ChangePasswordRequest req = new ChangePasswordRequest( changePwdPVNO, apReq, privateMessage );
channel = new KerberosChannel();
channel.openConnection( config.getHostName(), config.getPasswdPort(), config.getTimeout(), config.isUseUdp() );
AbstractPasswordMessage reply = sendAndReceiveChngPwdMsg( req, channel );
if ( reply instanceof ChangePasswordError )
{
ChangePasswordError err = ( ChangePasswordError ) reply;