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https://issues.apache.org/jira/browse/HDFS-4751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13646331#comment-13646331
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Hadoop QA commented on HDFS-4751:
---------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12581293/hdfs-4751-2.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 1.3.9) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-hdfs-project/hadoop-hdfs.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/4350//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/4350//console
This message is automatically generated.
> 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, 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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