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Posted to dev@lucene.apache.org by "Otis Gospodnetic (JIRA)" <ji...@apache.org> on 2006/10/20 09:09:36 UTC
[jira] Commented: (LUCENE-689) NullPointerException thrown by
equals method in SpanOrQuery
[ http://issues.apache.org/jira/browse/LUCENE-689?page=comments#action_12443726 ]
Otis Gospodnetic commented on LUCENE-689:
-----------------------------------------
Hm, weird. l peeked at SpanOrQuery.java and it looks like the private field instance var should be set in the ctor, using the field from the first clause, no? How come your field is null in the first place?
> NullPointerException thrown by equals method in SpanOrQuery
> -----------------------------------------------------------
>
> Key: LUCENE-689
> URL: http://issues.apache.org/jira/browse/LUCENE-689
> Project: Lucene - Java
> Issue Type: Bug
> Components: Search
> Affects Versions: 2.1
> Environment: Java 1.5.0_09, RHEL 3 Linux, Tomcat 5.0.28
> Reporter: Michael Goddard
>
> Part of our code utilizes the equals method in SpanOrQuery and, in certain cases (details to follow, if necessary), a NullPointerException gets thrown as a result of the String "field" being null. After applying the following patch, the problem disappeared:
> Index: src/java/org/apache/lucene/search/spans/SpanOrQuery.java
> ===================================================================
> --- src/java/org/apache/lucene/search/spans/SpanOrQuery.java (revision 465065)
> +++ src/java/org/apache/lucene/search/spans/SpanOrQuery.java (working copy)
> @@ -121,7 +121,8 @@
> final SpanOrQuery that = (SpanOrQuery) o;
> if (!clauses.equals(that.clauses)) return false;
> - if (!field.equals(that.field)) return false;
> + if (field != null && !field.equals(that.field)) return false;
> + if (field == null && that.field != null) return false;
> return getBoost() == that.getBoost();
> }
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