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https://issues.apache.org/jira/browse/HBASE-17312?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guanghao Zhang updated HBASE-17312:
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Attachment: HBASE-17312.master.001.patch
Try to trigger Hadoop QA again.
> [JDK8] Use default method in XXXObserver
> ----------------------------------------
>
> 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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