Error messages for XTS registration is unprecise and hardly tracable

Francesco Marchioni: In the test testAlreadyRegisteredProtocolIdentifierException
Francesco Marchioni: <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
   <soap:Header>
      <Action xmlns="http://www.w3.org/2005/08/addressing">http://docs.oasis-open.org/ws-tx/wscoor/2006/06/Register<...>
      <MessageID xmlns="http://www.w3.org/2005/08/addressing">testAlreadyRegisteredProtocolIdentifierException</Messag...>
      <To xmlns="http://www.w3.org/2005/08/addressing">http://localhost:8080/ws-c11/RegistrationService</To>
      <ReplyTo xmlns="http://www.w3.org/2005/08/addressing">
         <Address>http://localhost:8080/ws-c11/RegistrationResponseService</Address>
      </ReplyTo>
      <FaultTo xmlns="http://www.w3.org/2005/08/addressing">
         <Address>http://localhost:8080/ws-c11/CoordinationFaultService</Address>
      </FaultTo>
      <wsarj:InstanceIdentifier xmlns:wsarj="http://schemas.arjuna.com/ws/2005/10/wsarj" xmlns="http://www.w3.org/2005/08/addressing" xmlns:wsa="http://www.w3.org/2005/08/addressing" wsa:IsReferenceParameter="1">identifier</wsarj:InstanceIdentifier>
   </soap:Header>
   <soap:Body>
      <Register xmlns="http://docs.oasis-open.org/ws-tx/wscoor/2006/06" xmlns:ns2="http://www.w3.org/2005/08/addressing">
         <ProtocolIdentifier>http://wsc.example.org/already-registered-protocol-identifier</ProtocolIdentifier>
         <ParticipantProtocolService>
            <ns2:Address>http://wsc.example.org/protocol-participant-service</ns2:Address>
            <ns2:ReferenceParameters>
               <wsarj:InstanceIdentifier xmlns:wsarj="http://schemas.arjuna.com/ws/2005/10/wsarj" xmlns:wsa="http://www.w3.org/2005/08/addressing">participant</wsarj:InstanceIdentifier>
            </ns2:ReferenceParameters>
            <ns2:Metadata>
               <wsam:ServiceName xmlns:wsam="http://www.w3.org/2007/05/addressing/metadata" xmlns:wsa="http://www.w3.org/2005/08/addressing" xmlns:wsaw="http://www.w3.org/2006/05/addressing/wsdl" xmlns:wsc="http://wsc.example.org/" EndpointName="ProtocolParticipantEndpoint">wsc:ProtocolParticipantService</wsam:ServiceName>
            </ns2:Metadata>
         </ParticipantProtocolService>
      </Register>
   </soap:Body>
</soap:Envelope><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
   <soap:Header>
      <Action xmlns="http://www.w3.org/2005/08/addressing">http://schemas.xmlsoap.org/wsdl/soap/envelope/fault</Act...>
      <MessageID xmlns="http://www.w3.org/2005/08/addressing">urn:uuid:e4953fa1-0dc2-41cb-a565-0f446fa0e86c</MessageID>
      <To xmlns="http://www.w3.org/2005/08/addressing">http://localhost:8080/ws-c11/CoordinationFaultService</T...>
      <RelatesTo xmlns="http://www.w3.org/2005/08/addressing">testAlreadyRegisteredProtocolIdentifierException</Relate...>
   </soap:Header>
   <soap:Body>
      <soap:Fault>
         <faultcode xmlns:wscoor="http://docs.oasis-open.org/ws-tx/wscoor/2006/06">wscoor:CannotRegister</faultcode>
         <faultstring>Sender</faultstring>
         <detail>
            <wscoor:CannotRegister xmlns:wscoor="http://docs.oasis-open.org/ws-tx/wscoor/2006/06">ARJUNA042081: Participant already registered</wscoor:CannotRegister>
         </detail>
      </soap:Fault>
   </soap:Body>
</soap:Envelope>
Francesco Marchioni: The Exception message seem not correct: It's "Participant already registered"

Francesco Marchioni: RegistrationServiceTest there's one similar
Francesco Marchioni: <soap:Header>
    <Action xmlns="http://www.w3.org/2005/08/addressing">http://schemas.xmlsoap.org/wsdl/soap/envelope/fault</Act...>
    <MessageID xmlns="http://www.w3.org/2005/08/addressing">urn:uuid:ff6387eb-df3a-4e97-9349-d39c042ac584</MessageID>
    <To xmlns="http://www.w3.org/2005/08/addressing">http://localhost:8080/ws-c11/CoordinationFaultService</T...>
    <RelatesTo xmlns="http://www.w3.org/2005/08/addressing">testUnknownCoordinationType</RelatesTo>
  </soap:Header>
  <soap:Body>
    <soap:Fault>
      <faultcode xmlns:wscoor="http://docs.oasis-open.org/ws-tx/wscoor/2006/06">wscoor:InvalidProtocol</faultcode>
      <faultstring>Sender</faultstring>
      <detail>
        <wscoor:InvalidParameters xmlns:wscoor="http://docs.oasis-open.org/ws-tx/wscoor/2006/06">ARJUNA042082: Invalid protocol identifier</wscoor:InvalidParameters>
      </detail>
    </soap:Fault>
  </soap:Body>
</soap:Envelope>
Francesco Marchioni: It says "invalid protocol identifier" for a test of unknownCoordinationType