technical euSoapUI

When you create a SoapUI project based on the EU web services, the will not be defined (because it is not in the wsdl and if you know how to mix generic and wsdl feel free to tell me).

You will usually get the following message:
com.sun.org.apache.xerces.internal.dom.ElementNSImpl cannot be cast to com.mkl.eu.client.service.service.board.LoadGameRequest

The trick is to tell the type with the following:
<request xsi:type="ser:loadGameRequest"> <idGame>1</idGame> </request>