HostAddress[] address =
{ new HostAddress( InetAddress.getByName( null ) ) };
HostAddresses addresses = new HostAddresses( address );
modifier.setAddresses( addresses );
RequestBody requestBody = modifier.getRequestBody();
KdcRequest message = getKdcRequest( tgt, requestBody );
handler.messageReceived( session, message );
TicketGrantReply reply = ( TicketGrantReply ) session.getMessage();