Saga:
if you want sperate your client application with stub, there a couple of things you need to do.
First, in server side, make sure where is stub location. in a jar or in class pacakge or just in a directory, which is not related any packages.
Second, every time you start the server,
you should refer this location to the rmi.server by following syntex commands:
java -Djava.rmi.server.codebase=file:/c:\your firl location
-Djava.rmi.server.hostname=host
your_application_name
check for this to see if you can get it or not.
David