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https://issues.apache.org/jira/browse/HADOOP-11211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14217548#comment-14217548
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Hadoop QA commented on HADOOP-11211:
------------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12682358/HADOOP-11211.patch
against trunk revision 5bd048e.
{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 2.0.3) 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
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HADOOP-Build/5103//testReport/
Console output:
https://builds.apache.org/job/PreCommit-HADOOP-Build/5103//console
This message is automatically generated.
> mapreduce.job.classloader.system.classes property behaves differently when
> the exclusion and inclusion order is different
> -------------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-11211
> URL: https://issues.apache.org/jira/browse/HADOOP-11211
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: hudson
> Reporter: Yitong Zhou
> Assignee: Yitong Zhou
> Fix For: hudson
>
> Attachments: HADOOP-11211.patch
>
>
> If we want to include package foo.bar.* but exclude all sub packages named
> foo.bar.tar.* in system classes, configuring
> "mapreduce.job.classloader.system.classes=foo.bar.,-foo.bar.tar." won't work.
> foo.bar.tar will still be pulled in. But if we change the order:
> "mapreduce.job.classloader.system.classes=-foo.bar.tar.,foo.bar.", then it
> will work.
> This bug is due to the implementation of ApplicationClassLoaser#isSystemClass
> in hadoop-common, where we simply return the matching result immediately when
> the class name hits the first match (either positive or negative).
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