--- a/hotspot/src/share/vm/services/memoryManager.hpp	Wed May 11 13:19:53 2011 -0400
+++ b/hotspot/src/share/vm/services/memoryManager.hpp	Thu May 12 10:30:11 2011 -0700
@@ -166,6 +166,7 @@
   Mutex*       _last_gc_lock;
   GCStatInfo*  _current_gc_stat;
   int          _num_gc_threads;
+  volatile bool _notification_enabled;
 public:
   GCMemoryManager();
   ~GCMemoryManager();
@@ -181,7 +182,7 @@
   void   gc_begin(bool recordGCBeginTime, bool recordPreGCUsage,
                   bool recordAccumulatedGCTime);
   void   gc_end(bool recordPostGCUsage, bool recordAccumulatedGCTime,
-                bool recordGCEndTime, bool countCollection);
+                bool recordGCEndTime, bool countCollection, GCCause::Cause cause);
 
   void        reset_gc_stat()   { _num_collections = 0; _accumulated_timer.reset(); }
 
@@ -189,6 +190,8 @@
   // the collection count. Zero signifies no gc has taken place.
   size_t get_last_gc_stat(GCStatInfo* dest);
 
+  void set_notification_enabled(bool enabled) { _notification_enabled = enabled; }
+  bool is_notification_enabled() { return _notification_enabled; }
   virtual MemoryManager::Name kind() = 0;
 };