Fabian Hueske created FLINK-19321:
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Summary: CollectSinkFunction does not define serialVersionUID
Key: FLINK-19321
URL: https://issues.apache.org/jira/browse/FLINK-19321
Project: Flink
Issue Type: Bug
Components: Table SQL / Runtime
Affects Versions: 1.11.2, 1.12.0
Reporter: Fabian Hueske
The {{org.apache.flink.streaming.api.operators.collect.CollectSinkFunction}}
function does not define a {{serialVersionUID}}.
Function objects are serialized using Java Serialization and should define a
{{serialVersionUID.}}
If no o serialVersionUID is defined, Java automatically generates IDs to check
compatibility of objects during deserialization. However, the generation
depends on the environment (JVM, class version, etc.) and can hence lead to
{{[java.io|http://java.io/].InvalidClassException}} even if the classes are
compatible.
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