src/share/vm/gc/shared/collectedHeap.hpp

*** 436,445 ****
--- 436,451 ----
    // If the CollectedHeap was asked to defer a store barrier above,
    // this informs it to flush such a deferred store barrier to the
    // remembered set.
    virtual void flush_deferred_store_barrier(JavaThread* thread);
  
+   // Should return true if the reference pending list lock is
+   // acquired from non-Java threads, such as a concurrent GC thread.
+   virtual bool needs_reference_pending_list_locker_thread() const {
+     return false;
+   }
+ 
    // Perform a collection of the heap; intended for use in implementing
    // "System.gc".  This probably implies as full a collection as the
    // "CollectedHeap" supports.
    virtual void collect(GCCause::Cause cause) = 0;