--- old/src/hotspot/share/gc/shared/workerDataArray.hpp	2018-11-26 21:51:02.912522709 +0100
+++ new/src/hotspot/share/gc/shared/workerDataArray.hpp	2018-11-26 21:51:02.484520587 +0100
@@ -34,7 +34,7 @@
 class WorkerDataArray  : public CHeapObj<mtGC> {
   friend class WDAPrinter;
 public:
-  static const uint MaxThreadWorkItems = 3;
+  static const uint MaxThreadWorkItems = 4;
 private:
   T*          _data;
   uint        _length;