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 com.sun.tools.attach.VirtualMachine; 25 import com.sun.tools.attach.AttachNotSupportedException; 26 import java.io.File; 27 import jdk.testlibrary.OutputAnalyzer; 28 import jdk.testlibrary.ProcessTools; 29 import jdk.testlibrary.ProcessThread; 30 31 /* 32 * @test 33 * @bug 6173612 6273707 6277253 6335921 6348630 6342019 6381757 34 * @summary Basic unit tests for the VM attach mechanism. 35 * @modules jdk.jartool/sun.tools.jar 36 * @library /lib/testlibrary 37 * @modules java.management 38 * jdk.attach 39 * jdk.jartool/sun.tools.jar 40 * @run build jdk.testlibrary.* Application 41 * @run main PermissionTest 42 * 43 * Unit test for Attach API - 44 * this checks that a SecurityException is thrown as expected. 45 */ 46 public class PermissionTest { 47 48 /* 49 * The actual test is in the nested class TestMain. 50 * The responsibility of this class is to: 51 * 1. Start the Application class in a separate process. 52 * 2. Find the pid and shutdown port of the running Application. 53 * 3. Run the tests in TstMain that will attach to the Application. 54 * 4. Shut down the Application. 55 */ 56 public static void main(String args[]) throws Throwable { 57 ProcessThread processThread = null; 58 try { 59 processThread = RunnerUtil.startApplication(); 60 runTests(processThread.getPid()); 61 } catch (Throwable t) { 62 System.out.println("TestPermission got unexpected exception: " + t); 63 t.printStackTrace(); 64 throw t; 65 } finally { 66 // Make sure the Application process is stopped. 67 RunnerUtil.stopApplication(processThread); 68 } 69 } 70 71 /** 72 * Runs the actual test the nested class TestMain. 73 * The test is run in a separate process because we need to add to the classpath. 74 */ 75 private static void runTests(long pid) throws Throwable { 76 final String sep = File.separator; 77 78 String classpath = 79 System.getProperty("test.class.path", ""); 80 String testSrc = System.getProperty("test.src", "") + sep; 81 82 // Use a policy that will NOT allow attach. Test will verify exception. 83 String[] args = { 84 "-classpath", 85 classpath, 86 "-Djava.security.manager", 87 String.format("-Djava.security.policy=%sjava.policy.deny", testSrc), 88 "PermissionTest$TestMain", 89 Long.toString(pid), 90 "true" }; 91 OutputAnalyzer output = ProcessTools.executeTestJvm(args); 92 output.shouldHaveExitValue(0); 93 94 // Use a policy that will allow attach. 95 args = new String[] { 96 "-classpath", 97 classpath, 98 "-Djava.security.manager", 99 String.format("-Djava.security.policy=%sjava.policy.allow", testSrc), 100 "PermissionTest$TestMain", 101 Long.toString(pid), 102 "false" }; 103 output = ProcessTools.executeTestJvm(args); 104 output.shouldHaveExitValue(0); 105 } 106 107 /** 108 * This is the actual test code. It will attach to the Application and verify 109 * that we get a SecurityException when that is expected. 110 */ 111 public static class TestMain { 112 public static void main(String args[]) throws Exception { 113 SecurityManager sm = System.getSecurityManager(); 114 if (sm == null) { 115 throw new RuntimeException("Test configuration error - no security manager set"); 116 } 117 118 String pid = args[0]; 119 boolean shouldFail = Boolean.parseBoolean(args[1]); 120 121 try { 122 VirtualMachine.attach(pid).detach(); 123 if (shouldFail) { 124 throw new RuntimeException("SecurityException should be thrown"); 125 } 126 System.out.println(" - attached to target VM as expected."); 127 } catch (Exception x) { 128 // AttachNotSupportedException thrown when no providers can be loaded 129 if (shouldFail && ((x instanceof AttachNotSupportedException) || 130 (x instanceof SecurityException))) { 131 System.out.println(" - exception thrown as expected."); 132 } else { 133 throw x; 134 } 135 } 136 } 137 } 138 }