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https://issues.apache.org/jira/browse/HBASE-18878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16192259#comment-16192259
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Duo Zhang commented on HBASE-18878:
-----------------------------------
Thanks [~appy] for making progress here. Let’s discuss the Optional as a
parameter problem in HBASE-18926 when I come back.
> Use Optional<T> return types when T can be null
> -----------------------------------------------
>
> Key: HBASE-18878
> URL: https://issues.apache.org/jira/browse/HBASE-18878
> Project: HBase
> Issue Type: Sub-task
> Components: Coprocessors
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Fix For: 2.0.0-alpha-4
>
> Attachments: HBASE-18878.master.001.patch, HBASE-18878.patch,
> HBASE-18878-v1.patch
>
>
> I've already done lots of Nullable to Optional change when purging the
> interfaces for CP. This is a big one so open a separated issue for it.
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