<wsa:EndpointReference xmlns:wsa="http://www.w3.org/2005/08/addressing">
    <wsa:Address>http://localhost:9005/CallbackContext/CallbackPort</wsa:Address>
    <wsa:ReferenceProperties></wsa:ReferenceProperties> 
    <wsa:ReferenceParameters>
        <testParameter1>testValue1</testParameter1>
        <testParameter2>testValue2</testParameter2>
    </wsa:ReferenceParameters>
    <wsa:Metadata
      xmlns:wsdli="http://www.w3.org/2006/01/wsdl-instance"
      xmlns:wsaw="http://www.w3.org/2005/02/addressing/wsdl"
      xmlns:ns="http://apache.org/callback">
        <wsaw:ServiceName EndpointName="CallbackPort">ns:CallbackService</wsaw:ServiceName>
    </wsa:Metadata>
</wsa:EndpointReference>