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