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https://issues.apache.org/jira/browse/HBASE-17312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15870809#comment-15870809
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Andrew Purtell commented on HBASE-17312:
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No discussion needed. My answer is based on a lack of discussion actually. Look
at what's supported on master. Note the lack of discussion about 2.0. :-)
Sure, Phoenix won't be on 1.x forever. When they move to 2.x there will be a
lot of work needed regardless, as you point out [~enis]
> [JDK8] Use default method for Observer Coprocessors
> ---------------------------------------------------
>
> Key: HBASE-17312
> URL: https://issues.apache.org/jira/browse/HBASE-17312
> Project: HBase
> Issue Type: Sub-task
> Components: Coprocessors
> Affects Versions: 2.0.0
> Reporter: Guanghao Zhang
> Assignee: Guanghao Zhang
> Attachments: HBASE-17312.master.001.patch,
> HBASE-17312.master.001.patch
>
>
> Use default method in MasterObserver, RegionObserver, RegionServerObserver
> and WALObserver. And mark the BaseRegionObserver,
> BaseMasterAndRegionObserver, BaseRegionServerObserver and BaseWALObserver.
> User can implement the interface directly and will not break compatibility
> when add new default methods.
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