The cached connection will become stale and throw exception when you try to do some database operations. You should explicitly open and close the connection whenever it is possible. By using some connection pooling data source, open connection means obtaining an opened connection from the pool and close is to return the connection back to the pool. The pool can be configured to invalidate the stale connection and recreate them.
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Joined: Jul 04, 2004
I posted the doubt with reference to the below post...