src/share/classes/sun/tools/jstat/Arguments.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2004, 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
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this

@@ -139,12 +139,13 @@
     }
 
     public Arguments(String[] args) throws IllegalArgumentException {
         int argc = 0;
 
-        if (args.length < 1) {
-            throw new IllegalArgumentException("invalid argument count");
+        if (args.length == 0) {
+            help = true;
+            return;
         }
 
         if ((args[0].compareTo("-?") == 0)
                 || (args[0].compareTo("-help") == 0)) {
             help = true;