--- old/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp	2014-02-25 10:33:54.501092714 +0100
+++ new/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp	2014-02-25 10:33:54.421092715 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2014, 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
@@ -1657,6 +1657,9 @@
   // that were not successfully evacuated are not migrated.
   void migrate_strong_code_roots();
 
+  // Free up superfluous code root memory.
+  void purge_code_root_memory();
+
   // During an initial mark pause, mark all the code roots that
   // point into regions *not* in the collection set.
   void mark_strong_code_roots(uint worker_id);