There are multiple situations where Avaya System Manager JBoss needs to be restarted, in my case multiple alerts from different Avaya systems about loosing connectivity to the Web License Manager (CM, SBCE and AES) were received.

After troubleshooting the problem, it was narrowed down to the JBoss process in the System Manager which had to be restarted to clear all the issues.

Here is the command to verify the status and restart the process (root access is required)

#service jboss status

#service jboss restart

Restarting JBoss process is NOT service affecting, but System Manager web administration wont be accessible for about 10 minutes.