatic_fields = 1 << 1, // for sizing with UseCompressedOops
     _misc_should_verify_class  = 1 << 2, // allow caching of preverification
-    _misc_is_anonymous         = 1 << 3  // has embedded _inner_classes field
+    _misc_is_anonymous         = 1 << 3, // has embedded _inner_classes field
+    _misc_is_contended         = 1 << 4  // marked with contended annotation
   };
   u2              _misc_flags;
   u2              _minor_version;        // minor version number of class file
@@ -550,6 +551,17 @@
     return is_anonymous() ? java_mirror() : class_loader();
   }
 
+  bool is_contended() const                {
+    return (_misc_flags & _misc_is_contended) != 0;
+  }
+  void set_is_contended(bool value)        {
+    if (value) {
+      _misc_flags |= _misc_is_contended;
+    } else {
+      _misc_flags &= ~_misc_is_contended;
+    }
+  }
+
   // signers
   objArrayOop signers() const              { return _signers; }
   void set_signers(objArrayOop s)          { klass_oop_store((oop*)&_signers, s); }
--- a/src/share/vm/prims/jvm.cpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/prims/jvm.cpp	Wed Jan 16 18:23:37 2013 -0500
@@ -1589,6 +1589,12 @@
   return NULL;
 JVM_END
 
+static void bounds_check(constantPoolHandle cp, jint index, TRAPS) {
+  if (!cp->is_within_bounds(index)) {
+    THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "Constant pool index out of bounds");
+  }
+}
+
 JVM_ENTRY(jobjectArray, JVM_GetMethodParameters(JNIEnv *env, jobject method))
 {
   JVMWrapper("JVM_GetMethodParameters");
@@ -1598,15 +1604,31 @@
   Handle reflected_method (THREAD, JNIHandles::resolve_non_null(method));
   const int num_params = mh->method_parameters_length();
 
-  if(0 != num_params) {
+  if (0 != num_params) {
+    // make sure all the symbols are properly formatted
+    for (int i = 0; i < num_params; i++) {
+      MethodParametersElement* params = mh->method_parameters_start();
+      int index = params[i].name_cp_index;
+      bounds_check(mh->constants(), index, CHECK_NULL);
+
+      if (0 != index && !mh->constants()->tag_at(index).is_utf8()) {
+        THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
+                    "Wrong type at constant pool index");
+      }
+
+    }
+
     objArrayOop result_oop = oopFactory::new_objArray(SystemDictionary::reflect_Parameter_klass(), num_params, CHECK_NULL);
     objArrayHandle result (THREAD, result_oop);
 
-    for(int i = 0; i < num_params; i++) {
+    for (int i = 0; i < num_params; i++) {
       MethodParametersElement* params = mh->method_parameters_start();
-      Symbol* const sym = mh->constants()->symbol_at(params[i].name_cp_index);
+      // For a 0 index, give a NULL symbol
+      Symbol* const sym = 0 != params[i].name_cp_index ?
+        mh->constants()->symbol_at(params[i].name_cp_index) : NULL;
+      int flags = build_int_from_shorts(params[i].flags_lo, params[i].flags_hi);
       oop param = Reflection::new_parameter(reflected_method, i, sym,
-                                            params[i].flags, CHECK_NULL);
+                                            flags, CHECK_NULL);
       result->obj_at_put(i, param);
     }
     return (jobjectArray)JNIHandles::make_local(env, result());
@@ -1830,13 +1852,6 @@
 JVM_END
 
 
-static void bounds_check(constantPoolHandle cp, jint index, TRAPS) {
-  if (!cp->is_within_bounds(index)) {
-    THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "Constant pool index out of bounds");
-  }
-}
-
-
 JVM_ENTRY(jclass, JVM_ConstantPoolGetClassAt(JNIEnv *env, jobject obj, jobject unused, jint index))
 {
   JVMWrapper("JVM_ConstantPoolGetClassAt");
@@ -1851,7 +1866,6 @@
 }
 JVM_END
 
-
 JVM_ENTRY(jclass, JVM_ConstantPoolGetClassAtIfLoaded(JNIEnv *env, jobject obj, jobject unused, jint index))
 {
   JVMWrapper("JVM_ConstantPoolGetClassAtIfLoaded");
--- a/src/share/vm/runtime/globals.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/runtime/globals.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -1075,7 +1075,7 @@
                                                                             \
   product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" )                    \
                                                                             \
-  product(intx, hashCode, 0,                                                \
+  product(intx, hashCode, 5,                                                \
          "(Unstable) select hashCode generation algorithm" )                \
                                                                             \
   product(intx, WorkAroundNPTLTimedWaitHang, 1,                             \
@@ -1166,6 +1166,18 @@
   notproduct(bool, PrintCompactFieldsSavings, false,                        \
           "Print how many words were saved with CompactFields")             \
                                                                             \
+  notproduct(bool, PrintFieldLayout, false,                                 \
+          "Print field layout for each class")                              \
+                                                                            \
+  product(intx, ContendedPaddingWidth, 128,                                 \
+          "How many bytes to pad the fields/classes marked @Contended with")\
+                                                                            \
+  product(bool, EnableContended, true,                                      \
+          "Enable @Contended annotation support")                           \
+                                                                            \
+  product(bool, RestrictContended, true,                                    \
+          "Restrict @Contended to trusted classes")                         \
+                                                                            \
   product(bool, UseBiasedLocking, true,                                     \
           "Enable biased locking in JVM")                                   \
                                                                             \
--- a/src/share/vm/runtime/java.cpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/runtime/java.cpp	Wed Jan 16 18:23:37 2013 -0500
@@ -542,6 +542,10 @@
     BeforeExit_lock->notify_all();
   }
 
