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https://issues.apache.org/jira/browse/AVRO-4166?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Felix Hagemans updated AVRO-4166:
---------------------------------
    Language: Java Kotlin  (was: Java)

> Nullable UUID union breaks serialization 
> -----------------------------------------
>
>                 Key: AVRO-4166
>                 URL: https://issues.apache.org/jira/browse/AVRO-4166
>             Project: Apache Avro
>          Issue Type: Bug
>          Components: java
>    Affects Versions: 1.12.0
>         Environment: Apache avro 1.12.0
>            Reporter: Felix Hagemans
>            Priority: Major
>
> It looks like a union type of nullable and UUID breaks in avro 1.12.0.
> This works: 
> {"name": "id", "type": { "type": "string", "logicalType": "uuid" }},
> This does not: 
> {"name": "id", "type": ["null", { "type": "string", "logicalType": "uuid" }]},
> It gives the following exception when (binary) serializing the object:
> _Unknown datum type java.util.UUID: 4b9feca4-f18d-4ba5-97ee-18fc3a24cc6f_



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