1 /*
   2  * Copyright (c) 2011, 2014, 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  * @test
  25  * @bug 6578666
  26  * @summary REGRESSION: Exception occurs when updateUI for JTree is triggered by KeyEvent
  27  * @run main bug6578666
  28  * @author Alexander Potochkin
  29  */
  30 
  31 import javax.swing.*;
  32 import java.awt.*;
  33 import java.awt.event.KeyAdapter;
  34 import java.awt.event.KeyEvent;
  35 
  36 public class bug6578666 {
  37 
  38     private static JTree tree;
  39 
  40     private static void createGui() {
  41         final JFrame frame = new JFrame();
  42         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  43 
  44         tree = new JTree();
  45         frame.add(tree);
  46 
  47         tree.addKeyListener(new KeyAdapter() {
  48             public void keyPressed(KeyEvent e) {
  49                 tree.updateUI();
  50             }
  51         });
  52 
  53         frame.setSize(200, 200);
  54         frame.setLocationRelativeTo(null);
  55         frame.setVisible(true);
  56     }
  57 
  58     public static void main(String[] args) throws Exception {
  59         Robot robot = new Robot();
  60         robot.setAutoDelay(10);
  61 
  62         SwingUtilities.invokeAndWait(new Runnable() {
  63             public void run() {
  64                 bug6578666.createGui();
  65             }
  66         });
  67 
  68         robot.waitForIdle();
  69 
  70         tree.requestFocus();
  71         robot.waitForIdle();
  72 
  73         robot.keyPress(KeyEvent.VK_SPACE);
  74         robot.keyRelease(KeyEvent.VK_SPACE);
  75         robot.waitForIdle();
  76         robot.keyPress(KeyEvent.VK_SPACE);
  77         robot.keyRelease(KeyEvent.VK_SPACE);
  78 
  79     }
  80 }