1/*
2 * Copyright (c) 2005, 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
24import java.util.Arrays;
25
26import jdk.testlibrary.JDKToolLauncher;
27import jdk.testlibrary.OutputAnalyzer;
28import jdk.testlibrary.ProcessTools;
29
30/*
31 * @test
32 * @summary Unit test for jstack utility
33 * @library /lib/testlibrary
34 * @build jdk.testlibrary.*
35 * @run main BasicJStackTest
36 */
37public class BasicJStackTest {
38
39    private static ProcessBuilder processBuilder = new ProcessBuilder();
40
41    public static void main(String[] args) throws Exception {
42        testJstackNoArgs();
43        testJstack_l();
44    }
45
46    private static void testJstackNoArgs() throws Exception {
47        OutputAnalyzer output = jstack();
48        output.shouldHaveExitValue(0);
49    }
50
51    private static void testJstack_l() throws Exception {
52        OutputAnalyzer output = jstack("-l");
53        output.shouldHaveExitValue(0);
54    }
55
56    private static OutputAnalyzer jstack(String... toolArgs) throws Exception {
57        JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jstack");
58        launcher.addVMArg("-XX:+UsePerfData");
59        if (toolArgs != null) {
60            for (String toolArg : toolArgs) {
61                launcher.addToolArg(toolArg);
62            }
63        }
64        launcher.addToolArg(Long.toString(ProcessTools.getProcessId()));
65
66        processBuilder.command(launcher.getCommand());
67        System.out.println(Arrays.toString(processBuilder.command().toArray()).replace(",", ""));
68        OutputAnalyzer output = ProcessTools.executeProcess(processBuilder);
69        System.out.println(output.getOutput());
70
71        return output;
72    }
73
74}
75