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https://issues.apache.org/jira/browse/HADOOP-15261?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Akira Ajisaka updated HADOOP-15261:
-----------------------------------
       Resolution: Fixed
     Hadoop Flags: Reviewed
    Fix Version/s: 3.2.0
           Status: Resolved  (was: Patch Available)

Committed this to trunk. Thanks [~PandaMonkey]!

> Upgrade commons-io from 2.4 to 2.5
> ----------------------------------
>
>                 Key: HADOOP-15261
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15261
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: minikdc
>    Affects Versions: 3.0.0-alpha3
>            Reporter: PandaMonkey
>            Priority: Major
>             Fix For: 3.2.0
>
>         Attachments: 347.patch, hadoop.txt
>
>
> Hi, after analyzing hadoop-common-project\hadoop-minikdc\pom.xml, we found 
> that Hadoop depends on org.apache.kerby:kerb-simplekdc 1.0.1, which 
> transitivity introduced commons-io:2.5. 
> At the same time, hadoop directly depends on a older version of 
> commons-io:2.4. By further look into the source code, these two versions of 
> commons-io have many different features. The dependency conflict problem 
> brings high risks of "NotClassDefFoundError:" or "NoSuchMethodError" issues 
> at runtime. Please notice this problem. Maybe upgrading commons-io from 2.4 
> to 2.5 is a good choice. Hope this report can help you. Thanks!
>  



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