Java EE (Java Enterprise Edition) General Discussion

I am trying to test j2ee1.4 app server. After starting the default domain (domain1), I follow the link:
http://localhost:8080
But it popups the login screen and asks for username and password for "XDB" at local:8080. I tried the
administrator name and password that I chosed when installing app server. That does not work.

I know the app server is running since I can access the admin console at http://localhost:4848
Just cannot figure out what username/password to use for http://localhost:8080.