question about cannot connect guacd directly in java class by using GuacamoleSocket

[tina wang]

Hi There:

   I read Writing your own Guacamole application 
<http://guacamole.incubator.apache.org/doc/gug/writing-you-own-guacamole-app.html> 
to create a dummy web application, but it fail when connect guacd with 
the error: Connection refused: connect

   I can confirm guacd is started, because I can connect using 
guacamole own webapplication. do you know why the connecton is refused. 
I need provide authentication? if so, how? Any comments would be very 
appreciated.

Regards

-Tina