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WebLogic Server (WLS) 9.2.2 Managed Server Fails to Start with java.lang.ClassCastException: java.lang.String after Upgrading Admin Server to WLS 9.2.3 (Doc ID 1165577.1)

Last updated on SEPTEMBER 15, 2021

Applies to:

Oracle WebLogic Server - Version 9.2 and later
Information in this document applies to any platform.

Symptoms

With WebLogic Server (WLS) recently upgraded from WLS 9.2 MP2 to WLS 9.2 MP3 on the Admin Server machine, the Admin Server starts successfully. However, managed servers at WLS 9.2 MP2 fail to start, throwing this exception in the managed server log:

 


To start the managed server successfully after this issue occurs, clear the managed server cache.

Cause

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In this Document
Symptoms
Cause
Solution
References


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