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https://issues.apache.org/jira/browse/FLINK-12303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17336489#comment-17336489
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Flink Jira Bot commented on FLINK-12303:
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This issue was labeled "stale-major" 7 ago and has not received any updates so
it is being deprioritized. If this ticket is actually Major, please raise the
priority and ask a committer to assign you the issue or revive the public
discussion.
> 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
> Labels: stale-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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