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https://issues.apache.org/jira/browse/HDFS-13452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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lujie updated HDFS-13452:
-------------------------
    Attachment: HDFS-13542_1.patch

> Some Potential NPE 
> -------------------
>
>                 Key: HDFS-13452
>                 URL: https://issues.apache.org/jira/browse/HDFS-13452
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: lujie
>            Priority: Major
>         Attachments: HDFS-13542_1.patch
>
>
> We have developed a static analysis tool 
> [NPEDetector|https://github.com/lujiefsi/NPEDetector] to find some potential 
> NPE, just as descroped in HDFS-13451. We found another two bug or bad 
> practice after improve the tool.
> attach the patch here



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