Code wishing to create web service implementation instances for JAX-WS
requests must implement this interface and register it with the the
JAX-WS FactoryRegistry. The instance of this factory will be looked up
and utilized by the JAX-WS runtime in order to create or otherwise
obtain a web service implementation instance for any request.
This method will create, or otherwise obtain a reference to an
instance of a web service implementation class. The expectation
is that upon the completion of this method there will be a web
service implementation instance cretaed and all necessary resource
injection will have taken place.