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 }