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https://issues.apache.org/jira/browse/SOLR-16145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17527880#comment-17527880
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ASF subversion and git services commented on SOLR-16145:
--------------------------------------------------------

Commit 231435a8cfb3e71d346b073d009bf83599914f47 in solr's branch 
refs/heads/branch_9x from David Smiley
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=231435a8cfb ]

SOLR-16145: NPE fix in rejoinOverseerElection (#793)

Fix very rare NPE in SolrCloud rejoinOverseerElection.
Introduced by SOLR-13410

> Overseer rejoinOverseerElection NPE
> -----------------------------------
>
>                 Key: SOLR-16145
>                 URL: https://issues.apache.org/jira/browse/SOLR-16145
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>    Affects Versions: 7.7.2
>            Reporter: David Smiley
>            Assignee: David Smiley
>            Priority: Major
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> After SOLR-13410, an NPE can occur if 
> {{overseerElector.getContext().leaderSeqPath}} is null.  I observed this in a 
> test.  The fix looks clear; the null check is inverted.



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