+  // Shutdown NMT before exit. Otherwise,
+  // it will run into trouble when system destroys static variables.
+  MemTracker::shutdown(MemTracker::NMT_normal);
+
   #undef BEFORE_EXIT_NOT_RUN
   #undef BEFORE_EXIT_RUNNING
   #undef BEFORE_EXIT_DONE
--- a/src/share/vm/runtime/reflection.cpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/runtime/reflection.cpp	Wed Jan 16 18:23:37 2013 -0500
@@ -862,7 +862,15 @@
 
 oop Reflection::new_parameter(Handle method, int index, Symbol* sym,
                               int flags, TRAPS) {
-  Handle name = java_lang_String::create_from_symbol(sym, CHECK_NULL);
+  Handle name;
+
+  // A null symbol here translates to the empty string
+  if(NULL != sym) {
+    name = java_lang_String::create_from_symbol(sym, CHECK_NULL);
+  } else {
+    name = java_lang_String::create_from_str("", CHECK_NULL);
+  }
+
   Handle rh = java_lang_reflect_Parameter::create(CHECK_NULL);
   java_lang_reflect_Parameter::set_name(rh(), name());
   java_lang_reflect_Parameter::set_modifiers(rh(), flags);
--- a/src/share/vm/runtime/thread.cpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/runtime/thread.cpp	Wed Jan 16 18:23:37 2013 -0500
@@ -4011,10 +4011,6 @@
                          Mutex::_as_suspend_equivalent_flag);
   }
 
-  // Shutdown NMT before exit. Otherwise,
-  // it will run into trouble when system destroys static variables.
-  MemTracker::shutdown(MemTracker::NMT_normal);
-
   // Hang forever on exit if we are reporting an error.
   if (ShowMessageBoxOnError && is_error_reported()) {
     os::infinite_sleep();
--- a/src/share/vm/runtime/vmStructs.cpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/runtime/vmStructs.cpp	Wed Jan 16 18:23:37 2013 -0500
@@ -257,8 +257,7 @@
                    c1_nonstatic_field, \
                    c2_nonstatic_field, \
                    unchecked_c1_static_field, \
-                   unchecked_c2_static_field, \
-                   last_entry) \
+                   unchecked_c2_static_field) \
                                                                                                                                      \
   /******************************************************************/                                                               \
   /* OopDesc and Klass hierarchies (NOTE: MethodData* incomplete) */                                                               \
@@ -718,7 +717,6 @@
   nonstatic_field(ClassLoaderData,             _next,                                         ClassLoaderData*)                      \
                                                                                                                                      \
   static_field(ClassLoaderDataGraph,           _head,                                         ClassLoaderData*)                      \
-  nonstatic_field(ClassLoaderDataGraph,        _unloading,                                    ClassLoaderData*)                      \
                                                                                                                                      \
   /*******************/                                                                                                              \
   /* GrowableArrays  */                                                                                                              \
@@ -1238,9 +1236,6 @@
   nonstatic_field(FreeList<Metablock>,         _count,                                       ssize_t)                                \
   nonstatic_field(MetablockTreeDictionary,     _total_size,                                  size_t)
 
-  /* NOTE that we do not use the last_entry() macro here; it is used  */
-  /* in vmStructs_<os>_<cpu>.hpp's VM_STRUCTS_OS_CPU macro (and must  */
-  /* be present there)                                                */
 
 //--------------------------------------------------------------------------------
 // VM_TYPES
@@ -1280,8 +1275,7 @@
                  declare_unsigned_integer_type,                           \
                  declare_c1_toplevel_type,                                \
                  declare_c2_type,                                         \
-                 declare_c2_toplevel_type,                                \
-                 last_entry)                                              \
+                 declare_c2_toplevel_type)                                \
                                                                           \
   /*************************************************************/         \
   /* Java primitive types -- required by the SA implementation */         \
@@ -2098,10 +2092,6 @@
            declare_type(MetablockTreeDictionary, FreeBlockDictionary<Metablock>)
 
