On UNIX running GNOME only

create a JNLP applications, and create shortcuts in a existing folder.

e.g

<shortcut>
   <menu submenu="Internet"/>
</shortcut>

which the "Internet" folder contains Netscape and Mozilla currently.

After the jnlp shortcut is created, it will only show the shortcut of the jnlp application; shortcuts exists before won't be shown.

If you uninstall the jnlp application, the original shortcuts will be restored.