--- old/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp	2014-12-12 02:18:55.889000000 -0500
+++ new/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp	2014-12-12 02:18:55.809000000 -0500
@@ -2069,7 +2069,7 @@
 
     COMPILER2_PRESENT(DerivedPointerTable::clear());
 
-    ref_processor()->enable_discovery(true /*verify_disabled*/, true /*verify_no_refs*/);
+    ref_processor()->enable_discovery();
     ref_processor()->setup_policy(maximum_heap_compaction);
 
     bool marked_for_unloading = false;