Truong Duc Kien created FLINK-9052:
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Summary: Flink complains when scala.Option is used inside POJO
Key: FLINK-9052
URL: https://issues.apache.org/jira/browse/FLINK-9052
Project: Flink
Issue Type: Bug
Components: Type Serialization System
Affects Versions: 1.4.2
Reporter: Truong Duc Kien
According to the documentation, Flink has a specialized serializer for Option
type. However, when an Option field is used inside a POJO, the following
WARNING appears in TaskManagers' log.
{{No fields detected for class scala.Option. Cannot be used as a PojoType. Will
be handled as GenericType}}
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