"No code at that line in class" while debugging Tomcat

Hi all,

I'm using JSwat 2.9 with Apache Tomcat 4.1.12. I'm trying to debug 
classes running remotely on the server. If I make a change to a source 
file and redeploy it into Tomcat, Tomcat's automatic reloading detects 
the new .class file and uses it.

But, if I reload the new source file into JSwat and attempt to set 
breakpoints anywhere in the file, I get a popup with "No code at that 
line in class". This happens even if I detach from the remote VM, or 
even if I completely exit JSwat and restart it. The only thing that 
seems to get the new code to be debuggable is shutting down and 
restarting both Tomcat and JSwat.

Am I doing something wrong, or is this a bug?

Thanks,
-Paul