1 /*

     2  * Copyright (c) 2005, 2014, 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 import java.util.Arrays;

    25 

    26 import jdk.testlibrary.JDKToolLauncher;

    27 import jdk.testlibrary.OutputAnalyzer;

    28 import jdk.testlibrary.ProcessTools;

    29 

    30 /*

    31  * @test

    32  * @bug 6260070

    33  * @summary Unit test for jstack utility

    34  * @library /lib/testlibrary

    35  * @run main BasicJStackTest

    36  */

    37 public 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(Integer.toString(ProcessTools.getProcessId()));

    65 

    66         processBuilder.command(launcher.getCommand());

    67         System.out.println(Arrays.toString(processBuilder.command().toArray()).replace(",", ""));

    68         OutputAnalyzer output = new OutputAnalyzer(processBuilder.start());

    69         System.out.println(output.getOutput());

    70 

    71         return output;

    72     }

    73 

    74 }