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https://issues.apache.org/jira/browse/LUCENE-1246?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12646400#action_12646400
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Mark Miller commented on LUCENE-1246:
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bq. Could one argue that maybe your queryParser/tokenizer shouldn't create null
queries and add them to BooleanQuery clauses?
I would argue that ; ) But I also would argue that a resilient toString() is a
good idea anyway.
> Missing a null check in BooleanQuery.toString(String)
> -----------------------------------------------------
>
> Key: LUCENE-1246
> URL: https://issues.apache.org/jira/browse/LUCENE-1246
> Project: Lucene - Java
> Issue Type: Bug
> Components: Query/Scoring
> Affects Versions: 2.3.1
> Reporter: John Wang
> Assignee: Otis Gospodnetic
> Priority: Minor
> Attachments: BooleanQueryNPE.txt
>
>
> Our queryParser/tokenizer in some situations creates null query and was added
> as a clause to Boolean query.
> When we try to log the query, NPE is thrown from log(booleanQuery).
> In BooleanQuery.toString(String), a simple null check is overlooked.
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