 
-  /* NOTE that we do not use the last_entry() macro here; it is used  */
-  /* in vmStructs_<os>_<cpu>.hpp's VM_TYPES_OS_CPU macro (and must be */
-  /* present there)                                                   */
-
 //--------------------------------------------------------------------------------
 // VM_INT_CONSTANTS
 //
@@ -2114,8 +2104,7 @@
                          declare_preprocessor_constant,                   \
                          declare_c1_constant,                             \
                          declare_c2_constant,                             \
-                         declare_c2_preprocessor_constant,                \
-                         last_entry)                                      \
+                         declare_c2_preprocessor_constant)                \
                                                                           \
   /******************/                                                    \
   /* Useful globals */                                                    \
@@ -2294,10 +2283,17 @@
   declare_constant(FieldInfo::name_index_offset)                          \
   declare_constant(FieldInfo::signature_index_offset)                     \
   declare_constant(FieldInfo::initval_index_offset)                       \
-  declare_constant(FieldInfo::low_offset)                                 \
-  declare_constant(FieldInfo::high_offset)                                \
+  declare_constant(FieldInfo::low_packed_offset)                          \
+  declare_constant(FieldInfo::high_packed_offset)                         \
   declare_constant(FieldInfo::field_slots)                                \
                                                                           \
+  /*************************************/                                 \
+  /* FieldInfo tag constants           */                                 \
+  /*************************************/                                 \
+                                                                          \
+  declare_preprocessor_constant("FIELDINFO_TAG_SIZE", FIELDINFO_TAG_SIZE) \
+  declare_preprocessor_constant("FIELDINFO_TAG_OFFSET", FIELDINFO_TAG_OFFSET) \
+                                                                          \
   /************************************************/                      \
   /* InstanceKlass InnerClassAttributeOffset enum */                      \
   /************************************************/                      \
@@ -2483,9 +2479,6 @@
   declare_c2_preprocessor_constant("SAVED_ON_ENTRY_REG_COUNT", SAVED_ON_ENTRY_REG_COUNT) \
   declare_c2_preprocessor_constant("C_SAVED_ON_ENTRY_REG_COUNT", C_SAVED_ON_ENTRY_REG_COUNT)
 
-  /* NOTE that we do not use the last_entry() macro here; it is used  */
-  /* in vmStructs_<os>_<cpu>.hpp's VM_INT_CONSTANTS_OS_CPU macro (and */
-  /* must be present there)                                           */
 
 //--------------------------------------------------------------------------------
 // VM_LONG_CONSTANTS
@@ -2495,7 +2488,7 @@
 // enums, etc., while "declare_preprocessor_constant" must be used for
 // all #defined constants.
 
-#define VM_LONG_CONSTANTS(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
+#define VM_LONG_CONSTANTS(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant) \
                                                                           \
   /*********************/                                                 \
   /* MarkOop constants */                                                 \
@@ -2541,11 +2534,7 @@
   /* Constants in markOop used by CMS. */                                 \
   declare_constant(markOopDesc::cms_shift)                                \
   declare_constant(markOopDesc::cms_mask)                                 \
-  declare_constant(markOopDesc::size_shift)                               \
-
-  /* NOTE that we do not use the last_entry() macro here; it is used   */
-  /* in vmStructs_<os>_<cpu>.hpp's VM_LONG_CONSTANTS_OS_CPU macro (and */
-  /* must be present there)                                            */
+  declare_constant(markOopDesc::size_shift)
 
 
 //--------------------------------------------------------------------------------
@@ -2585,7 +2574,8 @@
 
 // This macro checks the type of a VMStructEntry by comparing pointer types
 #define CHECK_NONSTATIC_VM_STRUCT_ENTRY(typeName, fieldName, type)                 \
- {typeName *dummyObj = NULL; type* dummy = &dummyObj->fieldName; }
+ {typeName *dummyObj = NULL; type* dummy = &dummyObj->fieldName;                   \
+  assert(offset_of(typeName, fieldName) < sizeof(typeName), "Illegal nonstatic struct entry, field offset too large"); }
 
 // This macro checks the type of a volatile VMStructEntry by comparing pointer types
 #define CHECK_VOLATILE_NONSTATIC_VM_STRUCT_ENTRY(typeName, fieldName, type)        \
@@ -2608,9 +2598,6 @@
 // This is a no-op macro for unchecked fields
 #define CHECK_NO_OP(a, b, c)
 
-// This is a no-op macro for the sentinel value
-#define CHECK_SENTINEL()
-
 //
 // Build-specific macros:
 //
@@ -2789,48 +2776,47 @@
 // as long as class VMStructs is a friend
 VMStructEntry VMStructs::localHotSpotVMStructs[] = {
 
