To run the tutorial examples in NetBeans IDE, you must register your Application Server installation as a NetBeans Server Instance. Follow these instructions to register the Application Server in NetBeans IDE.
Select Tools->Server Manager to open the Server Manager dialog.
Click Add Server.
Under Server, select Sun Java System Application Server and click Next.
Under Platform Location, enter the location of your Application Server installation.
Select Register Local Default Domain and click Next.
Under Admin Username and Admin Password, enter the admin name and password created when you installed the Application Server.