Java Web Service "clears" sop:Include/ from SOAP Body?

Question

I have a Java Web Service which processes SOAP Messages with MIME attachments. The references to the attachments are using XOP (XML-binary Optimized Packaging) specification.
The XML Schema for the SOAP Body content imports the namespace "http://www.w3.org/2004/08/xop/include", but it is not its main target namespace. When I run the service and view the HTTP packet through HTTP Analyzer, the SOAP Envelope looks like this:
<env:Envelope xmlns:env="http://www.w3.org/2003/05/soap-envelope"
              xmlns:xsd="http://www.w3.org/2001/XMLSchema"
              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xmlns:ns0="http://www.ACORD.org/Standards/AcordMsgSvc/1"
              xmlns:xop="http://www.w3.org/2004/08/xop/include"
              xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
    <env:Header>
    </env:Header>
    <env:Body>
        <ac:CallRq xmlns:ac="http://www.ACORD.org/Standards/AcordMsgSvc/1">
            <ac:WorkFolder>
                <ac:MsgFile>
                    <ac:FileId>
<sop:Include href="cid:93609df7-d718-4801-bab9-57e3fd9cc5b5"
xmlns:sop="http://www.w3.org/2004/08/xop/include"
xsi:schemaLocation="http://www.w3.org/2004/08/xop/include http://www.w3.org/2004/08/xop/include"/>
</ac:FileId>
                    <ac:FileFormatCd>text/xml</ac:FileFormatCd>
                </ac:MsgFile>
            </ac:WorkFolder>
        </ac:CallRq>
    </env:Body>
</env:Envelope>But when I access the java.xml.soap.SOAPMessage object in handleRequest(MessageContext) method of the Web Service's handler I get the following:
<env:Envelope xmlns:env="http://www.w3.org/2003/05/soap-envelope"
              xmlns:xsd="http://www.w3.org/2001/XMLSchema"
              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xmlns:ns0="http://www.ACORD.org/Standards/AcordMsgSvc/1"
              xmlns:xop="http://www.w3.org/2004/08/xop/include"
              xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
    <env:Header>
    </env:Header>
    <env:Body>
        <ac:CallRq xmlns:ac="http://www.ACORD.org/Standards/AcordMsgSvc/1">
            <ac:WorkFolder>
                <ac:MsgFile>
                    <ac:FileId>
</ac:FileId>
                    <ac:FileFormatCd>text/xml</ac:FileFormatCd>
                </ac:MsgFile>
            </ac:WorkFolder>
        </ac:CallRq>
    </env:Body>
</env:Envelope>As you can see, the <sop:Include/> element has disappeared.
Does anyone has an idea why this happens?
Thank you!
Simeon

Answer 1

Neither the simple "setter" methods work.. :(
The php client side:
$string="aladar";
$client->setSample($string);
$return = $client->getSample();
The server side:
public String sample;
public String getSample() {
return sample;
public void setSample(String a_sample) {
sample = a_sample;
Any ideas?