How to run an add-on in a separate thread

Zindy Minshava <[email protected]>
Newsgroups gmane.comp.openoffice.devel.general
Message-ID <[email protected]> 
I am creating an add-on for OpenOffice Writer in java. In my application I have the need to refresh the text displayed in a GUI on a time basis manner. 
 
That is the user should be able to work on Writer application while the add on displays  different texts on a separate GUI time to time. 
 
Do I need to use separate thread for my add- on to achieve this? Or how can I achieve these idle time intervals without effecting the Writer application?
 
Can anyone help me with this.. :)
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