src/share/vm/gc/shenandoah/shenandoahConcurrentThread.cpp

rev 12168 : [mq]: syncbug.patch

*** 107,116 ****
--- 107,117 ----
            TraceCollectorStats tcs(heap->monitoring_support()->concurrent_collection_counters());
            heap->do_evacuation();
          }
  
          if (heap->is_evacuation_in_progress()) {
+           MutexLocker mu(Threads_lock);
            heap->set_evacuation_in_progress(false);
          }
          heap->shenandoahPolicy()->record_phase_start(ShenandoahCollectorPolicy::reset_bitmaps);
          heap->reset_mark_bitmap();
          heap->shenandoahPolicy()->record_phase_end(ShenandoahCollectorPolicy::reset_bitmaps);