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