How can UNCLOSED connection be found in OC4J/Oracle?

I fixed and use Connection Pool to get the DB Connection from JSP to Oracle Database now.

But then I found out from the OC4J console at once that there are many UNCLOSED/NOT-CLOSED connection.

I am using OC4J 9.0.4.1 and Oracle 10g. Is there any effective way to f开发者_JS百科ind out the location or area that the connection is not closed.

In addition, I would like to know the followings:

1) The UNCLOSED connection means the Connection or ResultSet or Statment ? 2) IF Connection for the ResultSet and Statement is closed, the corresponding ResultSet and Statement are closed automatically too ?

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I'd expect that this is easiest to detect on the server side - one assumes (!) that there is a 'show me all the open connections' report or command on the server that should show up a list of those connections together with the last executed SQL on that connection (am coming from the MSSQL side of things here - this doesn't sound like too much of a stretch, tho').

Unclosed means that the connection has not been closed.