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 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 * @modules java.management 36 * @build jdk.testlibrary.* 37 * @run main BasicJStackTest 38 */ 39 public class BasicJStackTest { 40 41 private static ProcessBuilder processBuilder = new ProcessBuilder(); 42 43 public static void main(String[] args) throws Exception { 44 testJstackNoArgs(); 45 testJstack_l(); 46 } 47 48 private static void testJstackNoArgs() throws Exception { 49 OutputAnalyzer output = jstack(); 50 output.shouldHaveExitValue(0); 51 } 52 53 private static void testJstack_l() throws Exception { 54 OutputAnalyzer output = jstack("-l"); 55 output.shouldHaveExitValue(0); 56 } 57 58 private static OutputAnalyzer jstack(String... toolArgs) throws Exception { 59 JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jstack"); 60 launcher.addVMArg("-XX:+UsePerfData"); 61 if (toolArgs != null) { 62 for (String toolArg : toolArgs) { 63 launcher.addToolArg(toolArg); 64 } 65 } 66 launcher.addToolArg(Integer.toString(ProcessTools.getProcessId())); 67 68 processBuilder.command(launcher.getCommand()); 69 System.out.println(Arrays.toString(processBuilder.command().toArray()).replace(",", "")); 70 OutputAnalyzer output = ProcessTools.executeProcess(processBuilder); 71 System.out.println(output.getOutput()); 72 73 return output; 74 } 75 76 }