But in regards to Dynamically installing a java class
as new service, there is a very simple tool
(AdminClient) bundled with AXIS to do this for you. It
will be easy, I guess, to write a quick-and-dirty
plugin for it. Also can be done by an ANT target.
As for me here, it's all static. I'm not using any
hot-deployment of web-services (no AdminClient for
remote deployment). Instead I generate whatever
web-services need and bundle them in the war file and
deploy the result on application server.

Btw, Take a look at AXIS documentation for more info.