--- old/src/share/vm/gc_implementation/shared/vmGCOperations.cpp	2015-01-27 17:28:17.906612336 -0500
+++ new/src/share/vm/gc_implementation/shared/vmGCOperations.cpp	2015-01-27 17:28:17.798606092 -0500
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2015, 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
@@ -205,7 +205,7 @@
 
   if (UseG1GC && ClassUnloadingWithConcurrentMark) {
     G1CollectedHeap* g1h = G1CollectedHeap::heap();
-    g1h->g1_policy()->set_initiate_conc_mark_if_possible();
+    g1h->g1_policy()->collector_state()->set_initiate_conc_mark_if_possible(true);
 
     GCCauseSetter x(g1h, _gc_cause);