--- old/src/share/vm/gc/g1/g1CollectedHeap.hpp	2015-12-21 15:52:26.259162269 +0100
+++ new/src/share/vm/gc/g1/g1CollectedHeap.hpp	2015-12-21 15:52:26.167159541 +0100
@@ -984,6 +984,8 @@
   // The rem set and barrier set.
   G1RemSet* g1_rem_set() const { return _g1_rem_set; }
 
+  void scrub_rem_set(BitMap* region_bm, BitMap* card_bm);
+  
   unsigned get_gc_time_stamp() {
     return _gc_time_stamp;
   }