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https://issues.apache.org/jira/browse/FLINK-12328?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16825678#comment-16825678
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vinoyang commented on FLINK-12328:
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[~chauncy] Absolutely yes! Any contribution is welcome. Some minor suggestion,
it would be better to make the issue title and description more clear.
> Invalid Express
> ---------------
>
> Key: FLINK-12328
> URL: https://issues.apache.org/jira/browse/FLINK-12328
> Project: Flink
> Issue Type: Improvement
> Affects Versions: 1.8.0
> Reporter: chauncy
> Priority: Major
>
> TestObjectWithBogusReturns#run
> try {
> nums.map { x => return 1; x * 2}.print()
> } catch {
> case inv: ReturnStatementInClosureException => // all good
> case _: Throwable => fail("Bogus return statement not detected.")
> }
> this is nums.map function ,x*2 is invalid
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