JBoss EAP tmp directory is filling up with session .ser files ?

Issue

• Is there an automated method or setting in jboss to clean unneeded files in jboss tmp directory? Most of the files are stored under tmp/sessions.
• Our JBoss server is generating too much .ser files and they seem to be for stateful session beans.

• Is there any way to delete these files jboss when not in use ? We are running out of disk space as tmp/ filling up with several GB of data in a few hours

• JBoss EAP produces a lot of session files in the folder $JBOSS_HOME/server/$PROFILE/tmp/sessions, How can we limit the number of created files respectively remove them automatically?

• JBoss is "freezing". i.e our application does not respond and we get timeouts. What we see is that 30000 .ser files are created in the tmp folder (tmp\sessions\TransactionSync-...). And this "freeze" issue seems to occur when the number of files in tmp folder hits around 30000.