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https://issues.apache.org/jira/browse/LUCENE-1263?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12590408#action_12590408
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Michael Busch commented on LUCENE-1263:
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Benjamin,
could you provide more information about how your queries look like and how
they're created?
It looks like the SpanQuery your are trying to execute has a field value of
null.
> NullPointerException in java.util.Hashtable from executing a Query
> ------------------------------------------------------------------
>
> Key: LUCENE-1263
> URL: https://issues.apache.org/jira/browse/LUCENE-1263
> Project: Lucene - Java
> Issue Type: Bug
> Components: Search
> Affects Versions: 2.1
> Reporter: Benjamin Pasero
>
> Lately we are seeing this stacktrace showing up when executing a Query. Any
> ideas?
> java.lang.NullPointerException at java.util.Hashtable.get(Hashtable.java:482)
> at org.apache.lucene.index.MultiReader.norms(MultiReader.java:167)
> at org.apache.lucene.search.spans.SpanWeight.scorer(SpanWeight.java:72)
> at
> org.apache.lucene.search.DisjunctionMaxQuery$DisjunctionMaxWeight.scorer(DisjunctionMaxQuery.java:131)
> at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:130)
> at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:100)
> at org.apache.lucene.search.MultiSearcher.search(MultiSearcher.java:192)
> at org.apache.lucene.search.Hits.getMoreDocs(Hits.java:66)
> at org.apache.lucene.search.Hits.(Hits.java:45)
> at org.apache.lucene.search.Searcher.search(Searcher.java:45)
> at org.apache.lucene.search.Searcher.search(Searcher.java:37)
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