FULL PRODUCT VERSION :
java version "1.6.0-beta2"
Java(TM) SE Runtime Environment (build 1.6.0-beta2-b86)
Java HotSpot(TM) Client VM (build 1.6.0-beta2-b86, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [Version 5.1.2600]

EXTRA RELEVANT SYSTEM CONFIGURATION :
JDK 6 beta2

A DESCRIPTION OF THE PROBLEM :
The ampersand character is not displayed in the TrayIcon tooltip.
The same String is displayed well with TrayIcon.displayMessage() which accepts Strings just like TrayIcon.setTooltip() or TrayIcon's constructor.

Additional information: seeing the same bug on 2 different computers with
java6 beta2, same windows XP. Same effect when compiling and running
inside Eclipse, or the command line (javac, java)

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. compile the class below
2. save an image for the systray icon as c:\trayicon.png
3. run the class (java ampersand_error)
4. see the systray bubble showing: -&- (it's good)
5. see the tooltip on the systray icon, the & char is not displayed but
the others are. You actually see only: -- (it's wrong, & is
missing)

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
tooltip output: -&-
ACTUAL -
tooltip output: --

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.awt.AWTException;
import java.awt.Image;
import java.awt.PopupMenu;
import java.awt.SystemTray;
import java.awt.Toolkit;
import java.awt.TrayIcon;
import java.awt.TrayIcon.MessageType;

public class ampersand_error {
 
        static SystemTray tray;
        static TrayIcon trayicon;
 
        public static void main(String[] args) {

                tray = SystemTray.getSystemTray();
                Image image =
Toolkit.getDefaultToolkit().getImage("c:/trayicon.png");
                PopupMenu popupmenu = new PopupMenu();
                //bug seems to be here when setting the tooltip:
                trayicon = new TrayIcon(image, "-&-", popupmenu);

                try {
                        tray.add(trayicon);
                } catch (AWTException e) {
                        e.printStackTrace();
                }
                // this works well:
                trayicon.displayMessage("-&-", "-&-", MessageType.INFO);
         }
         public void finalize ()
        {
                tray.remove(trayicon);
        }
}
---------- END SOURCE ----------