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 boolean ret = frame.panel.stop(); 58 frame.dispose(); 59 60 if(!ret) 61 throw new RuntimeException("Test failed!"); 62 System.out.println("Test passed."); 63 } 64 65 public PaintSetEnabledDeadlock() { 66 super("7108598 test"); 67 setLayout(new GridLayout(1, 2)); 68 addWindowListener(new WindowAdapter() { 69 70 @Override 71 public void windowClosing(WindowEvent e) { 72 panel.stop(); 73 System.exit(0); 74 } 75 }); 76 panel = new TestPanel(); 77 add(panel); 78 button = new Button("Enable"); 79 button.addMouseListener(new MouseAdapter() { 80 81 @Override 82 public void mousePressed(MouseEvent e) { 83 panel.setEnabled(true); 84 panel.sync(); 85 panel.repaint(); 86 } 87 }); 88 add(button); 89 } 90 } 91 92 class TestPanel extends Panel implements Runnable { 93 94 Image image = null; 95 Thread thread = null; 96 volatile boolean active = true; 97 final Object sync = new Object(); 98 Panel panel = this; 99 100 public TestPanel() { 101 addMouseListener(new MouseAdapter() { 102 103 @Override 104 public void mouseReleased(MouseEvent e) { 105 synchronized (panel) { 106 sync(); 107 panel.setEnabled(false); 108 } 109 panel.repaint(); 110 } 111 }); 112 thread = new Thread(this); 113 thread.start(); 114 } 115 116 @Override 117 public void paint(Graphics paramGraphics) { 118 synchronized (getTreeLock()) { 119 Rectangle rect = getBounds(); 120 if (image == null) { 121 image = createImage(rect.width, rect.height); 122 } 123 124 if (image != null) { 125 paramGraphics.drawImage(image, 0, 0, this); 126 } 127 } 128 } 129 130 @Override 131 public void run() { 132 while (active) { 133 try { 134 synchronized (sync) { 135 sync.wait(); 136 } 137 } catch (InterruptedException ex) { 138 } 139 if (active) { 140 draw(); 141 } 142 } 143 } 144 145 public boolean stop() { 146 active = false; 147 try { 148 sync(); 149 thread.join(1000); 150 if (thread.isAlive()) { 151 thread.interrupt(); 152 return false; 153 } 154 } catch (InterruptedException ex) { 155 return false; 156 } 157 return true; 158 } 159 160 public void draw() { 161 synchronized (getTreeLock()) { 162 if (image != null) { 163 Graphics localGraphics = image.getGraphics(); 164 Dimension size = getSize(); 165 localGraphics.setColor(isEnabled() ? Color.green : Color.red); 166 localGraphics.fillRect(0, 0, size.width, size.height); 167 super.paint(localGraphics); 168 localGraphics.dispose(); 169 getTreeLock().notifyAll(); 170 } 171 } 172 } 173 174 public void sync() { 175 synchronized (sync) { 176 sync.notify(); 177 } 178 } 179 }