What DEBUG message? There are millions of them. JBoss AS uses Log4J to output log messages, many of which go to the console. Usually only INFO and higher messages go to the console.
This is the DEBUG message
DEBUG [org.jboss.resource.connectionmanager.IdleRemover] run: IdleRemover notifying pools, interval: 450000
I'm getting this message for every 7.5 mins.
Thanks in Advance.
Looks like this is the thread that makes sure that idle connections (ones that were used but are no longer in use) are removed. Since each connection is represented by a thread, this removes the idle threads.
You can set the thread limits in the server/xxx/deployer/jboss-web.deployer/server.xml file (you never indicated which version of JBoss AS you are using, so I assumed 4.2.1)