Thanks a lot for your answers guys! :D
But the question is... Can I do it without java code? only with forms (.flt) and processdefinition (jpdl.xml)?
My idea is in the starter form put any variable seems:
<input type="hidden" name="startUser" text=$getCurrentUser />
$getCurrentUser -> is the function/expresion that I'm searching.
And in the process definiton notification task put:
<mail g="166,258,115,45" language="juel" name="Mail">
<to addresses=$startUser/>
<subject>Task finished</subject>
<text>The task that you start are finished!</text>
<transition to="end"/>
</mail>
It is Science fiction? B-) or you think that i can do anything?
Thanks for advance for your help!! ;)