bug6987844.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * 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
 * @key headful
 * @bug 6987844
 * @summary Incorrect width of JComboBox drop down
 * @author Alexander Potochkin
 * @run main bug6987844
 */

import javax.swing.*;
import java.awt.*;
import java.awt.event.InputEvent;

public class bug6987844 {
    static JMenu menu1;
    static JMenu menu2;

    public static void main(String... args) throws Exception {
        Robot robot = new Robot();
        robot.setAutoDelay(200);

        SwingUtilities.invokeAndWait(new Runnable() {
            public void run() {
                JFrame frame = new JFrame();
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

                JMenuBar bar = new JMenuBar();
                menu1 = new JMenu("Menu1");
                menu1.add(new JMenuItem("item"));
                bar.add(menu1);
                menu2 = new JMenu("Menu2");
                menu2.add(new JMenuItem("item"));
                menu2.add(new JMenuItem("item"));
                bar.add(menu2);

                frame.setJMenuBar(bar);
                frame.pack();

                frame.setVisible(true);
            }
        });
        robot.waitForIdle();
        Point point1 = menu1.getLocationOnScreen();
        Point point2 = menu2.getLocationOnScreen();

        robot.mouseMove(point1.x + 1, point1.y + 1);
        robot.mousePress(InputEvent.BUTTON1_MASK);
        robot.mouseRelease(InputEvent.BUTTON1_MASK);

        robot.mouseMove(point2.x + 1, point2.y + 1);
        robot.mousePress(InputEvent.BUTTON1_MASK);
        robot.mouseRelease(InputEvent.BUTTON1_MASK);
        robot.mousePress(InputEvent.BUTTON1_MASK);
        robot.mouseRelease(InputEvent.BUTTON1_MASK);

        robot.mouseMove(point1.x + 1, point1.y + 1);
        robot.waitForIdle();

        SwingUtilities.invokeAndWait(new Runnable() {
            public void run() {
                Dimension popupSize1 = menu1.getPopupMenu().getSize();
                Dimension popupSize2 = menu2.getPopupMenu().getSize();
                if (popupSize1.equals(popupSize2)) {
                    throw new RuntimeException("First popup unexpedetly changed its size");
                }
            }
        });
    }
}