Ok, thanks. Is there a way to switch this off on a per connection factory level? I would like to get the benefits of the checking for database connections but not on my own session based connections. Also, just out of curiosity, what is the heuristic that jboss uses to decide that a connection has been checked out of the pool long enough and needs closing? cheers View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4054952#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...