/*
* Copyright ( c ) 2011 , 2014 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
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*/
/*
* @ test
* @ key headful
* @ bug 6578666
* @ summary REGRESSION : Exception occurs when updateUI for JTree is triggered by KeyEvent
* @ run main bug6578666
* @ author Alexander Potochkin
*/
import javax.swing.*;
import java.awt.*;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
public class bug6578666 {
private static JTree tree;
private static void createGui() {
final JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
tree = new JTree();
frame.add(tree);
tree.addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent e) {
tree.updateUI();
}
});
frame.setSize(200 , 200 );
frame.setLocationRelativeTo(null );
frame.setVisible(true );
}
public static void main(String[] args) throws Exception {
Robot robot = new Robot();
robot.setAutoDelay(10 );
SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
bug6578666.createGui();
}
});
robot.waitForIdle();
tree.requestFocus();
robot.waitForIdle();
robot.keyPress(KeyEvent.VK_SPACE);
robot.keyRelease(KeyEvent.VK_SPACE);
robot.waitForIdle();
robot.keyPress(KeyEvent.VK_SPACE);
robot.keyRelease(KeyEvent.VK_SPACE);
}
}
Messung V0.5 in Prozent C=93 H=96 G=94
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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