Solution to WSE839 error for WSE3 clients needing support both MTOM and non-MTOM responses

Sometimes you need a WSE3 client to send an MTOM-encoded request, but accept either an MTOM or non-MTOM response. While the WSE3 server classes support "MTOM optional" the client does not. Here's a quick solution to the problem.Assume you have generated your WSE3 web service proxy class....