BasicDAOImplementation

I have a question regarding the update() method in
org.apache.basicWebLib.DAO.BasicDAOImplementation.java. Notice how at
the end of the method, in the "finally" block, the connection is closed?
How come instead we don't release this connection back to the pool?

In fact I checked the API for
org.apache.commons.dbcp.jdbc2pool.Jdbc2PoolDataSource, and there doesn't
seem to *be* any method which would release the connection back to the
pool... So I guess my real question is "why isn't there a
releaseConnection(Connection) method in this class"?

Thanks,
Geeta