diff -r 74533f63b116 -r d2a62e0f25eb src/share/vm/gc_implementation/g1/concurrentG1Refine.hpp
--- a/src/share/vm/gc_implementation/g1/concurrentG1Refine.hpp	Wed Jun 27 15:23:36 2012 +0200
+++ b/src/share/vm/gc_implementation/g1/concurrentG1Refine.hpp	Thu Jun 28 17:03:16 2012 -0400
@@ -34,7 +34,7 @@
 class ConcurrentG1RefineThread;
 class G1RemSet;
 
-class ConcurrentG1Refine: public CHeapObj {
+class ConcurrentG1Refine: public CHeapObj<mtGC> {
   ConcurrentG1RefineThread** _threads;
   int _n_threads;
   int _n_worker_threads;