src/jdk.jshell/share/classes/jdk/internal/jshell/tool/JShellTool.java

rev 48495 : 8189102: All tools should support -?, -h and --help
Reviewed-by: kvn, jjg, weijun, alanb, rfield, ksrini

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2018, 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

@@ -513,11 +513,11 @@
         private final OptionSpecBuilder argQ = parser.accepts("q");
         private final OptionSpecBuilder argS = parser.accepts("s");
         private final OptionSpecBuilder argV = parser.accepts("v");
         private final OptionSpec<String> argR = parser.accepts("R").withRequiredArg();
         private final OptionSpec<String> argC = parser.accepts("C").withRequiredArg();
-        private final OptionSpecBuilder argHelp = parser.acceptsAll(asList("h", "help"));
+        private final OptionSpecBuilder argHelp = parser.acceptsAll(asList("?", "h", "help"));
         private final OptionSpecBuilder argVersion = parser.accepts("version");
         private final OptionSpecBuilder argFullVersion = parser.accepts("full-version");
         private final OptionSpecBuilder argShowVersion = parser.accepts("show-version");
         private final OptionSpecBuilder argHelpExtra = parser.acceptsAll(asList("X", "help-extra"));