-  VM_STRUCTS(GENERATE_NONSTATIC_VM_STRUCT_ENTRY, \
-             GENERATE_STATIC_VM_STRUCT_ENTRY, \
-             GENERATE_UNCHECKED_NONSTATIC_VM_STRUCT_ENTRY, \
-             GENERATE_NONSTATIC_VM_STRUCT_ENTRY, \
-             GENERATE_NONPRODUCT_NONSTATIC_VM_STRUCT_ENTRY, \
-             GENERATE_C1_NONSTATIC_VM_STRUCT_ENTRY, \
-             GENERATE_C2_NONSTATIC_VM_STRUCT_ENTRY, \
-             GENERATE_C1_UNCHECKED_STATIC_VM_STRUCT_ENTRY, \
-             GENERATE_C2_UNCHECKED_STATIC_VM_STRUCT_ENTRY, \
-             GENERATE_VM_STRUCT_LAST_ENTRY)
+  VM_STRUCTS(GENERATE_NONSTATIC_VM_STRUCT_ENTRY,
+             GENERATE_STATIC_VM_STRUCT_ENTRY,
+             GENERATE_UNCHECKED_NONSTATIC_VM_STRUCT_ENTRY,
+             GENERATE_NONSTATIC_VM_STRUCT_ENTRY,
+             GENERATE_NONPRODUCT_NONSTATIC_VM_STRUCT_ENTRY,
+             GENERATE_C1_NONSTATIC_VM_STRUCT_ENTRY,
+             GENERATE_C2_NONSTATIC_VM_STRUCT_ENTRY,
+             GENERATE_C1_UNCHECKED_STATIC_VM_STRUCT_ENTRY,
+             GENERATE_C2_UNCHECKED_STATIC_VM_STRUCT_ENTRY)
 
 #ifndef SERIALGC
-  VM_STRUCTS_PARALLELGC(GENERATE_NONSTATIC_VM_STRUCT_ENTRY, \
+  VM_STRUCTS_PARALLELGC(GENERATE_NONSTATIC_VM_STRUCT_ENTRY,
                         GENERATE_STATIC_VM_STRUCT_ENTRY)
 
-  VM_STRUCTS_CMS(GENERATE_NONSTATIC_VM_STRUCT_ENTRY, \
-                 GENERATE_NONSTATIC_VM_STRUCT_ENTRY, \
+  VM_STRUCTS_CMS(GENERATE_NONSTATIC_VM_STRUCT_ENTRY,
+                 GENERATE_NONSTATIC_VM_STRUCT_ENTRY,
                  GENERATE_STATIC_VM_STRUCT_ENTRY)
 
-  VM_STRUCTS_G1(GENERATE_NONSTATIC_VM_STRUCT_ENTRY, \
+  VM_STRUCTS_G1(GENERATE_NONSTATIC_VM_STRUCT_ENTRY,
                 GENERATE_STATIC_VM_STRUCT_ENTRY)
 #endif // SERIALGC
 
-  VM_STRUCTS_CPU(GENERATE_NONSTATIC_VM_STRUCT_ENTRY, \
-                 GENERATE_STATIC_VM_STRUCT_ENTRY, \
-                 GENERATE_UNCHECKED_NONSTATIC_VM_STRUCT_ENTRY, \
-                 GENERATE_NONSTATIC_VM_STRUCT_ENTRY, \
-                 GENERATE_NONPRODUCT_NONSTATIC_VM_STRUCT_ENTRY, \
-                 GENERATE_C2_NONSTATIC_VM_STRUCT_ENTRY, \
-                 GENERATE_C1_UNCHECKED_STATIC_VM_STRUCT_ENTRY, \
-                 GENERATE_C2_UNCHECKED_STATIC_VM_STRUCT_ENTRY, \
-                 GENERATE_VM_STRUCT_LAST_ENTRY)
+  VM_STRUCTS_CPU(GENERATE_NONSTATIC_VM_STRUCT_ENTRY,
+                 GENERATE_STATIC_VM_STRUCT_ENTRY,
+                 GENERATE_UNCHECKED_NONSTATIC_VM_STRUCT_ENTRY,
+                 GENERATE_NONSTATIC_VM_STRUCT_ENTRY,
+                 GENERATE_NONPRODUCT_NONSTATIC_VM_STRUCT_ENTRY,
+                 GENERATE_C2_NONSTATIC_VM_STRUCT_ENTRY,
+                 GENERATE_C1_UNCHECKED_STATIC_VM_STRUCT_ENTRY,
+                 GENERATE_C2_UNCHECKED_STATIC_VM_STRUCT_ENTRY)
 
-  VM_STRUCTS_OS_CPU(GENERATE_NONSTATIC_VM_STRUCT_ENTRY, \
-                    GENERATE_STATIC_VM_STRUCT_ENTRY, \
-                    GENERATE_UNCHECKED_NONSTATIC_VM_STRUCT_ENTRY, \
-                    GENERATE_NONSTATIC_VM_STRUCT_ENTRY, \
-                    GENERATE_NONPRODUCT_NONSTATIC_VM_STRUCT_ENTRY, \
-                    GENERATE_C2_NONSTATIC_VM_STRUCT_ENTRY, \
-                    GENERATE_C1_UNCHECKED_STATIC_VM_STRUCT_ENTRY, \
-                    GENERATE_C2_UNCHECKED_STATIC_VM_STRUCT_ENTRY, \
-                    GENERATE_VM_STRUCT_LAST_ENTRY)
+  VM_STRUCTS_OS_CPU(GENERATE_NONSTATIC_VM_STRUCT_ENTRY,
+                    GENERATE_STATIC_VM_STRUCT_ENTRY,
+                    GENERATE_UNCHECKED_NONSTATIC_VM_STRUCT_ENTRY,
+                    GENERATE_NONSTATIC_VM_STRUCT_ENTRY,
+                    GENERATE_NONPRODUCT_NONSTATIC_VM_STRUCT_ENTRY,
+                    GENERATE_C2_NONSTATIC_VM_STRUCT_ENTRY,
+                    GENERATE_C1_UNCHECKED_STATIC_VM_STRUCT_ENTRY,
+                    GENERATE_C2_UNCHECKED_STATIC_VM_STRUCT_ENTRY)
+
+  GENERATE_VM_STRUCT_LAST_ENTRY()
 };
 
