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Error when setting up an testing JDBC data source connection after upgrade to Cognos 11.2.1

This article is relevant for organizations that have upgraded from Changepoint V2021 (or before) / Cognos 11.1.x (or before) to Changepoint V2022 and Cognos 11.2.1.  It does not apply to new installations of Cognos 11.2.1

The following steps need to be followed to remove the log4j patch that was added to Cognos 11.1.x:

https://www.ibm.com/support/pages/im...ulnerabilities

Cognos 11.2.1 IF3 is not affected by the log4j issue and failure to remove the previously installed patch (log4jSafeAgent2021.jar) can cause issues.