1 /*
2 * Copyright (c) 2011, 2016, 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 * @key headful
27 * @bug 7108598 8172009
28 * @summary Container.paint/KeyboardFocusManager.clearMostRecentFocusOwner methods deadlock
29 * @library ../../regtesthelpers
30 * @author Oleg Pekhovskiy
31 * @build Util
32 * @run main PaintSetEnabledDeadlock
33 */
34
35 import java.awt.Button;
36 import java.awt.Color;
37 import java.awt.Dimension;
38 import java.awt.Frame;
39 import java.awt.Graphics;
40 import java.awt.GridLayout;
41 import java.awt.Image;
42 import java.awt.Panel;
43 import java.awt.Rectangle;
44 import java.awt.Robot;
45 import java.awt.event.MouseAdapter;
46 import java.awt.event.MouseEvent;
47 import java.awt.event.WindowAdapter;
48 import java.awt.event.WindowEvent;
49 import test.java.awt.regtesthelpers.Util;
50
51 public class PaintSetEnabledDeadlock extends Frame {
52
53 final TestPanel panel;
54 final Button button;
55
56 public static void main(String[] args) {
57 PaintSetEnabledDeadlock frame = new PaintSetEnabledDeadlock();
58 frame.setSize(200, 200);
59 frame.setVisible(true);
60
61 Robot robot = Util.createRobot();
62 robot.setAutoDelay(100);
63 robot.setAutoWaitForIdle(true);
64
65 for (int i = 0; i < 20; ++i) {
66 Util.clickOnComp(frame.panel, robot);
67 Util.clickOnComp(frame.button, robot);
68 }
69
70 boolean ret = frame.panel.stop();
71 frame.dispose();
72
73 if (!ret) {
74 throw new RuntimeException("Test failed!");
75 }
76 System.out.println("Test passed.");
77 }
78
79 public PaintSetEnabledDeadlock() {
80 super("7108598 test");
81 setLayout(new GridLayout(1, 2));
82 addWindowListener(new WindowAdapter() {
83
84 @Override
85 public void windowClosing(WindowEvent e) {
86 panel.stop();
87 System.exit(0);
88 }
89 });
90 panel = new TestPanel();
91 add(panel);
92 button = new Button("Enable");
93 button.addMouseListener(new MouseAdapter() {
94
95 @Override
96 public void mousePressed(MouseEvent e) {
97 panel.setEnabled(true);
98 panel.sync();
99 panel.repaint();
100 }
101 });
102 add(button);
103 }
104 }
105
106 class TestPanel extends Panel implements Runnable {
107
108 Image image = null;
109 Thread thread = null;
110 volatile boolean active = true;
111 final Object sync = new Object();
112 Panel panel = this;
113
114 public TestPanel() {
115 addMouseListener(new MouseAdapter() {
116
117 @Override
118 public void mouseReleased(MouseEvent e) {
119 synchronized (panel) {
120 sync();
121 panel.setEnabled(false);
122 }
123 panel.repaint();
124 }
125 });
126 thread = new Thread(this);
127 thread.start();
128 }
129
130 @Override
131 public void paint(Graphics paramGraphics) {
132 synchronized (getTreeLock()) {
133 Rectangle rect = getBounds();
134 if (image == null) {
135 image = createImage(rect.width, rect.height);
136 }
137
138 if (image != null) {
139 paramGraphics.drawImage(image, 0, 0, this);
140 }
141 }
142 }
143
144 @Override
145 public void run() {
146 while (active) {
147 try {
148 synchronized (sync) {
149 sync.wait();
150 }
151 } catch (InterruptedException ex) {
152 }
153 if (active) {
154 draw();
155 }
156 }
157 }
158
159 public boolean stop() {
160 active = false;
161 try {
162 sync();
163 thread.join(1000);
164 if (thread.isAlive()) {
165 thread.interrupt();
166 return false;
167 }
168 } catch (InterruptedException ex) {
169 return false;
170 }
171 return true;
172 }
173
174 public void draw() {
175 synchronized (getTreeLock()) {
176 if (image != null) {
177 Graphics localGraphics = image.getGraphics();
178 Dimension size = getSize();
179 localGraphics.setColor(isEnabled() ? Color.green : Color.red);
180 localGraphics.fillRect(0, 0, size.width, size.height);
181 super.paint(localGraphics);
182 localGraphics.dispose();
183 getTreeLock().notifyAll();
184 }
185 }
186 }
187
188 public void sync() {
189 synchronized (sync) {
190 sync.notify();
191 }
192 }
193 }