AS400 and JDBC Connection in QUSRWRK subsystem for ever

Hi
I have web application in which i am using
AS400ConnectionPool and AS400JDBCConnectionPool for
AS400 and JDBC Connections,
But i see about 5-6 connections for each user in
QUSRWRK
and they seem to be there for ever. They are never
removed from the system untill i restart the web
application server or IPL the AS400,
What may be the reason, why is a new AS400 connection
of JDBC connection created when one is existing,
I take care or returning all the connections back to
pool after each time i use them in program.
It seems that one connection is created daily but the
old one is still sitting in system
How can I manage and solve this problem
Ashish


=====
A$HI$H

__________________________________
Do you Yahoo!?
Yahoo! SiteBuilder - Free web site building tool. Try it!
http://webhosting.yahoo.com/ps/sb/