1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
/*
* Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @bug 4401399
* @summary Simple basic test of jdi Monitor request and event.
* @author Swamy Venkataramanappa
*
* @run build TestScaffold VMConnection TargetListener TargetAdapter
* @run compile -g MonitorEventTest.java
* @run driver MonitorEventTest
*/
import com.sun.jdi.*;
import com.sun.jdi.event.*;
import com.sun.jdi.request.*;
import java.util.*;
/********** target program **********/
class MonitorTestTarg {
public static Object endingMonitor;
public static Object startingMonitor;
public static final long timeout = 30 * 6000; // milliseconds
public static volatile boolean aboutEnterLock;
static void foo() {
System.out.println("Howdy!");
}
public static void main(String[] args){
endingMonitor = new Object();
startingMonitor = new Object();
myThread t1 = new myThread();
foo();
aboutEnterLock = false;
synchronized(endingMonitor) {
// run thread
try {
// start thread
synchronized (startingMonitor) {
t1.start();
startingMonitor.wait(timeout);
}
} catch (InterruptedException e) {
System.out.println("Interrupted exception " + e);
}
Thread.yield();
while(!(aboutEnterLock && t1.getState() == Thread.State.BLOCKED)) {
try {
Thread.sleep(1000);
}catch(Exception x){
System.out.println(x);
}
}
}
try {
t1.join(timeout);
} catch (Exception x){
System.out.println("Exception while thread.join :" + x);
}
System.out.println("Test exiting");
}
}
class myThread extends Thread {
public void run() {
synchronized(MonitorTestTarg.startingMonitor) {
MonitorTestTarg.startingMonitor.notify();
}
// contended enter wait until main thread release monitor
MonitorTestTarg.aboutEnterLock = true;
synchronized (MonitorTestTarg.endingMonitor) {
}
}
}
/********** test program **********/
public class MonitorEventTest extends TestScaffold {
ReferenceType targetClass;
ThreadReference mainThread;
List monitors;
MonitorContendedEnterRequest contendedEnterRequest;
MonitorWaitedRequest monitorWaitedRequest;
MonitorContendedEnteredRequest contendedEnteredRequest;
MonitorWaitRequest monitorWaitRequest;
static int actualWaitCount = 0;
static int actualWaitedCount = 0;
static int actualContendedEnterCount = 0;
static int actualContendedEnteredCount= 0;
MonitorEventTest (String args[]) {
super(args);
}
public static void main(String[] args) throws Exception {
new MonitorEventTest(args).startTests();
}
/********** event handlers **********/
public void monitorContendedEnter(MonitorContendedEnterEvent event) {
actualContendedEnterCount++;
}
public void monitorContendedEntered(MonitorContendedEnteredEvent event) {
actualContendedEnteredCount++;
}
public void monitorWait(MonitorWaitEvent event) {
actualWaitCount++;
}
public void monitorWaited(MonitorWaitedEvent event) {
actualWaitedCount++;
}
/********** test core **********/
protected void runTests() throws Exception {
/*
* Get to the top of main()
* to determine targetClass and mainThread
*/
BreakpointEvent bpe = startToMain("MonitorTestTarg");
targetClass = bpe.location().declaringType();
mainThread = bpe.thread();
int initialSize = mainThread.frames().size();
if (vm().canRequestMonitorEvents()) {
contendedEnterRequest = eventRequestManager().createMonitorContendedEnterRequest();
contendedEnterRequest.setSuspendPolicy(EventRequest.SUSPEND_NONE);
contendedEnterRequest.enable();
contendedEnteredRequest = eventRequestManager().createMonitorContendedEnteredRequest();
contendedEnteredRequest.setSuspendPolicy(EventRequest.SUSPEND_NONE);
contendedEnteredRequest.enable();
monitorWaitRequest = eventRequestManager().createMonitorWaitRequest();
monitorWaitRequest.setSuspendPolicy(EventRequest.SUSPEND_NONE);
monitorWaitRequest.enable();
monitorWaitedRequest = eventRequestManager().createMonitorWaitedRequest();
monitorWaitedRequest.setSuspendPolicy(EventRequest.SUSPEND_NONE);
monitorWaitedRequest.enable();
} else {
System.out.println("request monitor events not supported " );
}
resumeTo("MonitorTestTarg", "foo", "()V");
/*
* resume until end
*/
listenUntilVMDisconnect();
/*
* At least one of each type event should have recevied by this test.
*/
if (vm().canRequestMonitorEvents()) {
if (actualContendedEnterCount == 0) {
failure("Did not receive any contended enter event.");
}
if (actualContendedEnteredCount == 0) {
failure("Did not receive any contended entered event. ");
}
if (actualWaitCount == 0) {
failure("Did not receive any contended monitor wait event");
}
if (actualWaitedCount == 0) {
failure("Did not receive any contended monitor waited event");
}
}
/*
* deal with results of test
* if anything has called failure("foo") testFailed will be true
*/
if (!testFailed) {
println("MonitorEventTest: passed");
} else {
throw new Exception("MonitorEventTest: failed");
}
}
}
|
