--- old/src/share/vm/gc/g1/heapRegionManager.cpp	2017-06-27 15:06:16.518330886 +0200
+++ new/src/share/vm/gc/g1/heapRegionManager.cpp	2017-06-27 15:06:16.390326906 +0200
@@ -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
@@ -327,7 +327,7 @@
   return true;
 }
 
-void HeapRegionManager::par_iterate(HeapRegionClosure* blk, uint worker_id, HeapRegionClaimer* hrclaimer, bool concurrent) const {
+void HeapRegionManager::par_iterate(HeapRegionClosure* blk, uint worker_id, HeapRegionClaimer* hrclaimer) const {
   const uint start_index = hrclaimer->start_region_for_worker(worker_id);
 
   // Every worker will actually look at all regions, skipping over regions that