--- old/src/hotspot/share/gc/shared/taskqueue.hpp	2018-06-21 16:45:13.786301687 -0400
+++ new/src/hotspot/share/gc/shared/taskqueue.hpp	2018-06-21 16:45:13.535300452 -0400
@@ -396,9 +396,12 @@
 
 template<class T, MEMFLAGS F>
 class GenericTaskQueueSet: public TaskQueueSetSuperImpl<F> {
+  static const uint INVALID_QUEUE_ID = uint(-1);
+
 private:
-  uint _n;
-  T** _queues;
+  uint  _n;
+  T**   _queues;
+  uint* _last_stolen_queues;
 
 public:
   typedef typename T::element_type E;