--- a/src/share/vm/utilities/debug.hpp	Fri Apr 22 15:22:45 2011 +0200
+++ b/src/share/vm/utilities/debug.hpp	Fri Apr 22 15:30:53 2011 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2011, 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
@@ -25,6 +25,7 @@
 #ifndef SHARE_VM_UTILITIES_DEBUG_HPP
 #define SHARE_VM_UTILITIES_DEBUG_HPP
 
+#include "prims/jvm.h"
 #include "utilities/globalDefinitions.hpp"
 
 #include <stdarg.h>
@@ -48,7 +49,7 @@
 FormatBuffer<bufsz>::FormatBuffer(const char * format, ...) {
   va_list argp;
   va_start(argp, format);
-  vsnprintf(_buf, bufsz, format, argp);
+  jio_vsnprintf(_buf, bufsz, format, argp);
   va_end(argp);
 }
 
@@ -61,7 +62,7 @@
 
   va_list argp;
   va_start(argp, format);
-  vsnprintf(buf_end, bufsz - len, format, argp);
+  jio_vsnprintf(buf_end, bufsz - len, format, argp);
   va_end(argp);
 }