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https://issues.apache.org/jira/browse/FLINK-2457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14650655#comment-14650655
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Aljoscha Krettek commented on FLINK-2457:
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I think [~Zentol] mentioned that Tuple0 is required for the Python API. So I
would wait on his input here.
> Tuple.getTupleClass cannot generate Tuple0
> ------------------------------------------
>
> Key: FLINK-2457
> URL: https://issues.apache.org/jira/browse/FLINK-2457
> Project: Flink
> Issue Type: Improvement
> Environment: Tuple.getTupleClass(int arity) cannot handle arity zero,
> ie, cannot create an instance of Tuple0. This can be fixed by either
> extending getTupleClass(...) or by removing Tuple0 in case it is not a useful
> class anyway.
> Reporter: Matthias J. Sax
> Assignee: Matthias J. Sax
> Priority: Minor
>
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