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  1. JDK
  2. JDK-7160951

[macosx] ActionListener called twice for JMenuItem using ScreenMenuBar

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    • Subcomponent:
    • Resolved In Build:
      b58
    • CPU:
      x86
    • OS:
      os_x

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        Description

        FULL PRODUCT VERSION :
        java version "1.7.0_04-ea"
        Java(TM) SE Runtime Environment (build 1.7.0_04-ea-b19)
        Java HotSpot(TM) 64-Bit Server VM (build 23.0-b20, mixed mode)

        ADDITIONAL OS VERSION INFORMATION :
        Mac OS X 10.7.3

        A DESCRIPTION OF THE PROBLEM :
        When the ScreenMenuBar is activated using System.setProperty("apple.laf.useScreenMenuBar", "true"); and the registered Accelerator Key for a JMenuItem is pressed, the ActionListener is called twice.


        REGRESSION. Last worked in version 6u31

        STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
        Activate the usage of the Screen Menu Bar
        System.setProperty("apple.laf.useScreenMenuBar", "true");

        Create a JFrame with a JMenuBar, JMenu and a JMenuItem and register a hotkey to the JMenuItem using setAccelerator and add an ActionListener.

        Start the test application and press the Hotkey.

        EXPECTED VERSUS ACTUAL BEHAVIOR :
        EXPECTED -
        Having the ActionListener called once per pressed hotkey.
        ACTUAL -
        The ActionListener its called twice.

        REPRODUCIBILITY :
        This bug can be reproduced always.

        ---------- BEGIN SOURCE ----------
        import java.awt.Toolkit;
        import java.awt.event.ActionEvent;
        import java.awt.event.ActionListener;
        import java.lang.reflect.InvocationTargetException;

        import javax.swing.JFrame;
        import javax.swing.JMenu;
        import javax.swing.JMenuBar;
        import javax.swing.JMenuItem;
        import javax.swing.KeyStroke;
        import javax.swing.SwingUtilities;

        public class Test extends JFrame {

        public Test() {
        JMenuBar menuBar = new JMenuBar();
        JMenu fileMenu = new JMenu("File");
        JMenuItem openItem = new JMenuItem("Open");
        openItem.setAccelerator(KeyStroke.getKeyStroke('O', Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()));
        openItem.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
        System.out.println("i was called");
        }
        });
        fileMenu.add(openItem);
        menuBar.add(fileMenu);
        setJMenuBar(menuBar);
        pack();
        setVisible(true);
        }

        public static void main(String[] args) throws InvocationTargetException, InterruptedException {
        System.setProperty("apple.laf.useScreenMenuBar", "true");
        SwingUtilities.invokeAndWait(new Runnable() {

        @Override
        public void run() {
        new Test();
        }
        });
        }
        }

        ---------- END SOURCE ----------

        CUSTOMER SUBMITTED WORKAROUND :
        Do not use the ScreenMenuBar.

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                Assignee:
                leonidr Leonid Romanov (Inactive)
                Reporter:
                webbuggrp Webbug Group
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