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From "Dan Zivkovic (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-819) NullPointerException in Term.compareTo()
Date Wed, 28 Feb 2007 05:56:05 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12476527
] 

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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