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https://issues.apache.org/jira/browse/FLINK-11222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16729371#comment-16729371
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Jeff Zhang commented on FLINK-11222:
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I see, thanks [~dian.fu] then I think it makes sense to do this change
> Change api.scala.DataStream to api.datastream.DataStream for
> createHarnessTester in HarnessTestBase
> ---------------------------------------------------------------------------------------------------
>
> Key: FLINK-11222
> URL: https://issues.apache.org/jira/browse/FLINK-11222
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: Hequn Cheng
> Assignee: Dian Fu
> Priority: Major
>
> Thanks to FLINK-11074, we can create harness tester from a DataStream which
> makes easier to write harness test.
> However, it would be better if we change the parameter type from
> api.scala.DataStream to api.datastream.DataStream for the
> \{{createHarnessTester()}} method, so that both java.DataStream and
> scala.DataStream can use this method.
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