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https://issues.apache.org/jira/browse/HADOOP-10018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13786461#comment-13786461
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Daryn Sharp commented on HADOOP-10018:
--------------------------------------
It just needs to be set to something. Instead of a fabricated directory, why
not use the java property {{user.home}} (or whatever it is).
> TestUserGroupInformation throws NPE when HADOOP_HOME is not set
> ---------------------------------------------------------------
>
> Key: HADOOP-10018
> URL: https://issues.apache.org/jira/browse/HADOOP-10018
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Haohui Mai
> Assignee: Haohui Mai
> Priority: Minor
> Attachments: HADOOP-10018.000.patch
>
>
> TestUserGroupInformation throws NPE in System.setProperty() when HADOOP_HOME
> is not set.
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