 VMTypeEntry VMStructs::localHotSpotVMTypes[] = {
@@ -2842,8 +2828,7 @@
            GENERATE_UNSIGNED_INTEGER_VM_TYPE_ENTRY,
            GENERATE_C1_TOPLEVEL_VM_TYPE_ENTRY,
            GENERATE_C2_VM_TYPE_ENTRY,
-           GENERATE_C2_TOPLEVEL_VM_TYPE_ENTRY,
-           GENERATE_VM_TYPE_LAST_ENTRY)
+           GENERATE_C2_TOPLEVEL_VM_TYPE_ENTRY)
 
 #ifndef SERIALGC
   VM_TYPES_PARALLELGC(GENERATE_VM_TYPE_ENTRY,
@@ -2865,8 +2850,7 @@
                GENERATE_UNSIGNED_INTEGER_VM_TYPE_ENTRY,
                GENERATE_C1_TOPLEVEL_VM_TYPE_ENTRY,
                GENERATE_C2_VM_TYPE_ENTRY,
-               GENERATE_C2_TOPLEVEL_VM_TYPE_ENTRY,
-               GENERATE_VM_TYPE_LAST_ENTRY)
+               GENERATE_C2_TOPLEVEL_VM_TYPE_ENTRY)
 
   VM_TYPES_OS_CPU(GENERATE_VM_TYPE_ENTRY,
                   GENERATE_TOPLEVEL_VM_TYPE_ENTRY,
@@ -2875,8 +2859,9 @@
                   GENERATE_UNSIGNED_INTEGER_VM_TYPE_ENTRY,
                   GENERATE_C1_TOPLEVEL_VM_TYPE_ENTRY,
                   GENERATE_C2_VM_TYPE_ENTRY,
-                  GENERATE_C2_TOPLEVEL_VM_TYPE_ENTRY,
-                  GENERATE_VM_TYPE_LAST_ENTRY)
+                  GENERATE_C2_TOPLEVEL_VM_TYPE_ENTRY)
+
+  GENERATE_VM_TYPE_LAST_ENTRY()
 };
 
 VMIntConstantEntry VMStructs::localHotSpotVMIntConstants[] = {
@@ -2885,8 +2870,7 @@
                    GENERATE_PREPROCESSOR_VM_INT_CONSTANT_ENTRY,
                    GENERATE_C1_VM_INT_CONSTANT_ENTRY,
                    GENERATE_C2_VM_INT_CONSTANT_ENTRY,
-                   GENERATE_C2_PREPROCESSOR_VM_INT_CONSTANT_ENTRY,
-                   GENERATE_VM_INT_CONSTANT_LAST_ENTRY)
+                   GENERATE_C2_PREPROCESSOR_VM_INT_CONSTANT_ENTRY)
 
 #ifndef SERIALGC
   VM_INT_CONSTANTS_CMS(GENERATE_VM_INT_CONSTANT_ENTRY)
@@ -2898,15 +2882,15 @@
                        GENERATE_PREPROCESSOR_VM_INT_CONSTANT_ENTRY,
                        GENERATE_C1_VM_INT_CONSTANT_ENTRY,
                        GENERATE_C2_VM_INT_CONSTANT_ENTRY,
-                       GENERATE_C2_PREPROCESSOR_VM_INT_CONSTANT_ENTRY,
-                       GENERATE_VM_INT_CONSTANT_LAST_ENTRY)
+                       GENERATE_C2_PREPROCESSOR_VM_INT_CONSTANT_ENTRY)
 
   VM_INT_CONSTANTS_OS_CPU(GENERATE_VM_INT_CONSTANT_ENTRY,
                           GENERATE_PREPROCESSOR_VM_INT_CONSTANT_ENTRY,
                           GENERATE_C1_VM_INT_CONSTANT_ENTRY,
                           GENERATE_C2_VM_INT_CONSTANT_ENTRY,
-                          GENERATE_C2_PREPROCESSOR_VM_INT_CONSTANT_ENTRY,
-                          GENERATE_VM_INT_CONSTANT_LAST_ENTRY)
+                          GENERATE_C2_PREPROCESSOR_VM_INT_CONSTANT_ENTRY)
+
+  GENERATE_VM_INT_CONSTANT_LAST_ENTRY()
 };
 
 VMLongConstantEntry VMStructs::localHotSpotVMLongConstants[] = {
@@ -2915,22 +2899,21 @@
                     GENERATE_PREPROCESSOR_VM_LONG_CONSTANT_ENTRY,
                     GENERATE_C1_VM_LONG_CONSTANT_ENTRY,
                     GENERATE_C2_VM_LONG_CONSTANT_ENTRY,
-                    GENERATE_C2_PREPROCESSOR_VM_LONG_CONSTANT_ENTRY,
-                    GENERATE_VM_LONG_CONSTANT_LAST_ENTRY)
+                    GENERATE_C2_PREPROCESSOR_VM_LONG_CONSTANT_ENTRY)
 
