1 /* 2 * Copyright (c) 2014, 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 com.sun.tools.attach.*; 25 26 import java.nio.file.Files; 27 import java.nio.file.Path; 28 import java.util.Properties; 29 import java.util.List; 30 import java.io.File; 31 32 import jdk.testlibrary.OutputAnalyzer; 33 import jdk.testlibrary.ProcessTools; 34 import jdk.testlibrary.ProcessThread; 35 36 /* 37 * @test 38 * @bug 8033104 39 * @summary Test to make sure attach and jvmstat works correctly when java.io.tmpdir is set 40 * @modules jdk.jartool/sun.tools.jar 41 * @library /lib/testlibrary 42 * @modules java.management 43 * jdk.jartool/sun.tools.jar 44 * @run build jdk.testlibrary.* Application RunnerUtil 45 * @run main/timeout=200 TempDirTest 46 */ 47 48 /* 49 * This test runs with an extra long timeout since it takes a really long time with -Xcomp 50 * when starting many processes. 51 */ 52 53 public class TempDirTest { 54 55 private static long startTime; 56 57 public static void main(String args[]) throws Throwable { 58 59 startTime = System.currentTimeMillis(); 60 61 Path clientTmpDir = Files.createTempDirectory("TempDirTest-client"); 62 clientTmpDir.toFile().deleteOnExit(); 63 Path targetTmpDir = Files.createTempDirectory("TempDirTest-target"); 64 targetTmpDir.toFile().deleteOnExit(); 65 66 // run the test with all possible combinations of setting java.io.tmpdir 67 runExperiment(null, null); 68 runExperiment(clientTmpDir, null); 69 runExperiment(clientTmpDir, targetTmpDir); 70 runExperiment(null, targetTmpDir); 71 72 } 73 74 private static int counter = 0; 75 76 /* 77 * The actual test is in the nested class TestMain. 78 * The responsibility of this class is to: 79 * 1. Start the Application class in a separate process. 80 * 2. Find the pid and shutdown port of the running Application. 81 * 3. Launches the tests in nested class TestMain that will attach to the Application. 82 * 4. Shut down the Application. 83 */ 84 public static void runExperiment(Path clientTmpDir, Path targetTmpDir) throws Throwable { 85 86 System.out.print("### Running tests with overridden tmpdir for"); 87 System.out.print(" client: " + (clientTmpDir == null ? "no" : "yes")); 88 System.out.print(" target: " + (targetTmpDir == null ? "no" : "yes")); 89 System.out.println(" ###"); 90 91 long elapsedTime = (System.currentTimeMillis() - startTime) / 1000; 92 System.out.println("Started after " + elapsedTime + "s"); 93 94 final String pidFile = "TempDirTest.Application.pid-" + counter++; 95 ProcessThread processThread = null; 96 try { 97 String[] tmpDirArg = null; 98 if (targetTmpDir != null) { 99 tmpDirArg = new String[] {"-Djava.io.tmpdir=" + targetTmpDir}; 100 } 101 processThread = RunnerUtil.startApplication(tmpDirArg); 102 launchTests(processThread.getPid(), clientTmpDir); 103 } catch (Throwable t) { 104 System.out.println("TempDirTest got unexpected exception: " + t); 105 t.printStackTrace(); 106 throw t; 107 } finally { 108 // Make sure the Application process is stopped. 109 RunnerUtil.stopApplication(processThread); 110 } 111 112 elapsedTime = (System.currentTimeMillis() - startTime) / 1000; 113 System.out.println("Completed after " + elapsedTime + "s"); 114 115 } 116 117 /** 118 * Runs the actual tests in nested class TestMain. 119 * The reason for running the tests in a separate process 120 * is that we need to modify the class path and 121 * the -Djava.io.tmpdir property. 122 */ 123 private static void launchTests(long pid, Path clientTmpDir) throws Throwable { 124 final String sep = File.separator; 125 126 String classpath = 127 System.getProperty("test.class.path", ""); 128 129 String[] tmpDirArg = null; 130 if (clientTmpDir != null) { 131 tmpDirArg = new String [] {"-Djava.io.tmpdir=" + clientTmpDir}; 132 } 133 134 // Arguments : [-Djava.io.tmpdir=] -classpath cp TempDirTest$TestMain pid 135 String[] args = RunnerUtil.concat( 136 tmpDirArg, 137 new String[] { 138 "-classpath", 139 classpath, 140 "TempDirTest$TestMain", 141 Long.toString(pid) }); 142 OutputAnalyzer output = ProcessTools.executeTestJvm(args); 143 output.shouldHaveExitValue(0); 144 } 145 146 /** 147 * This is the actual test. It will attach to the running Application 148 * and perform a number of basic attach tests. 149 */ 150 public static class TestMain { 151 public static void main(String args[]) throws Exception { 152 String pid = args[0]; 153 154 // Test 1 - list method should list the target VM 155 System.out.println(" - Test: VirtualMachine.list"); 156 List<VirtualMachineDescriptor> l = VirtualMachine.list(); 157 boolean found = false; 158 for (VirtualMachineDescriptor vmd: l) { 159 if (vmd.id().equals(pid)) { 160 found = true; 161 break; 162 } 163 } 164 if (found) { 165 System.out.println(" - " + pid + " found."); 166 } else { 167 throw new RuntimeException(pid + " not found in VM list"); 168 } 169 170 // Test 2 - try to attach and verify connection 171 172 System.out.println(" - Attaching to application ..."); 173 VirtualMachine vm = VirtualMachine.attach(pid); 174 175 System.out.println(" - Test: system properties in target VM"); 176 Properties props = vm.getSystemProperties(); 177 String value = props.getProperty("attach.test"); 178 if (value == null || !value.equals("true")) { 179 throw new RuntimeException("attach.test property not set"); 180 } 181 System.out.println(" - attach.test property set as expected"); 182 } 183 } 184 }