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Connection Events Are Not Raised When Logical Connection Is Closed In JDBC Driver 12c (Doc ID 2400375.1)

Last updated on MAY 24, 2018

Applies to:

JDBC - Version 12.1.0.1.0 to 12.2.0.0.0 [Release 12.1 to 12c]
Information in this document applies to any platform.

Symptoms

In Oracle JDBC Driver 12.1.0.1 or later, connectionClosed / connectionErrorOccurred events are not raised when a logical connection is closed.

This results in possible connection leak in some connection pool managers which are used in connection events implemented by javax.sql.ConnectionEventListener.

Reference:
javax.sql
Interface ConnectionEventListener

 If using Universal Connection Pool (UCP), connection leak does not occur since UCP does not use these connection events for managing connections.

Changes

 

Cause

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