diff -r 2da20f966936 -r 5da8bb64b370 src/share/vm/oops/instanceKlass.cpp
--- a/src/share/vm/oops/instanceKlass.cpp	Thu Dec 12 11:05:39 2013 -0800
+++ b/src/share/vm/oops/instanceKlass.cpp	Mon Dec 23 10:26:08 2013 -0800
@@ -2203,7 +2203,6 @@
     obj, \
     PSParallelCompact::adjust_pointer(p), \
     assert_is_in)
-  obj->update_header(cm);
   return size;
 }