WSMessageEndpoints not working in WS4EE?

[mavalla]

Hello,
I am trying to implement a webservice similar to the message endpoints example that was posted at the wiki http://www.jboss.org/wiki/Wiki.jsp?page=WSMessageEndpoints.

It doesn't seem to work under Jboss-4.0.4 and WS4EE.
It doesn't give any error, but when I construct the response using dom and I send it to the serializer the client gets an empty response.

The interfaz of the webservice is:

public Element getCacheAvailabilityPrice(CacheAvailabilityPriceRequest input) throws RemoteException;

The server side webservice sends the response like this:

 // Setup document builder
 DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
 //docBuilderFactory.setNamespaceAware(true);

 // Prepare response
 DocumentBuilder builder = docBuilderFactory.newDocumentBuilder();

 return doc.getDocumentElement();

This is what the client receives:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
 <soapenv:Body>
 <ns1:getCacheAvailabilityPriceResponse xmlns:ns1="http://ReservationSystem.hotelebusiness.com/webservices/types">
 <result/>
 </ns1:getCacheAvailabilityPriceResponse>
 </soapenv:Body>
</soapenv:Envelope>

I see that the type Element is mapped to tns:Element instead of xsd:anyType like in the example of the wiki. The rest seems similar.

The part of the WSDL for the Element object is like this:

<complexType name="getCacheAvailabilityPriceResponse">
-
 <sequence>
<element name="result" nillable="true" type="tns:Element"/>
</sequence>
</complexType>
-
 <complexType name="Element">
-
 <sequence>
<element name="nodeValue" nillable="true" type="string"/>
<element name="prefix" nillable="true" type="string"/>
<element name="textContent" nillable="true" type="string"/>
</sequence>
</complexType>

If you need more information just let me know.

Thank you very much for your time and your attention.
Manuel Valladares