837   friend class FollowStackClosure;

   837   friend class FollowStackClosure;

   838   friend class AdjustPointerClosure;

   838   friend class AdjustPointerClosure;

   839   friend class AdjustKlassClosure;

   839   friend class AdjustKlassClosure;

   840   friend class FollowKlassClosure;

   840   friend class FollowKlassClosure;

   841   friend class FollowRootClosure;

   841   friend class FollowRootClosure;

   843   friend class RefProcTaskProxy;

   843   friend class RefProcTaskProxy;

   844 

   844 

   845  private:

   845  private:

   846   static elapsedTimer         _accumulated_time;

   846   static elapsedTimer         _accumulated_time;

   847   static unsigned int         _total_invocations;

   847   static unsigned int         _total_invocations;