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Coherence Cluster POF Serialization Error Caused By: Portable(java.io.StreamCorruptedException): Unknown User Type: NNNN (Doc ID 2430081.1)

Last updated on AUGUST 10, 2018

Applies to:

Oracle Coherence - Version 12.2.1.2.0 and later
Information in this document applies to any platform.

Symptoms

On 12.2.1.2.x version, user is facing intermittent POF "unknown user type exception" while accessing to particular cache. Actually, custom pof implemented object user-type is defined and exists in the cluster's pof configuration loaded. However, user not known reason for this runtime error.

 

Cause

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