--- old/src/share/vm/gc/shared/cardTableRS.cpp	2015-10-08 07:24:03.000000000 -1000
+++ new/src/share/vm/gc/shared/cardTableRS.cpp	2015-10-08 07:24:03.000000000 -1000
@@ -349,7 +349,7 @@
     guarantee(obj == NULL || (HeapWord*)obj >= _boundary,
               err_msg("pointer " PTR_FORMAT " at " PTR_FORMAT " on "
                       "clean card crosses boundary" PTR_FORMAT,
-                      p2i((HeapWord*)obj), p2i(jp), p2i(_boundary)));
+                      p2i(obj), p2i(jp), p2i(_boundary)));
   }
 
 public: