diff -r 64752e56d721 -r be27e1b6a4b9 hotspot/src/share/vm/runtime/task.hpp
--- a/hotspot/src/share/vm/runtime/task.hpp	Wed Jun 27 15:23:36 2012 +0200
+++ b/hotspot/src/share/vm/runtime/task.hpp	Thu Jun 28 17:03:16 2012 -0400
@@ -35,7 +35,7 @@
 //   ...
 //   pf.disenroll();
 
-class PeriodicTask: public CHeapObj {
+class PeriodicTask: public CHeapObj<mtInternal> {
  public:
   // Useful constants.
   // The interval constants are used to ensure the declared interval