I don't know if JFluid does this yet or not (I've
yet to use it) but please add this support if you
haven't already:

Often I'm trying to figure out why my application
won't shut down once the last GUI window is
closed. Often this is the result of some thread
being spawn but not stopped or if I forget to call
dispose() on some component. Often I can locate
which Thread is responsible, but I have no idea
who spawn it (hence whose component should be
disposed).

Could you please add functionality that allows one
to track thread creation back to a stack-trace
(i.e. who created it, give a stack-trace for that
point of execution) and based upon that we should
be able to track who created *that* component and
so on... Eventually this will lead back to the
application code and we will be able to figure out
which component needed to be shut down but we did
not do it.