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https://issues.apache.org/jira/browse/FLINK-12334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17336486#comment-17336486
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Flink Jira Bot commented on FLINK-12334:
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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.
> change to MockStreamTask breaks OneInputStreamOperatorTestHarness
> -----------------------------------------------------------------
>
> Key: FLINK-12334
> URL: https://issues.apache.org/jira/browse/FLINK-12334
> Project: Flink
> Issue Type: Bug
> Components: API / DataStream
> Affects Versions: 1.8.0
> Reporter: Cliff Resnick
> Priority: Major
> Labels: stale-major
>
> The move to the MockStreamTask is created with does not include
> initialization of an Accumulator Map when using the builder
> [https://github.com/apache/flink/blob/e43d55445e7abcadb92460bb4d61e28540f1189d/flink-streaming-java/src/test/java/org/apache/flink/streaming/util/AbstractStreamOperatorTestHarness.java#L198]
> This results in with a TestHarness whose context contains an immutable empty
> map and is breaking tests. The fix is simple, please include an actual map in
> the builder call.
>
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