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
32import java.io.*;
33import java.util.zip.*;
34
35public 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}
78