--- a/hotspot/src/share/vm/memory/generation.hpp	Fri May 09 08:34:22 2014 -0700
+++ b/hotspot/src/share/vm/memory/generation.hpp	Fri May 09 16:50:54 2014 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -422,7 +422,7 @@
     // have to guard against non-monotonicity.
     NOT_PRODUCT(
       if (now < _time_of_last_gc) {
-        warning("time warp: "INT64_FORMAT" to "INT64_FORMAT, _time_of_last_gc, now);
+        warning("time warp: "INT64_FORMAT" to "INT64_FORMAT, (int64_t)_time_of_last_gc, (int64_t)now);
       }
     )
     return _time_of_last_gc;