diff -r 7384f6a12fc1 -r 78bbf4d43a14 src/share/vm/runtime/safepoint.hpp
--- a/src/share/vm/runtime/safepoint.hpp	Thu May 15 18:23:26 2014 -0400
+++ b/src/share/vm/runtime/safepoint.hpp	Thu May 22 15:52:41 2014 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2012, 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
@@ -174,7 +174,7 @@
 
   // debugging
   static void print_state()                                PRODUCT_RETURN;
-  static void safepoint_msg(const char* format, ...)       PRODUCT_RETURN;
+  static void safepoint_msg(const char* format, ...) ATTRIBUTE_PRINTF(1, 2) PRODUCT_RETURN;
 
   static void deferred_initialize_stat();
   static void print_stat_on_exit();
@@ -240,7 +240,7 @@
   static void create(JavaThread *thread);
   static void destroy(JavaThread *thread);
 
-  void safepoint_msg(const char* format, ...) {
+  void safepoint_msg(const char* format, ...) ATTRIBUTE_PRINTF(2, 3) {
     if (ShowSafepointMsgs) {
       va_list ap;
       va_start(ap, format);