[dev] How to run an add-on in a separate thread

[Zindy Minshava]

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.. :)