--- a/hotspot/src/share/vm/gc_implementation/g1/heapRegionSets.hpp	Mon Jun 20 22:03:13 2011 -0400
+++ b/hotspot/src/share/vm/gc_implementation/g1/heapRegionSets.hpp	Tue Jun 21 15:23:07 2011 -0400
@@ -44,6 +44,7 @@
 
 class MasterFreeRegionList : public FreeRegionList {
 protected:
+  virtual const char* verify_region_extra(HeapRegion* hr);
   virtual bool check_mt_safety();
 
 public: