bug6578666.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
 * 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).
 *
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 * 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
 * @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);

    }
}