Setup
I\'m using Netbeans 7.4
on Mac OSX Mavericks and Glassfish 4.0 (build 89)
on my dedicated server and JDK
If NetBeans can't talk to the server when you add it to the list then it silently fails. The server appears in the list but you can't click on the + and expand it out to see what it contains.
Check in your server list that NetBeans can actually see the server. Also keep in mind that NetBeans needs access to the admin port (usually 4848) not the normal web one, although it looks like your tunnel is correct for that.
You also need to turn on remote administration and set up the username and password etc. Try pointing a web browser to your localhost 6122 and check you can log in to the admin panel using the same username and password that netbeans is using.
To turn on remote administration:
https://blogs.oracle.com/quinn/entry/securing_adminstration_in_glassfish_server1
asadmin enable-secure-admin
You will also need to add an administrator username and password.