1 /* 2 * Copyright (c) 2013, 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 import java.awt.AWTException; 25 import java.awt.Color; 26 import java.awt.Frame; 27 import java.awt.Graphics; 28 import java.awt.Point; 29 import java.awt.Robot; 30 import java.awt.Window; 31 32 /** 33 * @test 34 * @bug 8001472 35 * @summary Background of the window should not depend from the paint()/update() 36 * @author Sergey Bylokhov 37 * @library ../../../../lib/testlibrary 38 * @build ExtendedRobot 39 * @run main BackgroundIsNotUpdated 40 */ 41 public final class BackgroundIsNotUpdated extends Window { 42 43 public BackgroundIsNotUpdated(final Frame owner) { 44 super(owner); 45 } 46 47 @Override 48 public void paint(final Graphics ignored) { 49 // Intentionally left blank 50 } 51 52 @Override 53 public void update(final Graphics ignored) { 54 // Intentionally left blank 55 } 56 57 public static void main(final String[] args) throws AWTException { 58 final Window window = new BackgroundIsNotUpdated(null); 59 window.setSize(300, 300); 60 window.setLocationRelativeTo(null); 61 window.setVisible(true); 62 window.requestFocus(); 63 final ExtendedRobot robot = new ExtendedRobot(); 64 robot.setAutoDelay(200); 65 robot.waitForIdle(1000); 66 window.setBackground(Color.GREEN); 67 robot.waitForIdle(1000); 68 Point point = window.getLocationOnScreen(); 69 Color color = robot.getPixelColor(point.x + window.getWidth() / 2, 70 point.y + window.getHeight() / 2); 71 window.dispose(); 72 if (!color.equals(Color.GREEN)) { 73 throw new RuntimeException( 74 "Expected: " + Color.GREEN + " , Actual: " + color); 75 } 76 } 77 }