--- a/hotspot/src/share/vm/services/memSnapshot.hpp	Wed Apr 17 08:20:02 2013 -0400
+++ b/hotspot/src/share/vm/services/memSnapshot.hpp	Thu Apr 18 10:04:44 2013 -0400
@@ -308,7 +308,7 @@
   }
 };
 
-class StagingArea : public _ValueObj {
+class StagingArea VALUE_OBJ_CLASS_SPEC {
  private:
   MemPointerArray*   _malloc_data;
   MemPointerArray*   _vm_data;