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
|
/*
* 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 6222826
* @summary Test that tasks are cancelled properly when
* monitors are started and stopped in a loop.
* @author Luis-Miguel Alventosa
*
* @library /lib/testlibrary
*
* @build jdk.testlibrary.*
* @run clean StartStopTest
* @run build StartStopTest
* @run main/othervm/timeout=300 StartStopTest 1
* @run main/othervm/timeout=300 StartStopTest 2
* @run main/othervm/timeout=300 StartStopTest 3
* @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=5 StartStopTest 1
* @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=5 StartStopTest 2
* @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=5 StartStopTest 3
* @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=-5 StartStopTest 1
* @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=-5 StartStopTest 2
* @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=-5 StartStopTest 3
*/
import java.util.concurrent.atomic.AtomicInteger;
import javax.management.MBeanServer;
import javax.management.MBeanServerFactory;
import javax.management.Notification;
import javax.management.NotificationListener;
import javax.management.ObjectName;
import javax.management.monitor.CounterMonitor;
import javax.management.monitor.GaugeMonitor;
import javax.management.monitor.Monitor;
import javax.management.monitor.MonitorNotification;
import javax.management.monitor.StringMonitor;
import jdk.testlibrary.Utils;
public class StartStopTest {
static int maxPoolSize;
static final AtomicInteger counter = new AtomicInteger();
// MBean class
public class ObservedObject implements ObservedObjectMBean {
volatile public boolean called = false;
public Integer getInteger() {
task("Integer");
return 0;
}
public Double getDouble() {
task("Double");
return 0.0;
}
public String getString() {
task("String");
return "";
}
private void task(String prop) {
called = true;
final int c = counter.incrementAndGet();
echo("\tTASK [" + c + "] in get" + prop);
}
}
// MBean interface
public interface ObservedObjectMBean {
public Integer getInteger();
public Double getDouble();
public String getString();
}
/**
* Run test
*/
public int runTest(int monitorType) throws Exception {
int nTasks = maxPoolSize + 2;
ObjectName[] mbeanNames = new ObjectName[nTasks];
ObservedObject[] monitored = new ObservedObject[nTasks];
ObjectName[] monitorNames = new ObjectName[nTasks];
Monitor[] monitor = new Monitor[nTasks];
String[] attributes = { "Integer", "Double", "String" };
try {
echo(">>> CREATE MBeanServer");
MBeanServer server = MBeanServerFactory.newMBeanServer();
String domain = server.getDefaultDomain();
for (int i = 0; i < nTasks; i++) {
mbeanNames[i] =
new ObjectName(":type=ObservedObject,instance=" + (i + 1));
monitored[i] = new ObservedObject();
echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString());
server.registerMBean(monitored[i], mbeanNames[i]);
switch (monitorType) {
case 1:
monitorNames[i] = new ObjectName(":type=CounterMonitor," +
"instance=" + (i + 1));
monitor[i] = new CounterMonitor();
break;
case 2:
monitorNames[i] = new ObjectName(":type=GaugeMonitor," +
"instance=" + (i + 1));
monitor[i] = new GaugeMonitor();
break;
case 3:
monitorNames[i] = new ObjectName(":type=StringMonitor," +
"instance=" + (i + 1));
monitor[i] = new StringMonitor();
break;
default:
echo("Unsupported monitor type");
return 1;
}
echo(">>> CREATE Monitor = " + monitorNames[i].toString());
server.registerMBean(monitor[i], monitorNames[i]);
monitor[i].addObservedObject(mbeanNames[i]);
monitor[i].setObservedAttribute(attributes[monitorType-1]);
monitor[i].setGranularityPeriod(50);
}
for (int j = 0; j < 2; j++) {
echo(">>> Start MONITORS");
for (int i = 0; i < nTasks; i++)
monitor[i].start();
echo(">>> MONITORS started");
doSleep(500);
echo(">>> Check FLAGS true");
for (int i = 0; i < nTasks; i++)
if (!monitored[i].called) {
echo("KO: At least one attribute was not called");
return 1;
}
echo(">>> FLAGS checked true");
echo(">>> Stop MONITORS");
for (int i = 0; i < nTasks; i++)
monitor[i].stop();
echo(">>> MONITORS stopped");
doSleep(500);
echo(">>> Set FLAGS to false");
for (int i = 0; i < nTasks; i++)
monitored[i].called = false;
echo(">>> FLAGS set to false");
echo(">>> Check FLAGS remain false");
for (int i = 0; i < nTasks; i++)
if (monitored[i].called) {
echo("KO: At least one attribute " +
"continued to get called");
return 1;
}
echo(">>> FLAGS checked false");
}
} finally {
for (int i = 0; i < nTasks; i++)
if (monitor[i] != null)
monitor[i].stop();
}
return 0;
}
/*
* Print message
*/
private static void echo(String message) {
System.out.println(message);
}
/*
* Standalone entry point.
*
* Run the test and report to stdout.
*/
public static void main (String args[]) throws Exception {
Integer size = Integer.getInteger("jmx.x.monitor.maximum.pool.size");
if (size == null) {
maxPoolSize = 10;
echo(">>> MAXIMUM POOL SIZE = 10 [default value]");
} else {
maxPoolSize = size.intValue() < 1 ? 1 : size.intValue();
echo(">>> MAXIMUM POOL SIZE = " + maxPoolSize);
}
StartStopTest test = new StartStopTest();
int error = test.runTest(Integer.parseInt(args[0]));
if (error > 0) {
echo(">>> Unhappy Bye, Bye!");
throw new IllegalStateException(
"Test FAILED: Unexpected Maximum Pool Size Overflow!");
} else {
echo(">>> Happy Bye, Bye!");
}
}
private static void doSleep(long ms) throws Exception {
Thread.sleep(Utils.adjustTimeout(ms));
}
}
|
