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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-4751) TestLeaseRenewer#testThreadName flakes
Date Fri, 26 Apr 2013 18:26:15 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4751?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Wang updated HDFS-4751:
------------------------------

    Status: Patch Available  (was: Open)
    
> TestLeaseRenewer#testThreadName flakes
> --------------------------------------
>
>                 Key: HDFS-4751
>                 URL: https://issues.apache.org/jira/browse/HDFS-4751
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 3.0.0, 2.0.5-beta
>            Reporter: Andrew Wang
>            Assignee: Andrew Wang
>            Priority: Minor
>         Attachments: hdfs-4751-1.patch
>
>
> Seen internally and during upstream trunk builds, error like the following:
> {noformat}
> Error Message:
>  Unfinished stubbing detected here: -> at org.apache.hadoop.hdfs.TestLeaseRenewer.testThreadName(TestLeaseRenewer.java:197)
 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)
> Stack Trace:
> org.mockito.exceptions.misusing.UnfinishedStubbingException:
> Unfinished stubbing detected here:
> -> at org.apache.hadoop.hdfs.TestLeaseRenewer.testThreadName(TestLeaseRenewer.java:197)
> {noformat}
> I believe it's due to mocking while being concurrently accessed by another thread.

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