1 /* 2 * Copyright (c) 2015, 2018, 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.ArrayList; 25 import java.util.List; 26 import java.util.stream.Collectors; 27 28 import jdk.test.lib.apps.LingeredApp; 29 import jdk.test.lib.apps.LingeredAppWithDeadlock; 30 import jdk.test.lib.Platform; 31 import jdk.test.lib.process.OutputAnalyzer; 32 import jdk.test.lib.process.ProcessTools; 33 34 import jdk.test.lib.Utils; 35 import jdk.test.lib.JDKToolLauncher; 36 37 /** 38 * @test 39 * @summary Test deadlock detection 40 * @requires vm.hasSAandCanAttach 41 * @library /test/lib 42 * @build jdk.test.lib.apps.* jdk.test.lib.Platform 43 * @build DeadlockDetectionTest 44 * @run main DeadlockDetectionTest 45 */ 46 public class DeadlockDetectionTest { 47 48 private static LingeredAppWithDeadlock theApp = null; 49 private static ProcessBuilder processBuilder = new ProcessBuilder(); 50 51 private static OutputAnalyzer jstack(String... toolArgs) throws Exception { 52 JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jstack"); 53 launcher.addVMArg("-XX:+UsePerfData"); 54 if (toolArgs != null) { 55 for (String toolArg : toolArgs) { 56 launcher.addToolArg(toolArg); 57 } 58 } 59 60 processBuilder.command(launcher.getCommand()); 61 System.out.println(processBuilder.command().stream().collect(Collectors.joining(" "))); 62 OutputAnalyzer output = ProcessTools.executeProcess(processBuilder); 63 System.out.println(output.getOutput()); 64 65 return output; 66 } 67 68 public static void main(String[] args) throws Exception { 69 System.out.println("Starting DeadlockDetectionTest"); 70 71 if (!LingeredApp.isLastModifiedWorking()) { 72 // Exact behaviour of the test depends on operating system and the test nature, 73 // so just print the warning and continue 74 System.err.println("Warning! Last modified time doesn't work."); 75 } 76 77 try { 78 List<String> vmArgs = new ArrayList<String>(); 79 vmArgs.add("-XX:+UsePerfData"); 80 vmArgs.addAll(Utils.getVmOptions()); 81 82 theApp = new LingeredAppWithDeadlock(); 83 LingeredApp.startApp(vmArgs, theApp); 84 OutputAnalyzer output = jstack(Long.toString(theApp.getPid())); 85 System.out.println(output.getOutput()); 86 87 if (output.getExitValue() == 3) { 88 System.out.println("Test can't run for some reason. Skipping"); 89 } 90 else { 91 output.shouldHaveExitValue(0); 92 output.shouldContain("Found 1 deadlock."); 93 } 94 95 } finally { 96 LingeredApp.stopApp(theApp); 97 } 98 } 99 }