Cannot get details in custon fault

[bossy]

I need to throw a custom exception from a web service. The problem is I don't get the details.
I'm running my WS under jboss 4.0.4.
My wsdl contains the following :

<xsd:element name="MyOperationFault">
 <xsd:complexType>
 <xsd:sequence>
 <xsd:element name="MyOperationFaultCode" type="xsd:string" />
 <xsd:element name="MyOperationFaultSeverity" type="xsd:string" />
 <xsd:element name="MyOperationFaultMessage" type="xsd:string" />
 <xsd:element name="MyOperationFaultComment" type="xsd:string" />
 </xsd:sequence>
 </xsd:complexType>
 </xsd:element>
</xsd:schema>
</wsdl:types>

<wsdl:message name="MyOperationRequest">
<wsdl:part element="tns:MyOperationRequest" name="parameters"/>
</wsdl:message>
<wsdl:message name="MyOperationResponse">
<wsdl:part element="tns:MyOperationResponse" name="parameters"/>
</wsdl:message>




<wsdl:message name="MyOperationFault">
 <wsdl:part name="parameters" element="tns:MyOperationFault"></wsdl:part>
</wsdl:message>
<wsdl:portType name="Test">
 <wsdl:operation name="MyOperation">
 <wsdl:input message="tns:MyOperationRequest"/>
 <wsdl:output message="tns:MyOperationResponse"/>
 <wsdl:fault name="MyOperationException" message="tns:MyOperationFault"></wsdl:fault>
 </wsdl:operation>

</wsdl:portType>

<wsdl:binding name="TestSOAP" type="tns:Test">
<soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>


<wsdl:operation name="MyOperation">
 <soap:operation soapAction="http://www.mycom.com/Test/MyOperation"/>
 <wsdl:input><soap:body use="literal"/></wsdl:input>
 <wsdl:output><soap:body use="literal"/></wsdl:output>
 <wsdl:fault name="MyOperationException" >
 <soap:fault name="MyOperationException"/>
 </wsdl:fault>
</wsdl:operation>

</wsdl:binding>

My mapping file contains this:

<java-xml-type-mapping>
 <java-type>com.mycom.myapp.ws.types.MyOperationFault</java-type>
 <root-type-qname xmlns:typeNS="http://www.mycom.com/Test/">typeNS:MyOperationFault</root-type-qname>
 <qname-scope>complexType</qname-scope>
 <variable-mapping>
 <java-variable-name>MyOperationFaultCode</java-variable-name>
 <xml-element-name>MyOperationFaultCode</xml-element-name>
 </variable-mapping>
 <variable-mapping>
 <java-variable-name>MyOperationFaultSeverity</java-variable-name>
 <xml-element-name>MyOperationFaultSeverity</xml-element-name>
 </variable-mapping>
 <variable-mapping>
 <java-variable-name>MyOperationFaultMessage</java-variable-name>
 <xml-element-name>MyOperationFaultMessage</xml-element-name>
 </variable-mapping>
 <variable-mapping>
 <java-variable-name>MyOperationFaultComment</java-variable-name>
 <xml-element-name>MyOperationFaultComment</xml-element-name>
 </variable-mapping>
 </java-xml-type-mapping>


<exception-mapping>
 <exception-type>com.mycom.myapp.ws.types.MyOperationFault</exception-type>
 <wsdl-message xmlns:exMsgNS="http://www.mycom.com/Test/">exMsgNS:MyOperationFault</wsdl-message>
 <constructor-parameter-order>
 <element-name>MyOperationFaultCode</element-name>
 <element-name>MyOperationFaultSeverity</element-name>
 <element-name>MyOperationFaultMessage</element-name>
 <element-name>MyOperationFaultComment</element-name>
 </constructor-parameter-order>
 </exception-mapping>

 <service-interface-mapping>
 <service-interface>com.mycom.myapp.ws.serviceTestService</service-interface>
 <wsdl-service-name xmlns:serviceNS="http://www.mycom.com/Test/">serviceNS:TestService</wsdl-service-name>
 <port-mapping>
 <port-name>TestSOAP</port-name>
 <java-port-name>TestSOAP</java-port-name>
 </port-mapping>
 </service-interface-mapping>


 <service-endpoint-interface-mapping>

 <service-endpoint-interface>com.mycom.myapp.ws.Test</service-endpoint-interface>
 <wsdl-port-type xmlns:portTypeNS="http://www.mycom.com/Test/">portTypeNS:Test</wsdl-port-type>
 <wsdl-binding xmlns:bindingNS="http://www.mycom.com/Test/">bindingNS:TestSOAP</wsdl-binding>




 <service-endpoint-method-mapping>
 <java-method-name>MyOperation</java-method-name>
 <wsdl-operation>MyOperation</wsdl-operation>
 <wrapped-element/>

 <method-param-parts-mapping>
 <param-position>0</param-position>
 <param-type>java.lang.String</param-type>
 <wsdl-message-mapping>
 <wsdl-message xmlns:wsdlMsgNS="http://www.mycom.com/Test/">wsdlMsgNS:MyOperationRequest</wsdl-message>
 <wsdl-message-part-name>par1</wsdl-message-part-name>
 <parameter-mode>IN</parameter-mode>
 </wsdl-message-mapping>
 </method-param-parts-mapping>

 <method-param-parts-mapping>
 <param-position>1</param-position>
 <param-type>java.lang.String</param-type>
 <wsdl-message-mapping>
 <wsdl-message xmlns:wsdlMsgNS="http://www.mycom.com/Test/">wsdlMsgNS:MyOperationRequest</wsdl-message>
 <wsdl-message-part-name>par2</wsdl-message-part-name>
 <parameter-mode>IN</parameter-mode>
 </wsdl-message-mapping>
 </method-param-parts-mapping>

 <wsdl-return-value-mapping>
 <method-return-value>com.mycom.myapp.ws.api.MyOperationResponse</method-return-value>
 <wsdl-message xmlns:wsdlMsgNS="http://www.mycom.com/Test/">wsdlMsgNS:MyOperationResponse</wsdl-message>
 <wsdl-message-part-name>parameters</wsdl-message-part-name>
 </wsdl-return-value-mapping>

 </service-endpoint-method-mapping>
 </service-endpoint-interface-mapping>

and this is how my methods are declared:

public MyOperationResponse MyOperation(MyOperationRequest request) throws RemoteException,MyOperationFault;

MyOperationFault extends extends Exception implements Serializable


The problem is that when I throw MyOperationFault I get this:

<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
 <env:Header/>
 <env:Body>
 <env:Fault>
 <faultcode>env:Client</faultcode>
 <faultstring>com.mycom.myapp.ws.types.MyOperationFault</faultstring>
 </env:Fault>
 </env:Body>
</env:Envelop>

I would expect to see also an element "detail" with the rest of the MyOperationFault properties.Can somebody point me the right direction what am I doing wrong?
Thanks.