src/share/vm/services/heapDumper.cpp

*** 1706,1719 ****
  
    HandleMark hm;
    CollectedHeap* ch = Universe::heap();
  
    ch->ensure_parsability(false); // must happen, even if collection does
!                                  // not happen (e.g. due to GC_locker)
  
    if (_gc_before_heap_dump) {
!     if (GC_locker::is_active()) {
        warning("GC locker is held; pre-heapdump GC was skipped");
      } else {
        ch->collect_as_vm_thread(GCCause::_heap_dump);
      }
    }
--- 1706,1719 ----
  
    HandleMark hm;
    CollectedHeap* ch = Universe::heap();
  
    ch->ensure_parsability(false); // must happen, even if collection does
!                                  // not happen (e.g. due to GCLocker)
  
    if (_gc_before_heap_dump) {
!     if (GCLocker::is_active()) {
        warning("GC locker is held; pre-heapdump GC was skipped");
      } else {
        ch->collect_as_vm_thread(GCCause::_heap_dump);
      }
    }