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 6715251
27 * @summary javap should be consistent with javac and return 2 if given no arguments
28 * @modules jdk.jdeps/com.sun.tools.javap
29 */
30
31import java.io.*;
32import java.util.*;
33
34public class T6715251 {
35    public static void main(String... args) throws Exception {
36        new T6715251().run();
37    }
38
39    void run() throws Exception {
40        String testClasses = System.getProperty("test.classes", ".");
41
42        test(2);
43        test(0, "-help");
44        test(0, "-version");
45        test(0, "-fullversion");
46        test(0, "-classpath", testClasses, "T6715251");
47
48        if (errors > 0)
49            throw new Exception(errors + " errors received");
50    }
51
52    void test(int expect, String ... args) {
53        int rc = javap(args);
54        if (rc != expect)
55            error("bad result: expected: " + expect + ", found " + rc + "\n"
56                  + log);
57
58    }
59
60    int javap(String... args) {
61        StringWriter sw = new StringWriter();
62        PrintWriter pw = new PrintWriter(sw);
63        int rc = com.sun.tools.javap.Main.run(args, pw);
64        log = sw.toString();
65        return rc;
66    }
67
68    void error(String msg) {
69        System.err.println(msg);
70        errors++;
71    }
72
73    String log;
74    int errors;
75}
76