   VM_LONG_CONSTANTS_CPU(GENERATE_VM_LONG_CONSTANT_ENTRY,
                         GENERATE_PREPROCESSOR_VM_LONG_CONSTANT_ENTRY,
                         GENERATE_C1_VM_LONG_CONSTANT_ENTRY,
                         GENERATE_C2_VM_LONG_CONSTANT_ENTRY,
-                        GENERATE_C2_PREPROCESSOR_VM_LONG_CONSTANT_ENTRY,
-                        GENERATE_VM_LONG_CONSTANT_LAST_ENTRY)
+                        GENERATE_C2_PREPROCESSOR_VM_LONG_CONSTANT_ENTRY)
 
   VM_LONG_CONSTANTS_OS_CPU(GENERATE_VM_LONG_CONSTANT_ENTRY,
                            GENERATE_PREPROCESSOR_VM_LONG_CONSTANT_ENTRY,
                            GENERATE_C1_VM_LONG_CONSTANT_ENTRY,
                            GENERATE_C2_VM_LONG_CONSTANT_ENTRY,
-                           GENERATE_C2_PREPROCESSOR_VM_LONG_CONSTANT_ENTRY,
-                           GENERATE_VM_LONG_CONSTANT_LAST_ENTRY)
+                           GENERATE_C2_PREPROCESSOR_VM_LONG_CONSTANT_ENTRY)
+
+  GENERATE_VM_LONG_CONSTANT_LAST_ENTRY()
 };
 
 // This is used both to check the types of referenced fields and, in
@@ -2945,8 +2928,7 @@
              CHECK_C1_NONSTATIC_VM_STRUCT_ENTRY,
              CHECK_C2_NONSTATIC_VM_STRUCT_ENTRY,
              CHECK_NO_OP,
-             CHECK_NO_OP,
-             CHECK_SENTINEL);
+             CHECK_NO_OP);
 
 #ifndef SERIALGC
   VM_STRUCTS_PARALLELGC(CHECK_NONSTATIC_VM_STRUCT_ENTRY,
@@ -2967,8 +2949,7 @@
                  CHECK_NONPRODUCT_NONSTATIC_VM_STRUCT_ENTRY,
                  CHECK_C2_NONSTATIC_VM_STRUCT_ENTRY,
                  CHECK_NO_OP,
-                 CHECK_NO_OP,
-                 CHECK_SENTINEL);
+                 CHECK_NO_OP);
 
   VM_STRUCTS_OS_CPU(CHECK_NONSTATIC_VM_STRUCT_ENTRY,
                     CHECK_STATIC_VM_STRUCT_ENTRY,
@@ -2977,8 +2958,7 @@
                     CHECK_NONPRODUCT_NONSTATIC_VM_STRUCT_ENTRY,
                     CHECK_C2_NONSTATIC_VM_STRUCT_ENTRY,
                     CHECK_NO_OP,
-                    CHECK_NO_OP,
-                    CHECK_SENTINEL);
+                    CHECK_NO_OP);
 
   VM_TYPES(CHECK_VM_TYPE_ENTRY,
            CHECK_SINGLE_ARG_VM_TYPE_NO_OP,
@@ -2987,8 +2967,7 @@
            CHECK_SINGLE_ARG_VM_TYPE_NO_OP,
            CHECK_C1_TOPLEVEL_VM_TYPE_ENTRY,
            CHECK_C2_VM_TYPE_ENTRY,
-           CHECK_C2_TOPLEVEL_VM_TYPE_ENTRY,
-           CHECK_SENTINEL);
+           CHECK_C2_TOPLEVEL_VM_TYPE_ENTRY);
 
 #ifndef SERIALGC
   VM_TYPES_PARALLELGC(CHECK_VM_TYPE_ENTRY,
@@ -3010,8 +2989,7 @@
                CHECK_SINGLE_ARG_VM_TYPE_NO_OP,
                CHECK_C1_TOPLEVEL_VM_TYPE_ENTRY,
                CHECK_C2_VM_TYPE_ENTRY,
-               CHECK_C2_TOPLEVEL_VM_TYPE_ENTRY,
-               CHECK_SENTINEL);
+               CHECK_C2_TOPLEVEL_VM_TYPE_ENTRY);
 
   VM_TYPES_OS_CPU(CHECK_VM_TYPE_ENTRY,
                   CHECK_SINGLE_ARG_VM_TYPE_NO_OP,
@@ -3020,8 +2998,7 @@
                   CHECK_SINGLE_ARG_VM_TYPE_NO_OP,
                   CHECK_C1_TOPLEVEL_VM_TYPE_ENTRY,
                   CHECK_C2_VM_TYPE_ENTRY,
-                  CHECK_C2_TOPLEVEL_VM_TYPE_ENTRY,
-                  CHECK_SENTINEL);
+                  CHECK_C2_TOPLEVEL_VM_TYPE_ENTRY);
 
