Calling a ReducerAggregator From C++ or .NET That Returns a NullImplementation$NullMap Value Results In The Error "unknown user type: 17" Being Reported by the Client (Doc ID 1573612.1)

Last updated on NOVEMBER 03, 2016

Applies to:

Oracle Coherence - Version 3.7.1 to 3.7.1.8 [Release AS10g]
Information in this document applies to any platform.

Symptoms

Using a ReducerAggregator from either a Coherence .NET or C++ client, which returns a null value, NullImplementation$NullMap, results in the error:

 

Cause

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