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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4751) TestLeaseRenewer#testThreadName flakes
Date Sat, 11 May 2013 14:07:17 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13655279#comment-13655279
] 

Hudson commented on HDFS-4751:
------------------------------

Integrated in Hadoop-Mapreduce-trunk #1422 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1422/])
    HDFS-4751. TestLeaseRenewer#testThreadName flakes. Contributed by Andrew Wang. (Revision
1481160)

     Result = SUCCESS
atm : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1481160
Files : 
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/LeaseRenewer.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestLeaseRenewer.java

                
> 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
>             Fix For: 2.0.5-beta
>
>         Attachments: hdfs-4751-1.patch, hdfs-4751-2.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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