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
|
/*
* Copyright (c) 1998, 2013, 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.
*/
/**
*
* @bug 4023283
* @key headful
* @summary Checks that an Error which propogates up to the EventDispatch
* loop does not crash AWT.
* @author Andrei Dmitriev: area=awt.event
* @library ../../regtesthelpers
* @build Util
* @run main LoopRobustness
*/
import java.awt.*;
import java.awt.event.*;
import sun.awt.SunToolkit;
import test.java.awt.regtesthelpers.Util;
public class LoopRobustness {
final static long TIMEOUT = 5000;
final static Object LOCK = new Object();
public static int clicks = 0;
public static volatile boolean notifyOccured = false;
public static volatile boolean otherExceptionsCaught = false;
public static void main(String [] args) throws Exception {
SunToolkit.createNewAppContext();
ThreadGroup mainThreadGroup = Thread.currentThread().getThreadGroup();
long at;
//wait for a TIMEOUT giving a chance to a new Thread above to accomplish its stuff.
synchronized (LoopRobustness.LOCK) {
new Thread(new TestThreadGroup(mainThreadGroup, "TestGroup"), new Impl()).start();
at = System.currentTimeMillis();
try {
while (!notifyOccured && (System.currentTimeMillis() - at < TIMEOUT)) {
LoopRobustness.LOCK.wait(1000);
}
} catch (InterruptedException e) {
throw new RuntimeException("Test interrupted.", e);
}
}
if (!notifyOccured) {
//notify doesn't occur after a reasonable time.
throw new RuntimeException("Test FAILED: second thread hasn't notified MainThread");
}
//now wait for two clicks
at = System.currentTimeMillis();
while(System.currentTimeMillis() - at < TIMEOUT && clicks < 2) {
try {
Thread.sleep(100);
} catch(InterruptedException e) {
throw new RuntimeException("Test interrupted.", e);
}
}
if (clicks != 2) {
throw new RuntimeException("Test FAILED: robot should press button twice");
}
if (otherExceptionsCaught) {
throw new RuntimeException("Test FAILED: unexpected exceptions caught");
}
}
}
class Impl implements Runnable{
static Robot robot;
public void run() {
SunToolkit.createNewAppContext();
Button b = new Button("Press me to test the AWT-Event Queue thread");
Frame lr = new Frame("ROBUST FRAME");
lr.setBounds(100, 100, 300, 100);
b.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
LoopRobustness.clicks++;
//throwing an exception in Static Initializer
System.out.println(HostileCrasher.aStaticMethod());
}
});
lr.add(b);
lr.setVisible(true);
try {
robot = new Robot();
} catch (AWTException e) {
throw new RuntimeException("Test interrupted.", e);
}
Util.waitForIdle(robot);
synchronized (LoopRobustness.LOCK){
LoopRobustness.LOCK.notify();
LoopRobustness.notifyOccured = true;
}
int i = 0;
while (i < 2) {
robot.mouseMove(b.getLocationOnScreen().x + b.getWidth()/2,
b.getLocationOnScreen().y + b.getHeight()/2);
Util.waitForIdle(robot);
robot.mousePress(InputEvent.BUTTON1_MASK);
Util.waitForIdle(robot);
robot.mouseRelease(InputEvent.BUTTON1_MASK);
Util.waitForIdle(robot);
i++;
}
}
}
class TestThreadGroup extends ThreadGroup {
TestThreadGroup(ThreadGroup threadGroup, String name) {
super(threadGroup, name);
}
public void uncaughtException(Thread thread, Throwable e) {
System.out.println("Exception caught: " + e);
e.printStackTrace(System.out);
System.out.flush();
if ((e instanceof ExceptionInInitializerError) ||
(e instanceof NoClassDefFoundError))
{
// These two are expected
return;
}
LoopRobustness.otherExceptionsCaught = true;
}
}
class HostileCrasher {
static {
if (Math.random() >= 0.0) {
throw new RuntimeException("Die, AWT-Event Queue thread!");
}
}
public static String aStaticMethod() {
return "hello, world";
}
}
|
