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https://issues.apache.org/jira/browse/FLINK-20050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17228739#comment-17228739
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Jiangjie Qin commented on FLINK-20050:
--------------------------------------
[~xuannan] Yes, you are right. The methods visible for testing should also be
changed to adapt to the asynchronous {{RecreateOnResetOperatorCoordinator}}.
I'll put a fix shortly.
> SourceCoordinatorProviderTest.testCheckpointAndReset failed with
> NullPointerException
> -------------------------------------------------------------------------------------
>
> Key: FLINK-20050
> URL: https://issues.apache.org/jira/browse/FLINK-20050
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Common
> Affects Versions: 1.12.0
> Reporter: Dian Fu
> Priority: Critical
> Labels: test-stability
> Fix For: 1.12.0
>
>
> https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=9322&view=logs&j=77a9d8e1-d610-59b3-fc2a-4766541e0e33&t=7c61167f-30b3-5893-cc38-a9e3d057e392
> {code}
> 2020-11-08T22:24:39.5642544Z [ERROR]
> testCheckpointAndReset(org.apache.flink.runtime.source.coordinator.SourceCoordinatorProviderTest)
> Time elapsed: 0.954 s <<< ERROR!
> 2020-11-08T22:24:39.5643055Z java.lang.NullPointerException
> 2020-11-08T22:24:39.5643578Z at
> org.apache.flink.runtime.source.coordinator.SourceCoordinatorProviderTest.testCheckpointAndReset(SourceCoordinatorProviderTest.java:94)
> {code}
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