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Mismatch in Version of Class Being Loaded at RunTime and Compile Time by WebLogic JVM Leads to NoClassDefFound Error (Doc ID 2978169.1)

Last updated on OCTOBER 03, 2023

Applies to:

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


The following error is logged when WebLogic is trying to activate a Custom application deployment

as part of Custom application upgrade process.



 Custom Application version upgrade was being attempted in Customer Environment when the said problem symptoms were detected.


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