--- a/hotspot/src/share/vm/oops/constantPoolOop.hpp	Tue Jun 01 11:48:33 2010 -0700
+++ b/hotspot/src/share/vm/oops/constantPoolOop.hpp	Wed Jun 02 22:45:42 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2009, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -434,6 +434,10 @@
   // Debugging
   const char* printable_name_at(int which) PRODUCT_RETURN0;
 
+#ifdef ASSERT
+  enum { CPCACHE_INDEX_TAG = 0x10000 };  // helps keep CP cache indices distinct from CP indices
+#endif //ASSERT
+
  private:
 
   symbolOop impl_name_ref_at(int which, bool uncached);
@@ -441,7 +445,7 @@
   int       impl_klass_ref_index_at(int which, bool uncached);
   int       impl_name_and_type_ref_index_at(int which, bool uncached);
 
-  int remap_instruction_operand_from_cache(int operand);
+  int remap_instruction_operand_from_cache(int operand);  // operand must be biased by CPCACHE_INDEX_TAG
 
   // Used while constructing constant pool (only by ClassFileParser)
   jint klass_index_at(int which) {