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https://issues.apache.org/jira/browse/HADOOP-12705?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15633535#comment-15633535
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Sean Mackrory commented on HADOOP-12705:
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2.7.8 seems a happy balance. Very recent release, is apparently not vulnerable
to that XEE bug, and changes to hadoop-rumen are not required to build or pass
tests successfully.
> Upgrade Jackson 2.2.3 to 2.5.3 or later
> ---------------------------------------
>
> Key: HADOOP-12705
> URL: https://issues.apache.org/jira/browse/HADOOP-12705
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: build
> Affects Versions: 2.8.0
> Reporter: Steve Loughran
> Attachments: HADOOP-12705.002.patch, HADOOP-12705.01.patch,
> HADOOP-13050-001.patch
>
>
> There's no rush to do this; this is just the JIRA to track versions. However,
> without the upgrade, things written for Jackson 2.4.4 can break ( SPARK-12807)
> being Jackson, this is a potentially dangerous update.
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