I know how to add my application to the System Tray.
However, I do not have an icon to use, so how would I do this if I cannot use the TrayIcon?
Is there a way I can use a built-in Java icon?
You can extract an icon from an executable in the following link:
http://blog.codebeach.com/2008/02/get-file-type-icon-with-java.html
Make sure to consult on the right to use the copyrighted material before you do that.