1 /* 2 * Copyright (c) 2019, 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 8218917 28 * @summary Tests whether sending an ALT_GRAPH key once, will result in the 29 * system reporting only ALT_GRAPH even if an ALT was sent and vice versa. 30 * @run main AltKeyBug 31 */ 32 import javax.swing.JTextField; 33 import javax.swing.JFrame; 34 import javax.swing.SwingUtilities; 35 36 import java.awt.Robot; 37 import java.awt.event.KeyListener; 38 import java.awt.event.KeyEvent; 39 40 public class AltKeyBug { 41 private static JFrame f; 42 private static boolean rightAltPressed = false; 43 private static boolean throwException = false; 44 private static String errorString; 45 public static void main(String[] args) throws Exception { 46 try { 47 Robot robot = new Robot(); 48 robot.setAutoDelay(50); 49 50 SwingUtilities.invokeAndWait(() -> { 51 JTextField comp = new JTextField(); 52 comp.addKeyListener(new KeyListener() { 53 @Override public void keyTyped(KeyEvent e) {} 54 @Override public void keyPressed(KeyEvent e) { 55 System.out.println("ModEx : " +e.getModifiersEx()); 56 System.out.println("Mod : " +e.getModifiers()); 57 System.out.println("ALT_DOWN : " + e.isAltDown()); 58 System.out.println("ALT_GR_DOWN: " + e.isAltGraphDown()); 59 System.out.println("-----------"); 60 if (rightAltPressed && !e.isAltGraphDown()) { 61 throwException = true; 62 errorString = "Right Alt press was sent but not received back."; 63 } else if (!rightAltPressed && e.isAltGraphDown()) { 64 throwException = true; 65 errorString = "Left Alt press was sent, but received Right Alt"; 66 } 67 } 68 @Override public void keyReleased(KeyEvent e) {} 69 }); 70 f = new JFrame(); 71 f.add(comp); 72 f.setSize(100,100); 73 f.setVisible(true); 74 }); 75 76 for(int i = 0; i < 20; i++) { 77 rightAltPressed = true; 78 robot.keyPress(KeyEvent.VK_ALT_GRAPH); 79 robot.keyRelease(KeyEvent.VK_ALT_GRAPH); 80 81 robot.waitForIdle(); 82 83 if (throwException) { 84 throw new RuntimeException(errorString); 85 } 86 rightAltPressed = false; 87 robot.keyPress(KeyEvent.VK_ALT); 88 robot.keyRelease(KeyEvent.VK_ALT); 89 90 robot.waitForIdle(); 91 92 if (throwException) { 93 throw new RuntimeException(errorString); 94 } 95 } 96 } finally { 97 SwingUtilities.invokeAndWait(()-> { 98 if (f != null) 99 f.dispose(); 100 }); 101 } 102 103 System.out.println("Test passed."); 104 } 105 }