The reverse web service used in camel-soap-proxy and deployed as an independent WS endpoint does not specify the action parameter on its @WebMethod annotations. This causes dispatch to fail on EAP 6.1 (but not on JAX-WS in Java SE). The fix is simple - just add the action attribute to the two operations in ReverseService:

@WebMethod(action="urn:switchyard-quickstart:camel-soap-proxy:1.0")
@WebResult(name="text")
public String reverse(@WebParam(name="text") String text) {
    return new StringBuilder(text).reverse().toString();
}

Note that the test in release would have caught this but it doesn't actually test the ProxyService endpoint. Fix that as part of this issue as well.