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https://issues.apache.org/jira/browse/HBASE-25332?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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lujie resolved HBASE-25332.
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Resolution: Fixed
> one NPE
> -------
>
> Key: HBASE-25332
> URL: https://issues.apache.org/jira/browse/HBASE-25332
> Project: HBase
> Issue Type: Bug
> Components: Zookeeper
> Reporter: lujie
> Assignee: lujie
> Priority: Major
> Fix For: 3.0.0-alpha-1, 2.4.0, 2.2.7, 2.3.4
>
>
> * getData can return null at
>
> [https://github.com/apache/hbase/blob/1726160839368df14602da1618e3538955b25f74/hbase-zookeeper/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKUtil.java#L615]
> or
>
> [https://github.com/apache/hbase/blob/1726160839368df14602da1618e3538955b25f74/hbase-zookeeper/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKUtil.java#L619]
> all its caller have null checker except at
>
> [https://github.com/apache/hbase/blob/1726160839368df14602da1618e3538955b25f74/hbase-server/src/main/java/org/apache/hadoop/hbase/rsgroup/RSGroupInfoManagerImpl.java#L467]
> We shoud add null check for pontential NPEs.
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