Debugging slow in windows under 1.6

I'm seeing drastic delays (4 or 5 minutes) to start up my application under debug. I've tried under 6.0.5 and 7.0M1b and I see the same thing. It might be related to some jars in my project definition as I can debug other projects fine. But this project is wicket/spring/hibernate based (read: a bajillion dependencies) and start up time and response time are beyond unbearable. Has anyone seen anything like this?