--- a/hotspot/src/share/vm/gc/g1/g1ConcurrentMark.cpp	Tue May 03 12:33:10 2016 +0200
+++ b/hotspot/src/share/vm/gc/g1/g1ConcurrentMark.cpp	Wed May 04 10:06:00 2016 +0200
@@ -110,8 +110,7 @@
   _bmStartWord = heap.start();
   _bmWordSize = heap.word_size();
 
-  _bm.set_map((BitMap::bm_word_t*) storage->reserved().start());
-  _bm.set_size(_bmWordSize >> _shifter);
+  _bm = BitMapView((BitMap::bm_word_t*) storage->reserved().start(), _bmWordSize >> _shifter);
 
   storage->set_mapping_changed_listener(&_listener);
 }