[LUCENE-9524] NullPointerException in IndexSearcher.explain() when using ComplexPhraseQueryParser - ASF JIRA

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Details

Type: Bug
Status: Closed
Priority: Major
Resolution: Fixed
Affects Version/s: 8.6, 8.6.2
Fix Version/s: 8.7
Component/s: core/queryparser, core/search
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Description

I get NPE when I use IndexSearcher.explain(). Checked with Lucene 8.6.0
and 8.6.2.

The query: (lorem AND NOT "dolor lorem") OR ipsum
The text: dolor lorem ipsum

Stack trace:

java.lang.NullPointerException at java.util.Objects.requireNonNull(Objects.java:203)
	at org.apache.lucene.search.LeafSimScorer.<init>(LeafSimScorer.java:38)
	at org.apache.lucene.search.spans.SpanWeight.explain(SpanWeight.java:160)
	at org.apache.lucene.search.BooleanWeight.explain(BooleanWeight.java:87)
	at org.apache.lucene.search.BooleanWeight.explain(BooleanWeight.java:87)
	at org.apache.lucene.search.IndexSearcher.explain(IndexSearcher.java:716)
	at org.apache.lucene.search.IndexSearcher.explain(IndexSearcher.java:693)

Minimal example code:

val analyzer = new StandardAnalyzer();
val query = new ComplexPhraseQueryParser("", analyzer).parse(queryString);

final MemoryIndex memoryIndex = new MemoryIndex(true);
memoryIndex.addField("", text, analyzer);

final IndexSearcher searcher = memoryIndex.createSearcher();
final TopDocs topDocs = searcher.search(query, 1);

final ScoreDoc match = topDocs.scoreDocs[0];

searcher.explain(query, match.doc);

Attachments

Issue Links

links to

GitHub Pull Request #1978

Activity

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Assignee:: Unassigned

Reporter:: Michał Słomkowski

Votes:: 0 Vote for this issue

Watchers:: 6 Start watching this issue

Dates

Created:: 15/Sep/20 11:54

Updated:: 28/Aug/22 16:07

Resolved:: 16/Oct/20 17:23

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1.5h