--- old/src/share/vm/services/diagnosticArgument.cpp	2019-01-28 17:44:44.000000000 +0800
+++ new/src/share/vm/services/diagnosticArgument.cpp	2019-01-28 17:44:44.000000000 +0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2019, 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
@@ -280,7 +280,7 @@
                                                   size_t len, TRAPS) {
   if (str == NULL) {
     THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
-              "Integer parsing error nanotime value: syntax error");
+              "Parsing error memory size value: syntax error, value is null\n");
   }
 
   if (*str == '-') {