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https://issues.apache.org/jira/browse/HBASE-20420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ted Yu reassigned HBASE-20420:
------------------------------

    Assignee: lujie

> Fix Some Potential NPE 
> -----------------------
>
>                 Key: HBASE-20420
>                 URL: https://issues.apache.org/jira/browse/HBASE-20420
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 2.0.0-beta-2
>            Reporter: lujie
>            Assignee: lujie
>            Priority: Major
>         Attachments: HBASE-20420_2.patch, hbase-20420.patch
>
>
> We have used the  tool [NPEDetector|https://github.com/lujiefsi/NPEDetector] 
> find another  six problems that similar to  HBASE-20419.
> list here and attach the patch.
>  CommonFSUtils#listStatus
> RSGroupInfoManagerImpl#getRSGroupOfServer
> BackupSystemTable#readBackupInfo
> SnapshotManifest#getRegionManifestsMap
> HRegionFileSystem#getFamilies
> Result#getFamilyMap



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