   //
   // Split VM_STRUCTS() invocation into two parts to allow MS VC++ 6.0
@@ -3040,53 +3017,49 @@
   // Solstice NFS setup. If everyone switches to local workspaces on
   // Win32, we can put this back in.
 #ifndef _WINDOWS
-  debug_only(VM_STRUCTS(ENSURE_FIELD_TYPE_PRESENT, \
-                        CHECK_NO_OP, \
-                        CHECK_NO_OP, \
-                        CHECK_NO_OP, \
-                        CHECK_NO_OP, \
-                        CHECK_NO_OP, \
-                        CHECK_NO_OP, \
-                        CHECK_NO_OP, \
-                        CHECK_NO_OP, \
-                        CHECK_SENTINEL));
-  debug_only(VM_STRUCTS(CHECK_NO_OP, \
-                        ENSURE_FIELD_TYPE_PRESENT, \
-                        CHECK_NO_OP, \
-                        ENSURE_FIELD_TYPE_PRESENT, \
-                        ENSURE_NONPRODUCT_FIELD_TYPE_PRESENT, \
-                        ENSURE_C1_FIELD_TYPE_PRESENT, \
-                        ENSURE_C2_FIELD_TYPE_PRESENT, \
-                        CHECK_NO_OP, \
-                        CHECK_NO_OP, \
-                        CHECK_SENTINEL));
+  debug_only(VM_STRUCTS(ENSURE_FIELD_TYPE_PRESENT,
+                        CHECK_NO_OP,
+                        CHECK_NO_OP,
+                        CHECK_NO_OP,
+                        CHECK_NO_OP,
+                        CHECK_NO_OP,
+                        CHECK_NO_OP,
+                        CHECK_NO_OP,
+                        CHECK_NO_OP));
+  debug_only(VM_STRUCTS(CHECK_NO_OP,
+                        ENSURE_FIELD_TYPE_PRESENT,
+                        CHECK_NO_OP,
+                        ENSURE_FIELD_TYPE_PRESENT,
+                        ENSURE_NONPRODUCT_FIELD_TYPE_PRESENT,
+                        ENSURE_C1_FIELD_TYPE_PRESENT,
+                        ENSURE_C2_FIELD_TYPE_PRESENT,
+                        CHECK_NO_OP,
+                        CHECK_NO_OP));
 #ifndef SERIALGC
-  debug_only(VM_STRUCTS_PARALLELGC(ENSURE_FIELD_TYPE_PRESENT, \
+  debug_only(VM_STRUCTS_PARALLELGC(ENSURE_FIELD_TYPE_PRESENT,
                                    ENSURE_FIELD_TYPE_PRESENT));
-  debug_only(VM_STRUCTS_CMS(ENSURE_FIELD_TYPE_PRESENT, \
-                            ENSURE_FIELD_TYPE_PRESENT, \
+  debug_only(VM_STRUCTS_CMS(ENSURE_FIELD_TYPE_PRESENT,
+                            ENSURE_FIELD_TYPE_PRESENT,
                             ENSURE_FIELD_TYPE_PRESENT));
-  debug_only(VM_STRUCTS_G1(ENSURE_FIELD_TYPE_PRESENT, \
+  debug_only(VM_STRUCTS_G1(ENSURE_FIELD_TYPE_PRESENT,
                            ENSURE_FIELD_TYPE_PRESENT));
 #endif // SERIALGC
-  debug_only(VM_STRUCTS_CPU(ENSURE_FIELD_TYPE_PRESENT, \
-                            ENSURE_FIELD_TYPE_PRESENT, \
-                            CHECK_NO_OP, \
-                            ENSURE_FIELD_TYPE_PRESENT, \
-                            ENSURE_NONPRODUCT_FIELD_TYPE_PRESENT, \
-                            ENSURE_C2_FIELD_TYPE_PRESENT, \
-                            CHECK_NO_OP, \
-                            CHECK_NO_OP, \
-                            CHECK_SENTINEL));
-  debug_only(VM_STRUCTS_OS_CPU(ENSURE_FIELD_TYPE_PRESENT, \
-                               ENSURE_FIELD_TYPE_PRESENT, \
-                               CHECK_NO_OP, \
-                               ENSURE_FIELD_TYPE_PRESENT, \
-                               ENSURE_NONPRODUCT_FIELD_TYPE_PRESENT, \
-                               ENSURE_C2_FIELD_TYPE_PRESENT, \
-                               CHECK_NO_OP, \
-                               CHECK_NO_OP, \
-                               CHECK_SENTINEL));
+  debug_only(VM_STRUCTS_CPU(ENSURE_FIELD_TYPE_PRESENT,
+                            ENSURE_FIELD_TYPE_PRESENT,
+                            CHECK_NO_OP,
+                            ENSURE_FIELD_TYPE_PRESENT,
+                            ENSURE_NONPRODUCT_FIELD_TYPE_PRESENT,
+                            ENSURE_C2_FIELD_TYPE_PRESENT,
+                            CHECK_NO_OP,
+                            CHECK_NO_OP));
+  debug_only(VM_STRUCTS_OS_CPU(ENSURE_FIELD_TYPE_PRESENT,
+                               ENSURE_FIELD_TYPE_PRESENT,
+                               CHECK_NO_OP,
+                               ENSURE_FIELD_TYPE_PRESENT,
+                               ENSURE_NONPRODUCT_FIELD_TYPE_PRESENT,
+                               ENSURE_C2_FIELD_TYPE_PRESENT,
+                               CHECK_NO_OP,
+                               CHECK_NO_OP));
 #endif
 }
 
