1 /* 2 * Copyright (c) 2014, 2017, 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.Map; 27 28 import jdk.testlibrary.ProcessTools; 29 30 import com.sun.jdi.Bootstrap; 31 import com.sun.jdi.VirtualMachine; 32 import com.sun.jdi.connect.AttachingConnector; 33 import com.sun.jdi.connect.Connector; 34 import com.sun.jdi.connect.IllegalConnectorArgumentsException; 35 36 /** 37 * @test 38 * @bug 4527279 39 * @summary Unit test for ProcessAttachingConnector 40 * 41 * @library /lib/testlibrary 42 * @modules java.management 43 * jdk.jdi 44 * @build jdk.testlibrary.* ProcessAttachTest 45 * @run driver ProcessAttachTest 46 */ 47 48 class ProcessAttachTestTarg { 49 public static void main(String args[]) throws Exception { 50 // Write something that can be read by the driver 51 System.out.println("Debuggee started"); 52 System.out.flush(); 53 for (;;) { 54 Thread.sleep(100); 55 } 56 } 57 } 58 59 public class ProcessAttachTest { 60 61 public static final String TESTCLASSES = System.getProperty("test.classes"); 62 63 public static void main(String[] args) throws Exception { 64 65 System.out.println("Test 1: Debuggee start with suspend=n"); 66 runTest("-agentlib:jdwp=transport=dt_socket,server=y,suspend=n"); 67 68 System.out.println("Test 2: Debuggee start with suspend=y"); 69 runTest("-agentlib:jdwp=transport=dt_socket,server=y,suspend=y"); 70 71 } 72 73 private static void runTest(String jdwpArg) throws Exception { 74 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 75 jdwpArg, 76 "-classpath", TESTCLASSES, 77 "ProcessAttachTestTarg"); 78 Process p = null; 79 try { 80 p = pb.start(); 81 82 // Wait for the process to start 83 InputStream is = p.getInputStream(); 84 is.read(); 85 86 // Attach a debugger 87 tryDebug(p.pid()); 88 } finally { 89 p.destroyForcibly(); 90 } 91 } 92 93 private static void tryDebug(long pid) throws IOException, 94 IllegalConnectorArgumentsException { 95 AttachingConnector ac = Bootstrap.virtualMachineManager().attachingConnectors() 96 .stream() 97 .filter(c -> c.name().equals("com.sun.jdi.ProcessAttach")) 98 .findFirst() 99 .orElseThrow(() -> new RuntimeException("Unable to locate ProcessAttachingConnector")); 100 101 Map<String, Connector.Argument> args = ac.defaultArguments(); 102 Connector.StringArgument arg = (Connector.StringArgument) args 103 .get("pid"); 104 arg.setValue("" + pid); 105 106 System.out.println("Debugger is attaching to: " + pid + " ..."); 107 VirtualMachine vm = ac.attach(args); 108 109 // list all threads 110 System.out.println("Attached! Now listing threads ..."); 111 vm.allThreads().stream().forEach(System.out::println); 112 113 System.out.println("Debugger done."); 114 vm.dispose(); 115 } 116 }