An application must be successfully deployed before it can be accessed.
Verify that the application was successfully deployed. There are several ways to do this:
Check the server's log file for related entries:
Use the asadmin list-applications command to determine which applications are deployed.
View the Applications page in the Administration Console, accessed by clicking the Applications node.
For more information about deploying applications, see Chapter 2, Deploying Applications, in Oracle GlassFish Server 3.0.1 Application Deployment Guide. Also see the Administration Console online help.