Hi Alessio,
Sorry - I got confused with the annotation org.jboss.ws.api.annotation.EndpointConfig and class org.jboss.wsf.spi.metadata.config.EndpointConfig.
Yes, I am hacking deep in JBossWS with CXF on AS7 and (hopefully) on AS4. It is not easy to dig through and undestand the code, but I understand how JAXWS/RPC invocation works.
This is maybe nothing, what most developers do with JBossWS ;)
BTW: I like AS7.1 - its speed and modularity