1 /* 2 * Copyright (c) 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 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 * @library /lib/testlibrary 41 * @run build Application Shutdown RunnerUtil 42 * @run main/timeout=10 TempDirTest 43 */ 44 45 public class TempDirTest { 46 47 public static void main(String args[]) throws Throwable { 48 49 Path clientTmpDir = Files.createTempDirectory("TempDirTest-client"); 50 clientTmpDir.toFile().deleteOnExit(); 51 Path targetTmpDir = Files.createTempDirectory("TempDirTest-target"); 52 targetTmpDir.toFile().deleteOnExit(); 53 54 // run the test with all possible combinations of setting java.io.tmpdir 55 runExperiment(null, null); 56 runExperiment(clientTmpDir, null); 57 runExperiment(clientTmpDir, targetTmpDir); 58 runExperiment(null, targetTmpDir); 59 60 } 61 62 private static int counter = 0; 63 64 /* 65 * The actual test is in the nested class TestMain. 66 * The responsibility of this class is to: 67 * 1. Start the Application class in a separate process. 68 * 2. Find the pid and shutdown port of the running Application. 69 * 3. Launches the tests in nested class TestMain that will attach to the Application. 70 * 4. Shut down the Application. 71 */ 72 public static void runExperiment(Path clientTmpDir, Path targetTmpDir) throws Throwable { 73 74 System.out.print("### Running tests with overridden tmpdir for"); 75 System.out.print(" client: " + (clientTmpDir == null ? "no" : "yes")); 76 System.out.print(" target: " + (targetTmpDir == null ? "no" : "yes")); 77 System.out.println(" ###"); 78 79 final String pidFile = "TempDirTest.Application.pid-" + counter++; 80 ProcessThread processThread = null; 81 RunnerUtil.ProcessInfo info = null; 82 try { 83 String[] tmpDirArg = null; 84 if (targetTmpDir != null) { 85 tmpDirArg = new String[] {"-Djava.io.tmpdir=" + targetTmpDir}; 86 } 87 processThread = RunnerUtil.startApplication(pidFile, tmpDirArg); 88 info = RunnerUtil.readProcessInfo(pidFile); 89 launchTests(info.pid, clientTmpDir); 90 } catch (Throwable t) { 91 System.out.println("TempDirTest got unexpected exception: " + t); 92 t.printStackTrace(); 93 throw t; 94 } finally { 95 // Make sure the Application process is stopped. 96 RunnerUtil.stopApplication(info.shutdownPort, processThread); 97 } 98 } 99 100 /** 101 * Runs the actual tests in nested class TestMain. 102 * The reason for running the tests in a separate process 103 * is that we need to modify the class path and 104 * the -Djava.io.tmpdir property. 105 */ 106 private static void launchTests(int pid, Path clientTmpDir) throws Throwable { 107 final String sep = File.separator; 108 109 // Need to add jdk/lib/tools.jar to classpath. 110 String classpath = 111 System.getProperty("test.class.path", "") + File.pathSeparator + 112 System.getProperty("test.jdk", ".") + sep + "lib" + sep + "tools.jar"; 113 114 String[] tmpDirArg = null; 115 if (clientTmpDir != null) { 116 tmpDirArg = new String [] {"-Djava.io.tmpdir=" + clientTmpDir}; 117 } 118 119 // Arguments : [-Djava.io.tmpdir=] -classpath cp TempDirTest$TestMain pid 120 String[] args = RunnerUtil.concat( 121 tmpDirArg, 122 new String[] { 123 "-classpath", 124 classpath, 125 "TempDirTest$TestMain", 126 Integer.toString(pid) }); 127 OutputAnalyzer output = ProcessTools.executeTestJvm(args); 128 output.shouldHaveExitValue(0); 129 } 130 131 /** 132 * This is the actual test. It will attach to the running Application 133 * and perform a number of basic attach tests. 134 */ 135 public static class TestMain { 136 public static void main(String args[]) throws Exception { 137 String pid = args[0]; 138 139 // Test 1 - list method should list the target VM 140 System.out.println(" - Test: VirtualMachine.list"); 141 List<VirtualMachineDescriptor> l = VirtualMachine.list(); 142 boolean found = false; 143 for (VirtualMachineDescriptor vmd: l) { 144 if (vmd.id().equals(pid)) { 145 found = true; 146 break; 147 } 148 } 149 if (found) { 150 System.out.println(" - " + pid + " found."); 151 } else { 152 throw new RuntimeException(pid + " not found in VM list"); 153 } 154 155 // Test 2 - try to attach and verify connection 156 157 System.out.println(" - Attaching to application ..."); 158 VirtualMachine vm = VirtualMachine.attach(pid); 159 160 System.out.println(" - Test: system properties in target VM"); 161 Properties props = vm.getSystemProperties(); 162 String value = props.getProperty("attach.test"); 163 if (value == null || !value.equals("true")) { 164 throw new RuntimeException("attach.test property not set"); 165 } 166 System.out.println(" - attach.test property set as expected"); 167 } 168 } 169 }