--- old/src/share/vm/classfile/symbolTable.hpp	2013-05-24 14:55:45.728160380 -0700
+++ new/src/share/vm/classfile/symbolTable.hpp	2013-05-24 14:55:45.519931626 -0700
@@ -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
@@ -246,6 +246,9 @@
   // Set if one bucket is out of balance due to hash algorithm deficiency
   static bool _needs_rehashing;
 
+  // Claimed high water mark for parallel chunked scanning
+  static volatile uint _par_claimed_idx;
+
   static oop intern(Handle string_or_null, jchar* chars, int length, TRAPS);
   oop basic_add(int index, Handle string_or_null, jchar* name, int len,
                 unsigned int hashValue, TRAPS);
@@ -274,9 +277,12 @@
   //   Delete pointers to otherwise-unreachable objects.
   static void unlink(BoolObjectClosure* cl);
 
-  // Invoke "f->do_oop" on the locations of all oops in the table.
+  // Serially invoke "f->do_oop" on the locations of all oops in the table.
   static void oops_do(OopClosure* f);
 
+  // Possibly parallel version of the above
+  static void possibly_parallel_oops_do(OopClosure* f, uint worker_id);
+
   // Hashing algorithm, used as the hash value used by the
   //     StringTable for bucket selection and comparison (stored in the
   //     HashtableEntry structures).  This is used in the String.intern() method.
@@ -312,5 +318,8 @@
   // Rehash the symbol table if it gets out of balance
   static void rehash_table();
   static bool needs_rehashing() { return _needs_rehashing; }
+
+  // Parallel chunked scanning
+  static void clear_par_claimed_index() { _par_claimed_idx = 0; }
 };
 #endif // SHARE_VM_CLASSFILE_SYMBOLTABLE_HPP