--- old/src/share/vm/gc/g1/heapRegionManager.cpp	2017-03-21 16:20:28.378915888 -0400
+++ new/src/share/vm/gc/g1/heapRegionManager.cpp	2017-03-21 16:20:27.166845865 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2017, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -508,3 +508,11 @@
   uint old_val = Atomic::cmpxchg(Claimed, &_claims[region_index], Unclaimed);
   return old_val == Unclaimed;
 }
+
+void G1ParallelizeByRegionsTask::all_heap_regions_work(HeapRegionClosure* cl,
+                                                       uint worker_id,
+                                                       bool concurrent) {
+  G1CollectedHeap* g1h = G1CollectedHeap::heap();
+  g1h->heap_region_par_iterate(cl, worker_id, &_hrclaimer, concurrent);
+}
+