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https://issues.apache.org/jira/browse/HADOOP-10489?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14000911#comment-14000911
]
Hadoop QA commented on HADOOP-10489:
------------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12644943/HADOOP-10489.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}. There were no new javadoc 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-common-project/hadoop-common.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HADOOP-Build/3950//testReport/
Console output:
https://builds.apache.org/job/PreCommit-HADOOP-Build/3950//console
This message is automatically generated.
> UserGroupInformation#getTokens and UserGroupInformation#addToken can lead to
> ConcurrentModificationException
> ------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-10489
> URL: https://issues.apache.org/jira/browse/HADOOP-10489
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Jing Zhao
> Assignee: Robert Kanter
> Attachments: HADOOP-10489.patch
>
>
> Currently UserGroupInformation#getTokens and UserGroupInformation#addToken
> uses UGI's monitor to protect the iteration and modification of
> Credentials#tokenMap. Per
> [discussion|https://issues.apache.org/jira/browse/HADOOP-10475?focusedCommentId=13965851&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13965851]
> in HADOOP-10475, this can still lead to ConcurrentModificationException.
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