diff -r a7c0f60a1294 -r 294e48b4f704 hotspot/src/share/vm/interpreter/bytecodes.hpp
--- a/hotspot/src/share/vm/interpreter/bytecodes.hpp	Mon Sep 28 15:05:02 2015 +0200
+++ b/hotspot/src/share/vm/interpreter/bytecodes.hpp	Tue Sep 29 11:02:08 2015 +0200
@@ -353,8 +353,8 @@
 
  public:
   // Conversion
-  static void        check          (Code code)    { assert(is_defined(code),      err_msg("illegal code: %d", (int)code)); }
-  static void        wide_check     (Code code)    { assert(wide_is_defined(code), err_msg("illegal code: %d", (int)code)); }
+  static void        check          (Code code)    { assert(is_defined(code),      "illegal code: %d", (int)code); }
+  static void        wide_check     (Code code)    { assert(wide_is_defined(code), "illegal code: %d", (int)code); }
   static Code        cast           (int  code)    { return (Code)code; }