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https://issues.apache.org/jira/browse/HADOOP-16485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16899654#comment-16899654
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Steve Loughran commented on HADOOP-16485:
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It is tagged @Private/Evolving and mostly gets used for
* conversion to from a map. This is something json can do. Uses, KMS,
hadoop-azure, ..
*in hadoop-aws ser/deser of the s3a committer .pendingset and _SUCCESS files.
These (private) classes can be changed however we want; I'd prefer the
persistence formats to stay the same but that's all.
* hadoop-registry persistence of records in ZK. Again, whatever changes needed
for gson are viable there.
> Remove dependency on jackson
> ----------------------------
>
> Key: HADOOP-16485
> URL: https://issues.apache.org/jira/browse/HADOOP-16485
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Wei-Chiu Chuang
> Priority: Major
>
> Looking at git history, there were 5 commits related to updating jackson
> versions due to various CVEs since 2018. And it seems to get worse more
> recently.
> File this jira to discuss the possibility of removing jackson dependency once
> for all. I see that jackson is deeply integrated into Hadoop codebase, so not
> a trivial task. However, if Hadoop is forced to make a new set of releases
> because of Jackson vulnerabilities, it may start to look not so costly.
> At the very least, consider stripping jackson-databind coode, since that's
> where the majority of CVEs come from.
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