T4501660.java revision 45:7708bd6d800d 
1/*
2 * Copyright 2008 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any 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 */
30
31import java.io.*;
32import java.util.zip.*;
33
34public class T4501660 {
35    public static void main(String[] args) throws Exception {
36        new T4501660().run();
37    }
38
39    public void run() throws IOException {
40        String testClasses = System.getProperty("test.classes", ".");
41        String output = javap("-classpath", testClasses, "-help", "T4501660");
42        verify(output,
43               "-public", "-protected", "-private", // check -help output is present
44               "class T4501660"                     // check class output is present
45               );
46
47        if (errors > 0)
48            throw new Error(errors + " found.");
49    }
50
51    String javap(String... args) {
52        StringWriter sw = new StringWriter();
53        PrintWriter out = new PrintWriter(sw);
54        //sun.tools.javap.Main.entry(args);
55        int rc = com.sun.tools.javap.Main.run(args, out);
56        if (rc != 0)
57            throw new Error("javap failed. rc=" + rc);
58        out.close();
59        System.out.println(sw);
60        return sw.toString();
61    }
62
63    void verify(String output, String... expects) {
64        for (String expect: expects) {
65            if (output.indexOf(expect)< 0)
66                error(expect + " not found");
67        }
68    }
69
70    void error(String msg) {
71        System.err.println(msg);
72        errors++;
73    }
74
75    int errors;
76}
77