1 /*
   2  * Copyright (c) 2008, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 4501660
  27  * @summary change diagnostic of -help as 'print this help message and exit'
  28  *            (actually, verify -help does not cause premature exit)
  29  * @modules jdk.jdeps
  30  */
  31 
  32 import java.io.*;
  33 import java.util.zip.*;
  34 
  35 public class T4501660 {
  36     public static void main(String[] args) throws Exception {
  37         new T4501660().run();
  38     }
  39 
  40     public void run() throws IOException {
  41         String testClasses = System.getProperty("test.classes", ".");
  42         String output = javap("-classpath", testClasses, "-help", "T4501660");
  43         verify(output,
  44                "-public", "-protected", "-private", // check -help output is present
  45                "class T4501660"                     // check class output is present
  46                );
  47 
  48         if (errors > 0)
  49             throw new Error(errors + " found.");
  50     }
  51 
  52     String javap(String... args) {
  53         StringWriter sw = new StringWriter();
  54         PrintWriter out = new PrintWriter(sw);
  55         //sun.tools.javap.Main.entry(args);
  56         int rc = com.sun.tools.javap.Main.run(args, out);
  57         if (rc != 0)
  58             throw new Error("javap failed. rc=" + rc);
  59         out.close();
  60         System.out.println(sw);
  61         return sw.toString();
  62     }
  63 
  64     void verify(String output, String... expects) {
  65         for (String expect: expects) {
  66             if (output.indexOf(expect)< 0)
  67                 error(expect + " not found");
  68         }
  69     }
  70 
  71     void error(String msg) {
  72         System.err.println(msg);
  73         errors++;
  74     }
  75 
  76     int errors;
  77 }