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https://issues.apache.org/jira/browse/JCR-3481?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13534000#comment-13534000
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Alex Parvulescu commented on JCR-3481:
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Hi,
I do believe this is a duplicate of JCR-3407, and the NPE protection has been
backported to the 2.4 branch with JCR-3428. You can also see it on the svn
branch directly[0]
Have you guys tried updating to a newer 2.4.x release?
[0]
http://svn.apache.org/viewvc/jackrabbit/branches/2.4/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/DescendantSelfAxisQuery.java?view=markup#l477
> NullPointerException in DescendantSelfAxisScorer#nextDoc
> --------------------------------------------------------
>
> Key: JCR-3481
> URL: https://issues.apache.org/jira/browse/JCR-3481
> Project: Jackrabbit Content Repository
> Issue Type: Bug
> Components: jackrabbit-core
> Affects Versions: 2.4.2
> Environment: Magnolia CMS 4.4.9-jr24, Jackrabbit 2.4.2, Lucene 3.0.3,
> XPath
> Reporter: Edgar Vonk
> Attachments: error-log.txt
>
>
> For certain XPath search queries we get nullpointerexceptions in the
> DescendantSelfAxisScorer#nextDoc method because the 'subScorer' var is null.
> It seems other people have the issue as well:
> http://jackrabbit.510166.n4.nabble.com/JCR-SQL2-query-NullPointerException-in-DescendantSelfAxisQuery-td4657009.html
> It seems a bit arbitrary when it occurs. It seems to occur only when we
> search using certain short search terms. Also it occurs on stem words when we
> configure to use a different Lucene analyzer in Jackrabbit (e.g. the
> DutchAnalyzer and searching on 'een' or 'het').
> We use a custom Jackrabbit indexing-configuration.xml but I even tried
> without using a indexing-configuration and also then the problem occurs.
> Any ideas on what could cause this?
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