@@ -3146,10 +3119,10 @@
     s[len-1] = '\0';
     // tty->print_cr("checking \"%s\" for \"%s\"", s, typeName);
     if (recursiveFindType(origtypes, s, true) == 1) {
-      delete s;
+      delete [] s;
       return 1;
     }
-    delete s;
+    delete [] s;
   }
   const char* start = NULL;
   if (strstr(typeName, "GrowableArray<") == typeName) {
@@ -3165,10 +3138,10 @@
     s[len-1] = '\0';
     // tty->print_cr("checking \"%s\" for \"%s\"", s, typeName);
     if (recursiveFindType(origtypes, s, true) == 1) {
-      delete s;
+      delete [] s;
       return 1;
     }
-    delete s;
+    delete [] s;
   }
   if (strstr(typeName, "const ") == typeName) {
     const char * s = typeName + strlen("const ");
@@ -3182,8 +3155,10 @@
     s[len - 6] = '\0';
     // tty->print_cr("checking \"%s\" for \"%s\"", s, typeName);
     if (recursiveFindType(origtypes, s, true) == 1) {
+      free(s);
       return 1;
     }
+    free(s);
   }
   if (!isRecurse) {
     tty->print_cr("type \"%s\" not found", typeName);
@@ -3206,6 +3181,30 @@
 
 #ifndef PRODUCT
 void VMStructs::test() {
+  // Make sure last entry in the each array is indeed the correct end marker.
+  // The reason why these are static is to make sure they are zero initialized.
+  // Putting them on the stack will leave some garbage in the padding of some fields.
+  static VMStructEntry struct_last_entry = GENERATE_VM_STRUCT_LAST_ENTRY();
+  assert(memcmp(&localHotSpotVMStructs[(sizeof(localHotSpotVMStructs) / sizeof(VMStructEntry)) - 1],
+                &struct_last_entry,
+                sizeof(VMStructEntry)) == 0, "Incorrect last entry in localHotSpotVMStructs");
+
+  static VMTypeEntry type_last_entry = GENERATE_VM_TYPE_LAST_ENTRY();
+  assert(memcmp(&localHotSpotVMTypes[sizeof(localHotSpotVMTypes) / sizeof(VMTypeEntry) - 1],
+                &type_last_entry,
+                sizeof(VMTypeEntry)) == 0, "Incorrect last entry in localHotSpotVMTypes");
+
+  static VMIntConstantEntry int_last_entry = GENERATE_VM_INT_CONSTANT_LAST_ENTRY();
+  assert(memcmp(&localHotSpotVMIntConstants[sizeof(localHotSpotVMIntConstants) / sizeof(VMIntConstantEntry) - 1],
+                &int_last_entry,
+                sizeof(VMIntConstantEntry)) == 0, "Incorrect last entry in localHotSpotVMIntConstants");
+
+  static VMLongConstantEntry long_last_entry = GENERATE_VM_LONG_CONSTANT_LAST_ENTRY();
+  assert(memcmp(&localHotSpotVMLongConstants[sizeof(localHotSpotVMLongConstants) / sizeof(VMLongConstantEntry) - 1],
+                &long_last_entry,
+                sizeof(VMLongConstantEntry)) == 0, "Incorrect last entry in localHotSpotVMLongConstants");
+
+
   // Check for duplicate entries in type array
   for (int i = 0; localHotSpotVMTypes[i].typeName != NULL; i++) {
     for (int j = i + 1; localHotSpotVMTypes[j].typeName != NULL; j++) {
--- a/src/share/vm/utilities/exceptions.hpp	Fri Jan 11 02:02:51 2013 -0800
+++ b/src/share/vm/utilities/exceptions.hpp	Wed Jan 16 18:23:37 2013 -0500
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -267,6 +267,7 @@
 #define THROW_WRAPPED_0(name, oop_to_wrap)  THROW_WRAPPED_(name, oop_to_wrap, 0)
 #define THROW_ARG_0(name, signature, arg)   THROW_ARG_(name, signature, arg, 0)
 #define THROW_MSG_CAUSE_0(name, message, cause) THROW_MSG_CAUSE_(name, message, cause, 0)
+#define THROW_MSG_CAUSE_NULL(name, message, cause) THROW_MSG_CAUSE_(name, message, cause, NULL)
 
 #define THROW_NULL(name)                    THROW_(name, NULL)
 #define THROW_MSG_NULL(name, message)       THROW_MSG_(name, message, NULL)