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https://issues.apache.org/jira/browse/HDFS-10284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15241806#comment-15241806
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Mingliang Liu commented on HDFS-10284:
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[~brahmareddy], would you review this for me? Thanks.
> o.a.h.hdfs.server.blockmanagement.TestBlockManagerSafeMode.testCheckSafeMode
> fails intermittently
> -------------------------------------------------------------------------------------------------
>
> Key: HDFS-10284
> URL: https://issues.apache.org/jira/browse/HDFS-10284
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: test
> Affects Versions: 2.9.0
> Reporter: Mingliang Liu
> Assignee: Mingliang Liu
> Priority: Minor
> Attachments: HDFS-10284.000.patch
>
>
> *Stacktrace*
> {code}
> org.mockito.exceptions.misusing.UnfinishedStubbingException:
> Unfinished stubbing detected here:
> -> at
> org.apache.hadoop.hdfs.server.blockmanagement.TestBlockManagerSafeMode.testCheckSafeMode(TestBlockManagerSafeMode.java:169)
> E.g. thenReturn() may be missing.
> Examples of correct stubbing:
> when(mock.isOk()).thenReturn(true);
> when(mock.isOk()).thenThrow(exception);
> doThrow(exception).when(mock).someVoidMethod();
> Hints:
> 1. missing thenReturn()
> 2. although stubbed methods may return mocks, you cannot inline mock
> creation (mock()) call inside a thenReturn method (see issue 53)
> at
> org.apache.hadoop.hdfs.server.blockmanagement.TestBlockManagerSafeMode.testCheckSafeMode(TestBlockManagerSafeMode.java:169)
> {code}
> Sample failing pre-commit UT:
> https://builds.apache.org/job/PreCommit-HDFS-Build/15153/testReport/org.apache.hadoop.hdfs.server.blockmanagement/TestBlockManagerSafeMode/testCheckSafeMode/
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