--- a/hotspot/src/share/vm/gc_implementation/g1/concurrentMark.hpp	Fri Jul 10 16:01:20 2009 -0700
+++ b/hotspot/src/share/vm/gc_implementation/g1/concurrentMark.hpp	Tue Jul 14 15:40:39 2009 -0700
@@ -763,6 +763,7 @@
   CMBitMap*                   _nextMarkBitMap;
   // the task queue of this task
   CMTaskQueue*                _task_queue;
+private:
   // the task queue set---needed for stealing
   CMTaskQueueSet*             _task_queues;
   // indicates whether the task has been claimed---this is only  for