1 /*
2  * Copyright (c) 2008, 2016, 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/com.sun.tools.javap
30  */
31 
32 import java.io.*;
33 import java.util.zip.*;
34 
35 public class T4501660 {
main(String[] args)36     public static void main(String[] args) throws Exception {
37         new T4501660().run();
38     }
39 
run()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 
javap(String... args)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 
verify(String output, String... expects)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 
error(String msg)71     void error(String msg) {
72         System.err.println(msg);
73         errors++;
74     }
75 
76     int errors;
77 }
78