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https://issues.apache.org/jira/browse/FLINK-12303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16840509#comment-16840509
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Matěj Novotný commented on FLINK-12303:
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[~aljoscha] I would say that You don't see the bug. My test is ment to just
demonstrate it. I am not collecting timestamps to the object in my real app.
The issue is that classes containing lambdas does not pass thru stream in Scala
2.12.
I have added test with case class what does not contain any lambda to
demonstrate correctness of my test. It does pass.
> Scala 2.12 lambdas does not work in event classes inside streams.
> -----------------------------------------------------------------
>
> Key: FLINK-12303
> URL: https://issues.apache.org/jira/browse/FLINK-12303
> Project: Flink
> Issue Type: Bug
> Components: API / DataStream, API / Scala
> Affects Versions: 1.7.2
> Environment: Scala 2.11/2.12, Oracle Java 1.8.0_172
> Reporter: Matěj Novotný
> Priority: Major
>
> When you use lambdas inside event classes used in streams it does work in
> Scala 2.11. It stoped working in Scala 2.12. It does compile but does not
> process any data and does not throw any exception. I would expect that it
> would not compile in case I have used some not supported field in event class
> or I would throw some exception at least.
>
> For more detail check my demonstration repo, please:
> [https://github.com/matej-novotny/flink-lambda-bug]
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