InvalidOperationException: Operations that change non-concurrent collections must have exclusive access. A concurrent update was performed on this collection and corrupted its state

[killJoy-03]

I discussed this issue earlier, and it was fixed in this PR.
But I guess in the latest version, it still came 1 or 2 times.

Is it possible that here also you have to use ConcurrentDictionary
neo4j-dotnet-driver\Neo4j.Driver\Neo4j.Driver\Public\Mapping\RecordObjectMapping.cs line 55.

[RichardIrons-neo4j]

This is fixed in the latest bugfix release.

[killJoy-03]

@RichardIrons-neo4j Is there any chance, there is still left Dictionary instead of ConcurrentDictionary while mapping records.
Last week I have removed my custom mapper in my application and it throws the same error after a while.
Didn't get chance to check the stack trace.

[killJoy-03]

@RichardIrons-neo4j

Stack trace

at System.ThrowHelper.ThrowInvalidOperationException_ConcurrentOperationsNotSupported()
at System.Collections.Generic.Dictionary2.TryGetValue(TKey key, TValue& value) at Neo4j.Driver.Internal.MappingExtensions.AsType(Object obj, Type type) at Neo4j.Driver.Internal.Mapping.MappableValueProvider.ConvertToType(Object value, Type propertyType) at Neo4j.Driver.Internal.Mapping.MappableValueProvider.GetConvertedValue(IRecord record, EntityMappingInfo mappingInfo, Type propertyType, Func2 converter)
at Neo4j.Driver.Internal.Mapping.ParameterMapper.<>c__DisplayClass1_11.<GetParameterMappedCall>b__2(IRecord r) at Neo4j.Driver.Internal.Mapping.MappableValueProvider.TryGetMappableValue(IRecord record, Func2 valueGetter, Type desiredType, Object& result)
at Neo4j.Driver.Internal.Mapping.ParameterMapper.<>c__DisplayClass1_01.<GetParameterMappedCall>g__MapFromRecord|1(IRecord record) at Neo4j.Driver.Internal.Mapping.BuiltMapper1.Map(IRecord record)

[killJoy-03]

Hi @RichardIrons-neo4j is anyone looking into this issue?
If this will take time then I will revert my changes and will use custom mapper.
Thanks.

[RichardIrons-neo4j]

Hi there @killJoy-03. Sorry for the radio silence - I will look into this ASAP.