Name: sv35042 Date: 10/18/2002


FULL PRODUCT VERSION :
java version "1.4.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-b92)
Java HotSpot(TM) Client VM (build 1.4.0-b92, mixed mode)

FULL OPERATING SYSTEM VERSION :
Microsoft Windows 2000 [Version 5.00.2195]

A DESCRIPTION OF THE PROBLEM :
Menu item accelerators have a hard time coping with the new
Swing Data Transfer introduced in JDK1.4. Namely, they are
ignored even if the (default) clipboard support is disabled
from a component, i.e. setTransferHandler(null). In that
case, it only seems reasonable that the key event would be
passed on so that some other component (in this case, the
menu item) would process it. Hardly a critical issue but as
it worked OK with JDK1.3.1...

REGRESSION. Last worked in version 1.3.1

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the attached demo.

EXPECTED VERSUS ACTUAL BEHAVIOR :
Ctrl-C does nothing with the tree (as the transfer handler
has been nullified) so Èì kinda expected the action listener
of the menu item would've been triggered. It didn't.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.awt.event.*;
import javax.swing.*;

public class TreeTest
    extends JFrame
{
    public static void main( String[] args )
    {
        TreeTest t = new TreeTest();
        t.buildUi();
        t.show();
    }
    public void buildUi()
    {
        JMenuBar menuBar = new JMenuBar();
        JMenu menu = new JMenu();
        JMenuItem copyItem = new JMenuItem( "Copy" );
        copyItem.setAccelerator( KeyStroke.getKeyStroke( KeyEvent.VK_C,
KeyEvent.CTRL_MASK ) );
        menu.setText( "File" );
        copyItem.setText( "Copy" );
        menuBar.add( menu );
        menu.add( copyItem );
        setJMenuBar( menuBar );
        copyItem.addActionListener( new ActionListener()
        {
            public void actionPerformed( ActionEvent evt )
            {
                System.out.println( "gee, why am i not called via ctrl-c?" );
            }
        });
        JTree tree = new JTree();
        tree.setTransferHandler( null ); // go away, evil default handling
        // unregisterKeyboardAction() does not work either, btw...
        getContentPane().add( tree );
        setSize( 640, 480 );
    }
    protected void processWindowEvent( WindowEvent evt )
    {
        if ( evt.getID() == WindowEvent.WINDOW_CLOSING )
        {
            System.exit( 0 );
        }
    }
}
---------- END SOURCE ----------

CUSTOMER WORKAROUND :
  Hook the action listener of the menu item directly to the
tree via registerKeyboardAction. Hardly an elegant approach.

Release Regression From : 1.4
The above release value was the last known release where this
bug was known to work. Since then there has been a regression.

(Review ID: 158994)
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