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Felix Hagemans updated AVRO-4166: --------------------------------- Description: 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 works: {"name": "nan", "type": ["null", "string"]} But 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_ was: 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 works: {"name": "nan", "type": ["null", "string"]}, But 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_ > 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 works: > {"name": "nan", "type": ["null", "string"]} > > But 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_ -- This message was sent by Atlassian Jira (v8.20.10#820010)