--- a/hotspot/src/share/vm/gc_implementation/g1/dirtyCardQueue.hpp	Wed Jun 27 15:23:36 2012 +0200
+++ b/hotspot/src/share/vm/gc_implementation/g1/dirtyCardQueue.hpp	Thu Jun 28 17:03:16 2012 -0400
@@ -32,7 +32,7 @@
 
 // A closure class for processing card table entries.  Note that we don't
 // require these closure objects to be stack-allocated.
-class CardTableEntryClosure: public CHeapObj {
+class CardTableEntryClosure: public CHeapObj<mtGC> {
 public:
   // Process the card whose card table entry is "card_ptr".  If returns
   // "false", terminate the iteration early.