message is displayed on the top-left corner of the screen when there is no system tray, applet mode

I am adding a tray icon to the notification area from an applet. Once the icon is added, I am manually removing the notification area from the taskbar. Now when I call trayIcon.displayMessage(), the message is getting displayed on the top-left corner of the screen. This is incorrect. When tray icon is not available, displayMessage() call must be ignored.

This is reproducible only on the applet mode and works fine with normal application. Reproducible on SolSparc10-JDS with Mustang-b73. Not reproducible on Win32.

I have attached a sample test. Make sure you have a notification area on the taskbar. Execute the sample test on Mozilla with latest mustang build. A frame would popup. Remove the motification area manually after the frame is shown. Click on 'Display Message' button. If the message is shown on the top-left corner of the screen, bug is reproduced.