bug6359669.java

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/* @test
   @bug 6359669
   @summary REGRESSION: Submenu does not work if populated in PopupMenuListener.popupMenuWillBecomeVisible
   @author Alexander Potochkin
   @library ../../../../lib/testlibrary
   @build ExtendedRobot
   @run main bug6359669
*/

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

public class bug6359669 {
    static JMenu menu;

    public static void main(String[] args) throws Exception {

        ExtendedRobot robot = new ExtendedRobot();
        robot.setAutoDelay(10);

        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                JFrame f = new JFrame();
                JMenuBar menuBar = new JMenuBar();
                menu = new JMenu("Test");
                menu.getPopupMenu().addPopupMenuListener(new PopupMenuListener() {
                    public void popupMenuCanceled(PopupMenuEvent e) {
                    }

                    public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {
                    }

                    public void popupMenuWillBecomeVisible(PopupMenuEvent e) {
                        menu.add(new JMenuItem("An item"));
                    }
                });

                menuBar.add(menu);
                f.setJMenuBar(menuBar);

                f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                f.setSize(200, 200);
                f.setVisible(true);
            }
        });
        robot.waitForIdle();
        Point p = menu.getLocationOnScreen();
        Dimension size = menu.getSize();
        p.x += size.width / 2;
        p.y += size.height / 2;
        robot.mouseMove(p.x, p.y);
        robot.mousePress(InputEvent.BUTTON1_MASK);
        robot.mouseRelease(InputEvent.BUTTON1_MASK);
        robot.waitForIdle();
        if (menu.getPopupMenu().getComponentCount() == 0) {
            throw new RuntimeException("Where is a menuItem ?");
        }
    }
}