I'm also using SOAPUI for testing purposes, very nice tool for that :-)
The problem is that one of our customers would like to integrate our WebService, and (unfortunetaly) they are using .net...
I found out that adding the following to my pom is supposed to solve the problem:
Unfortunetaly the other guys havn't had the time to rerun the .net WebService client. So I can't really tell yet whether it works now or not....