--- old/src/share/vm/memory/genCollectedHeap.cpp 2014-07-10 11:11:38.768999436 +0200 +++ new/src/share/vm/memory/genCollectedHeap.cpp 2014-07-10 11:11:38.684997006 +0200 @@ -1088,7 +1088,7 @@ guarantee(_n_gens = 2, "Wrong number of generations"); Generation* old_gen = _gens[1]; // Start by compacting into same gen. - CompactPoint cp(old_gen, NULL, NULL); + CompactPoint cp(old_gen); old_gen->prepare_for_compaction(&cp); Generation* young_gen = _gens[0]; young_gen->prepare_for_compaction(&cp);