jjg@46: /*
ohair@554:  * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
jjg@46:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@46:  *
jjg@46:  * This code is free software; you can redistribute it and/or modify it
jjg@46:  * under the terms of the GNU General Public License version 2 only, as
jjg@46:  * published by the Free Software Foundation.
jjg@46:  *
jjg@46:  * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@46:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@46:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
jjg@46:  * version 2 for more details (a copy is included in the LICENSE file that
jjg@46:  * accompanied this code).
jjg@46:  *
jjg@46:  * You should have received a copy of the GNU General Public License version
jjg@46:  * 2 along with this work; if not, write to the Free Software Foundation,
jjg@46:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@46:  *
ohair@554:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554:  * or visit www.oracle.com if you need additional information or have any
ohair@554:  * questions.
jjg@46:  */
jjg@46: 
jjg@46: /*
jjg@46:  * @test
jjg@64:  * @bug 4876942 6715251
jjg@46:  * @summary javap invoked without args does not print help screen
jjg@46:  */
jjg@46: 
jjg@46: import java.io.*;
jjg@46: import java.util.zip.*;
jjg@46: 
jjg@46: public class T4876942 {
jjg@46:     public static void main(String[] args) throws Exception {
jjg@46:         new T4876942().run();
jjg@46:     }
jjg@46: 
jjg@46:     public void run() throws IOException {
jjg@46:         String output = javap();
jjg@46:         verify(output, "-public", "-protected", "-private"); // check that some of the options are listed
jjg@46: 
jjg@46:         if (errors > 0)
jjg@46:             throw new Error(errors + " found.");
jjg@46:     }
jjg@46: 
jjg@46:     String javap(String... args) {
jjg@46:         StringWriter sw = new StringWriter();
jjg@46:         PrintWriter out = new PrintWriter(sw);
jjg@46:         //sun.tools.javap.Main.entry(args);
jjg@46:         int rc = com.sun.tools.javap.Main.run(args, out);
jjg@64:         if (rc != (args.length == 0 ? 2 : 0))
jjg@46:             throw new Error("javap failed. rc=" + rc);
jjg@46:         out.close();
jjg@46:         return sw.toString();
jjg@46:     }
jjg@46: 
jjg@46:     void verify(String output, String... expects) {
jjg@46:         for (String expect: expects) {
jjg@46:             if (output.indexOf(expect)< 0)
jjg@46:                 error(expect + " not found");
jjg@46:         }
jjg@46:     }
jjg@46: 
jjg@46:     void error(String msg) {
jjg@46:         System.err.println(msg);
jjg@46:         errors++;
jjg@46:     }
jjg@46: 
jjg@46:     int errors;
jjg@46: }