--- old/src/share/vm/oops/metadata.hpp	Fri Feb  1 10:59:15 2013
+++ new/src/share/vm/oops/metadata.hpp	Fri Feb  1 10:59:14 2013
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 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
@@ -32,10 +32,10 @@
 // This is the base class for an internal Class related metadata
 class Metadata : public MetaspaceObj {
   // Debugging hook to check that the metadata has not been deleted.
-  NOT_PRODUCT(int _valid;)
+  int _valid;
  public:
-  NOT_PRODUCT(Metadata()     { _valid = 0; })
-  NOT_PRODUCT(bool is_valid() const volatile { return _valid == 0; })
+  Metadata()     { _valid = 0; }
+  bool is_valid() const volatile { return _valid == 0; }
 
   int identity_hash()                { return (int)(uintptr_t)this; }