NPE in SpanNear when used as exclusion for SpanNot
--------------------------------------------------
Key: LUCENE-560
URL: http://issues.apache.org/jira/browse/LUCENE-560
Project: Lucene - Java
Type: Bug
Components: Search
Reporter: Hoss Man
Attachments: LUCENE-560-test.patch
It seems that if you try to use a SpanNear query as the "exclude" argument to a SpanNot query,
you encounter an NPE. The stack trace looks like the following (as of trunk r398639) ...
[junit] java.lang.NullPointerException
[junit] at org.apache.lucene.search.spans.NearSpans.doc(NearSpans.java:227)
[junit] at org.apache.lucene.search.spans.SpanNotQuery$1.next(SpanNotQuery.java:85)
[junit] at org.apache.lucene.search.spans.SpanScorer.next(SpanScorer.java:51)
[junit] at org.apache.lucene.search.Scorer.score(Scorer.java:47)
[junit] at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:132)
patch to TestBasics demonstrating bug will be attached shortly. I believe the problem is
that SpanNotQuery$1 is calling "excludeSpans.doc()" without ever calling "excludeSpans.next()"
... this "works" when the exclude query is a TermQuery becuase the value returned by doc()
is -1 ... but with SpanNearQuery tries to pop the initial value off of a queue which hasn't
been initialized yet.
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see:
http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: java-dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-dev-help@lucene.apache.org
|