My Oracle Support Banner

Oracle Universal Pooling For JDBC Is Not Pooling The Connections Successfully (Doc ID 1612855.1)

Last updated on AUGUST 09, 2023

Applies to:

Universal Connection Pool - Version 11.2.0.1.0 and later
Information in this document applies to any platform.

Symptoms

Application deployed on Weblogic is using UCP with a native Microsoft JDBC driver to connect to MSSQL server and getting: oracle.ucp.UniversalConnectionPoolException: Connection borrowing returned null

  



Changes

 The problem was initially thought to be UCP specific as other programs not using UCP has no problems connecting using the same JDBC driver. It turned however that the 2 environments were running using different versions of the JDK.

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
Symptoms
Changes
Cause
Solution


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.