I am on https://rol.redhat.com/rol/app/courses/jb183-7.0/pages/ch03s09.
It has the following step:
"Open a new terminal window and run the following command to grade the lab: [student@workstation ~]$lab ejb-assessment grade."
Please describe this process of Grading. Whose functionality is it? Java/J2EE or a custom program or JBDS or JAP?
so to contact the support, click the "Support" link at the top of the page. This will redirect you to the support portal. From there, the support team will be able to assist you :)
Hope that helps.