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https://issues.apache.org/jira/browse/LUCENE-819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12476527
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Dan Zivkovic commented on LUCENE-819:
-------------------------------------
The workaround is not practical. It would force me to handle the null case as
an error, when I already have a non-trivial application in production which
considers the null case to be valid. That means going back and revisiting all
sorts of assumptions. On the other hand, the Term class never made any
assumptions about null text fields, explicitly or implicitly. The cat's out of
the bag, so to speak. Therefore, let's just handle the null case gracefully.
In terms of performance, checking for null will not cause performance issues in
any application.
> NullPointerException in Term.compareTo()
> ----------------------------------------
>
> Key: LUCENE-819
> URL: https://issues.apache.org/jira/browse/LUCENE-819
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Environment: JDK 1.4 on MacOS
> Reporter: Dan Zivkovic
> Attachments: lucene-819.patch, lucene-819.patch, TestTerm.java
>
>
> java.lang.NullPointerException
> at org.apache.lucene.index.Term.compareTo(Term.java:84)
> at
> org.apache.lucene.index.TermInfosReader.getIndexOffset(TermInfosReader.java:115)
> at org.apache.lucene.index.TermInfosReader.get(TermInfosReader.java:150)
> at org.apache.lucene.index.SegmentReader.docFreq(SegmentReader.java:300)
> at org.apache.lucene.search.IndexSearcher.docFreq(IndexSearcher.java:78)
> at org.apache.lucene.search.Similarity.idf(Similarity.java:255)
> at
> org.apache.lucene.search.TermQuery$TermWeight.<init>(TermQuery.java:43)
> at org.apache.lucene.search.TermQuery.createWeight(TermQuery.java:142)
> at
> org.apache.lucene.search.BooleanQuery$BooleanWeight.<init>(BooleanQuery.java:203)
> at
> org.apache.lucene.search.BooleanQuery$BooleanWeight2.<init>(BooleanQuery.java:330)
> at
> org.apache.lucene.search.BooleanQuery.createWeight(BooleanQuery.java:372)
> at org.apache.lucene.search.Query.weight(Query.java:93)
> at org.apache.lucene.search.Hits.<init>(Hits.java:48)
> at org.apache.lucene.search.Searcher.search(Searcher.java:53)
> ...
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