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Timeout waiting for free connection

 
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At times I am getting the following error in my application - com.ibm.ejs.cm.pool.ConnectionWaitTimeoutException: Timeout waiting for free connection
I am using DataSource to connect to the oracle database. Ihave used this finally block to close the connection once its done. Is it necessary to close ResultSet and Statement objects also..??

 
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I'm not skilled in exact these things, but I could say clear and simple:
you should close everything that has close() method.
 
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