Github user tzulitai commented on the issue:
https://github.com/apache/flink/pull/4473
@bowenli86 on the other hand, in the constructors of
`FlinkKinesisProducer`, we probably should add eager safe checks on the
serializability of the provided `KinesisSerializationSchema` and have good
error messages in case it isn't serializable. I'll open a separate JIRA / PR
for that.
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