We have observed from the orale db that there is command 0 in V$sessions.. which practically means its doing nothing.
And also we have set idle timeout config as 1 minute. Ideally shouldnt it release all inactive sessions beyond one minute?
or is there a bug is JBoss 7
Fixed the issue.. but not the way i liked it to do. set the cached connection manager attribute [debug="true"]. to trace and close the leaks if and when happens
This configuration might have a performance issue.
Also you should use the shown stacktrace to solve the conneciton leak, this will be the root cause!