Hi,
Just posting this because we found another snag using web services with JBoss.
In a nutshell your web.xml gets modified at runtime and a copy is made to web.xml.org. First time you run everything is fine. However, on second run your web services will not work.
I've posted this problem with a workaround to the web service forum. Here is the link for those interested:
http://www.jboss.com/index.html?module=bb&op=viewtopic&t=113778
Thanks,
PVM