1 /* 2 * Copyright (c) 2001, 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 /** 25 * @test 26 * @bug 4425852 27 * @author Robert Field 28 * 29 * @modules jdk.jdi 30 * @run build VMConnection 31 * @run compile -g EventQueueDisconnectTest.java 32 * @run driver EventQueueDisconnectTest 33 * 34 * @summary EventQueueDisconnectTest checks to see that 35 * VMDisconnectedException is never thrown before VMDisconnectEvent. 36 * 37 * Failure mode for this test is throwing VMDisconnectedException 38 * on vm.eventQueue().remove(); 39 * Does not use a scaffold since we don't want that hiding the exception. 40 */ 41 import com.sun.jdi.*; 42 import com.sun.jdi.event.*; 43 import com.sun.jdi.request.*; 44 45 46 /********** target program **********/ 47 48 class EventQueueDisconnectTarg { 49 public static void main(String args[]) { 50 for (int i=0; i < 10; ++i) { 51 Say(i); 52 } 53 } 54 static void Say(int what) { 55 System.out.println("Say " + what); 56 } 57 } 58 59 /********** test program **********/ 60 61 public class EventQueueDisconnectTest { 62 63 public static void main(String args[]) throws Exception { 64 VMConnection connection = new VMConnection( 65 "com.sun.jdi.CommandLineLaunch:", 66 VirtualMachine.TRACE_NONE); 67 connection.setConnectorArg("main", "EventQueueDisconnectTarg"); 68 String debuggeeVMOptions = VMConnection.getDebuggeeVMOptions(); 69 if (!debuggeeVMOptions.equals("")) { 70 if (connection.connectorArg("options").length() > 0) { 71 throw new IllegalArgumentException("VM options in two places"); 72 } 73 connection.setConnectorArg("options", debuggeeVMOptions); 74 } 75 VirtualMachine vm = connection.open(); 76 EventRequestManager requestManager = vm.eventRequestManager(); 77 MethodEntryRequest req = requestManager.createMethodEntryRequest(); 78 req.addClassFilter("EventQueueDisconnectTarg"); 79 req.setSuspendPolicy(EventRequest.SUSPEND_NONE); 80 req.enable(); 81 82 // We need to have the BE stop when VMDeath comes 83 VMDeathRequest ourVMDeathRequest = requestManager.createVMDeathRequest(); 84 ourVMDeathRequest.setSuspendPolicy(EventRequest.SUSPEND_ALL); 85 ourVMDeathRequest.enable(); 86 87 vm.resume(); 88 while (true) { 89 EventSet set = vm.eventQueue().remove(); 90 Event event = set.eventIterator().nextEvent(); 91 92 System.err.println("EventSet with: " + event.getClass()); 93 94 if (event instanceof VMDisconnectEvent) { 95 System.err.println("Disconnecting successfully"); 96 break; 97 } 98 99 if (event instanceof VMDeathEvent) { 100 System.err.println("Pausing after VM death"); 101 102 // sleep a few seconds 103 try { 104 Thread.sleep(40 * 1000); 105 } catch (InterruptedException exc) { 106 // ignore 107 } 108 } 109 110 set.resume(); 111 } 112 113 System.err.println("EventQueueDisconnectTest passed"); 114 } 115 }