I created the wsdl and build the web services. I have expectedContentTypes values in the wsdl to support MTOM. My Websphere generated client runs just fine, and does send the MTOM data in binary.
Here's the problem. When a client attempts to use wsimport to generate their client (hitting the http site), Websphere strips off the expectedContentTypes values and the client generates a non-MTOM client.
Here's the wsdl:
Here is what Webshphere returns for the wsdl:
And here is the referenced xsd (which Websphere stripped out of my wsdl all by themselves):
Note that all references to xmime:expectedContentTypes have been removed.