1 /* 2 * Copyright (c) 2017, 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 8176490 27 * @summary Tests that there is no hang or deadlock when the visibility 28 * of parent and child windows is changed. 29 * @library ../../regtesthelpers 30 * @build Util 31 * @run main/timeout=20 WindowDeadlockTest 32 */ 33 34 import java.awt.Dialog; 35 import java.awt.Frame; 36 import java.awt.Robot; 37 38 import test.java.awt.regtesthelpers.Util; 39 40 public class WindowDeadlockTest { 41 public static void main(String[] args) throws Exception { 42 Robot robot = Util.createRobot(); 43 44 Frame main = new Frame("Main"); 45 main.setBounds(0, 0, 200, 100); 46 main.setVisible(true); 47 48 Dialog first = new Dialog(main, "First"); 49 first.setBounds(250, 0, 200, 100); 50 first.setVisible(true); 51 52 Dialog second = new Dialog(first, "Second"); 53 second.setBounds(0, 150, 200, 100); 54 second.setVisible(true); 55 56 Util.waitForIdle(robot); 57 robot.delay(2000); 58 59 Dialog third = new Dialog(first, "Third", false); 60 third.setBounds(250, 150, 200, 100); 61 third.setVisible(true); 62 first.setVisible(false); // the hang takes place here 63 64 Util.waitForIdle(robot); 65 robot.delay(2000); 66 67 third.dispose(); 68 second.dispose(); 69 first.dispose(); 70 main.dispose(); 71 } 72 }