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https://issues.apache.org/jira/browse/HBASE-20587?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16476150#comment-16476150
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Josh Elser commented on HBASE-20587:
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{quote}You mean our JsonMapper has a reference to Jackson's ObjectMapper.
{quote}
Yes, thank you :)
{quote}should we shade jackson in hbase-thirdparty?
{quote}
Just had that same thought over on HBASE-20852. I'm not sure if there's a 
reason we haven't yet shaded it, but that would help.

> Remove hbase-common Jackson dependency
> --------------------------------------
>
>                 Key: HBASE-20587
>                 URL: https://issues.apache.org/jira/browse/HBASE-20587
>             Project: HBase
>          Issue Type: Bug
>          Components: dependencies
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>            Priority: Major
>         Attachments: HBASE-20587.001.patch
>
>
> HBASE-20582 got me looking at how we use Jackson. It appears that we moved 
> some JSON code from hbase-server into hbase-common via HBASE-19053. But, 
> there seems to be no good reason why this code should live there and not in 
> hbase-http instead. Keeping Jackson off the user's classpath is a nice goal.
> FYI [~appy], [~mdrob]



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