WebLogic Server Latest PSU/Security Patch Causes (de)serialization time errors in a Coherence Cluster with JDK Upgrade, Why?

(Doc ID 2333719.1)

Last updated on DECEMBER 06, 2017

Applies to:

Oracle Coherence - Version 12.1.3.0.0 and later
Oracle WebLogic Server - Version 12.1.3.0.0 and later
Information in this document applies to any platform.

Symptoms

Customer reported that after applying latest WebLogic security patches (PSUs) on WebLogic 12.1.3 installation they started getting Coherence cache (session) data (de)serialization errors in certain situations. They have seen the same issue with the latest version of WebLogic Server 12.2.1.3.0. Later they have rolled back the critical security patches but that is only temporary fix.

 

Cause

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