ant run-tests does too much

[Patricia Shanahan]

I'm having a problem with "ant run-tests" doing too much, and taking too 
long to get to the test in question.

Even when run immediately after an all.build, so that all jars are up to 
date, it goes through a lot of deleting and build jars.

Can anything be done about this? Is there some alternative target I can 
use that does not force rebuilding? Quick running of a single test is 
very important for debug.

Thanks,

Patricia