NPE in NearSpansUnordered.isPayloadAvailable()
-----------------------------------------------
Key: LUCENE-1404
URL: https://issues.apache.org/jira/browse/LUCENE-1404
Project: Lucene - Java
Issue Type: Bug
Components: Query/Scoring
Affects Versions: 2.4
Reporter: Tim Smith
Using RC1 of lucene 2.4 resulted in null pointer exception with some
constructed SpanNearQueries
Implementation of isPayloadAvailable() (results in exception)
{code}
public boolean isPayloadAvailable() {
SpansCell pointer = min();
do {
if(pointer.isPayloadAvailable()) {
return true;
}
pointer = pointer.next;
} while(pointer.next != null);
return false;
}
{code}
"Fixed" isPayloadAvailable()
{code}
public boolean isPayloadAvailable() {
SpansCell pointer = min();
while (pointer != null) {
if(pointer.isPayloadAvailable()) {
return true;
}
pointer = pointer.next;
}
return false;
}
{code}
Exception produced:
{code}
[junit] java.lang.NullPointerException
[junit] at
org.apache.lucene.search.spans.NearSpansUnordered$SpansCell.access$300(NearSpansUnordered.java:65)
[junit] at
org.apache.lucene.search.spans.NearSpansUnordered.isPayloadAvailable(NearSpansUnordered.java:235)
[junit] at
org.apache.lucene.search.spans.NearSpansOrdered.shrinkToAfterShortestMatch(NearSpansOrdered.java:246)
[junit] at
org.apache.lucene.search.spans.NearSpansOrdered.advanceAfterOrdered(NearSpansOrdered.java:154)
[junit] at
org.apache.lucene.search.spans.NearSpansOrdered.next(NearSpansOrdered.java:122)
[junit] at
org.apache.lucene.search.spans.SpanScorer.next(SpanScorer.java:54)
[junit] at org.apache.lucene.search.Scorer.score(Scorer.java:57)
[junit] at
org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:137)
[junit] at
org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:113)
[junit] at org.apache.lucene.search.Hits.getMoreDocs(Hits.java:113)
[junit] at org.apache.lucene.search.Hits.<init>(Hits.java:80)
[junit] at org.apache.lucene.search.Searcher.search(Searcher.java:50)
[junit] at org.apache.lucene.search.Searcher.search(Searcher.java:40)
[junit] at
com.attivio.lucene.SpanQueryTest.search(SpanQueryTest.java:79)
[junit] at
com.attivio.lucene.SpanQueryTest.assertHitCount(SpanQueryTest.java:75)
[junit] at com.attivio.lucene.SpanQueryTest.test(SpanQueryTest.java:67)
{code}
will attach unit test that causes exception (and passes with updated
isPayloadAvailable())
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