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https://issues.apache.org/jira/browse/HADOOP-13398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15753043#comment-15753043
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Hadoop QA commented on HADOOP-13398:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
22s{color} | {color:blue} Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green}  0m  
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green}  0m 
 0s{color} | {color:green} The patch appears to include 13 new or modified test 
files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 12m 
30s{color} | {color:green} HADOOP-13070 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  9m 
43s{color} | {color:green} HADOOP-13070 passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
33s{color} | {color:green} HADOOP-13070 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 
10s{color} | {color:green} HADOOP-13070 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
24s{color} | {color:green} HADOOP-13070 passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 
31s{color} | {color:green} HADOOP-13070 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
52s{color} | {color:green} HADOOP-13070 passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
38s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  9m 
34s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  9m 
34s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
33s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m  
5s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
24s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} shellcheck {color} | {color:green}  0m 
16s{color} | {color:green} There were no new shellcheck issues. {color} |
| {color:green}+1{color} | {color:green} shelldocs {color} | {color:green}  0m 
22s{color} | {color:green} There were no new shelldocs issues. {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m 
 0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} xml {color} | {color:green}  0m  
2s{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 
36s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
54s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  9m 
46s{color} | {color:green} hadoop-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
37s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 54m 59s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:a9ad5d6 |
| JIRA Issue | HADOOP-13398 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12843505/HADOOP-13398-HADOOP-13070.03.patch
 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  xml  findbugs  checkstyle  shellcheck  shelldocs  |
| uname | Linux 2706fe404747 3.13.0-103-generic #150-Ubuntu SMP Thu Nov 24 
10:34:17 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh 
|
| git revision | HADOOP-13070 / ceb2cb2 |
| Default Java | 1.8.0_111 |
| shellcheck | v0.4.5 |
| findbugs | v3.0.0 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/11288/testReport/ |
| modules | C: hadoop-common-project/hadoop-common U: 
hadoop-common-project/hadoop-common |
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/11288/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> prevent user classes from loading classes in the parent classpath with 
> ApplicationClassLoader
> ---------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-13398
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13398
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: util
>            Reporter: Sangjin Lee
>            Assignee: Sangjin Lee
>            Priority: Critical
>         Attachments: HADOOP-13398-HADOOP-13070.01.patch, 
> HADOOP-13398-HADOOP-13070.02.patch, HADOOP-13398-HADOOP-13070.03.patch
>
>
> Today, a user class is able to trigger loading a class from Hadoop's 
> dependencies, with or without the use of {{ApplicationClassLoader}}, and it 
> creates an implicit dependence from users' code on Hadoop's dependencies, and 
> as a result dependency conflicts.
> We should modify {{ApplicationClassLoader}} to prevent a user class from 
> loading a class from the parent classpath.
> This should also cover resource loading (including 
> {{ClassLoader.getResources()}} and as a corollary {{ServiceLoader}}).



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