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https://issues.apache.org/jira/browse/SOLR-16145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17536152#comment-17536152
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ASF subversion and git services commented on SOLR-16145:
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Commit a383179e88473695d2acad378b19e19294923c96 in lucene-solr's branch
refs/heads/branch_8_11 from David Smiley
[ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=a383179e884 ]
SOLR-16145: NPE fix in rejoinOverseerElection (#793)
Fix very rare NPE in SolrCloud rejoinOverseerElection.
Introduced by SOLR-13410
Backported from
https://github.com/apache/solr/commit/ef2b725931ddd547e08d0f13f96e985f22653e4a
> Overseer rejoinOverseerElection NPE
> -----------------------------------
>
> Key: SOLR-16145
> URL: https://issues.apache.org/jira/browse/SOLR-16145
> Project: Solr
> Issue Type: Bug
> Affects Versions: 7.7.2
> Reporter: David Smiley
> Assignee: David Smiley
> Priority: Major
> Fix For: 9.1
>
> 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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