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https://issues.apache.org/jira/browse/FLINK-7816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16201707#comment-16201707
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Aljoscha Krettek commented on FLINK-7816:
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How can we check whether a class is a closure? I think all classes have a
closure, which might be empty, but the code should still work with that and
then just not clean anything.
> Support Scala 2.12 closures and Java 8 lambdas in ClosureCleaner
> ----------------------------------------------------------------
>
> Key: FLINK-7816
> URL: https://issues.apache.org/jira/browse/FLINK-7816
> Project: Flink
> Issue Type: Sub-task
> Components: Scala API
> Reporter: Aljoscha Krettek
>
> We have the same problem as Spark: SPARK-14540
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