adata
                      as required by this method.
                    <li>If the <code>endpointReference</code> metadata does
                      not match the <code>serviceName</code> or <code>portName</code>
                      of a WSDL associated
                      with this <code>Service</code> instance.
                    <li>If the <code>portName</code> cannot be determined
                    from the <code>EndpointReference</code> metadata.
                    <li>If any error in the 