Hi Richard,
I tried to create my own implementation of the InvocationHandlerFactory - but unfortunately it is impossible to use a custom implementation in AS7 :( , because there is just one InvocationHandlerFactory (org.jboss.as.webservices.invocation.InvocationHandlerFactoryImpl from jboss-as-webserver-integration). AS7 webservice integreation uses its own factory - only its own factory.
That's the reason why I made such a complicated approach.