Fixing socket listener port

When I start a debugee process in server mode, using the command line
options:
-Xrunjdwp:transport=dt_socket,server=y,suspend=n

It starts each time listening in a different port. I would like to skip the
tedious
"find port number on server output, copy, switch to JSwat, attach, paste
port number" cycle.
If I could fix the port, I could code an alias in JSwat to attach or even
direct JSwat to 
automatically attach to the server as soon as it starts.

So the question is, is there any way to fix the port number when starting an
application in 
debug-server mode, to remove the manual step? 

Regards,
	Nascif