How to enable MTOM ?

[bootsector]

I have a webservice endpoint which I annotated with MTOM and I have this web method:

public @XmlMimeType("application/octet-stream") DataHandler binaryTest();

and I have these lines the wsdl:

<xs:complexType name="binaryTestResponse">

     <xs:sequence>

     <xs:element xmlns:ns1="http://www.w3.org/2005/05/xmlmime" minOccurs="0" name="return"ns1:expectedContentTypes="application/octet-stream" type="xs:base64Binary"/>

</xs:sequence>

</xs:complexType>

The request is sent with these headers:

Content-Type: multipart/related; type="application/xop+xml"; start="<[e-mail]>"; start-info="text/xml"; boundary="----=_Part_452_1354325.1354355599999"

MIME-Version: 1.0

But I get this response:

<env:Envelope xmlns:env='http://schemas.xmlsoap.org/soap/envelope/'><env:Header></env:Header><env:Body><ns2:binaryTestResponse xmlns:ns2="http://blablabla/"><return> AAAAAAAAAAAAAA ....

How to force jboss to respect MTOM?

Thanks