dependancy checker?

[Tim Stephenson <ti...@theStephensons.org>]

hi , 

i'm new to the whole ant thing, but hey! good job guys!

what i was wondering was if there is some ant dependancy checker that
could work with a jar tag to only include the necessary classes into the
jar, ie those that are mentioned in import statements. i know this kind
of facility is available within IDE's such as Sybase's PowerJ, but would
prefer the lighter weight of ant

rgds, tim