I am having the exact same issue. Were you able to resolve the issue? Any pointers would be greatly appreciated.
Did anyone come up with a solution to this? I am experiencing the same thing.
I had the same problem, it took me very long time to figure it out: the error is caused by jar-hell. To solve this issue delete jbossws-jboss42.jar file, so that JBoss uses only the new, jbossws-jboss423.jar instead.