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WLS 9.2 MP3 - SERIALIZATION/DESERIALIZATION JAVA.LANG.CLASSNOTFOUNDEXCEPTION (Doc ID 1075071.1)

Last updated on AUGUST 12, 2021

Applies to:

Oracle WebLogic Server - Version 9.2 to 10.3.2
Information in this document applies to any platform.

Symptoms

An equinox framework (based on OSGi framework) in a non clustered environment is being used that has session persistence turned off (say just a single server). The equinox core servlet uses the code snippet where it is loading the class within the thread scope and creating a session attribute within the same thread scope. After 10 seconds customer is invalidating the sessions. At this point weblogic server uses a different thread to invalidate the session. Since the new thread doesn't know about the other thread scope, it fails to deserialize and a "ClassNotFound" exception is found.

Changes

None.

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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