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 java.io.IOException; 25 import java.io.InputStream; 26 import java.util.List; 27 import java.util.Map; 28 29 import jdk.testlibrary.ProcessTools; 30 31 import com.sun.jdi.Bootstrap; 32 import com.sun.jdi.ThreadReference; 33 import com.sun.jdi.VirtualMachine; 34 import com.sun.jdi.connect.AttachingConnector; 35 import com.sun.jdi.connect.Connector; 36 import com.sun.jdi.connect.IllegalConnectorArgumentsException; 37 38 /** 39 * @test 40 * @bug 4527279 41 * @summary Unit test for ProcessAttachingConnector 42 * 43 * @library /lib/testlibrary 44 * @modules java.management 45 * jdk.jdi 46 * @build jdk.testlibrary.* ProcessAttachTest 47 * @run driver ProcessAttachTest 48 */ 49 50 class ProcessAttachTestTarg { 51 public static void main(String args[]) throws Exception { 52 // Write something that can be read by the driver 53 System.out.println("Debuggee started"); 54 System.out.flush(); 55 for (;;) { 56 Thread.sleep(100); 57 } 58 } 59 } 60 61 public class ProcessAttachTest { 62 63 public static final String TESTCLASSES = System.getProperty("test.classes"); 64 65 public static void main(String[] args) throws Exception { 66 67 System.out.println("Test 1: Debuggee start with suspend=n"); 68 runTest("-agentlib:jdwp=transport=dt_socket,server=y,suspend=n"); 69 70 System.out.println("Test 2: Debuggee start with suspend=y"); 71 runTest("-agentlib:jdwp=transport=dt_socket,server=y,suspend=y"); 72 73 } 74 75 private static void runTest(String jdwpArg) throws Exception { 76 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 77 jdwpArg, 78 "-classpath", TESTCLASSES, 79 "ProcessAttachTestTarg"); 80 Process p = null; 81 try { 82 p = pb.start(); 83 84 // Wait for the process to start 85 InputStream is = p.getInputStream(); 86 is.read(); 87 88 // Attach a debugger 89 tryDebug(p.getPid()); 90 } finally { 91 p.destroyForcibly(); 92 } 93 } 94 95 private static void tryDebug(long pid) throws IOException, 96 IllegalConnectorArgumentsException { 97 AttachingConnector ac = Bootstrap.virtualMachineManager().attachingConnectors() 98 .stream() 99 .filter(c -> c.name().equals("com.sun.jdi.ProcessAttach")) 100 .findFirst() 101 .orElseThrow(() -> new RuntimeException("Unable to locate ProcessAttachingConnector")); 102 103 Map<String, Connector.Argument> args = ac.defaultArguments(); 104 Connector.StringArgument arg = (Connector.StringArgument) args 105 .get("pid"); 106 arg.setValue("" + pid); 107 108 System.out.println("Debugger is attaching to: " + pid + " ..."); 109 VirtualMachine vm = ac.attach(args); 110 111 // list all threads 112 System.out.println("Attached! Now listing threads ..."); 113 vm.allThreads().stream().forEach(System.out::println); 114 115 System.out.println("Debugger done."); 116 vm.dispose(); 117 } 118 }