[LUCENE-5367] NoSuchElementException occurs when org.apache.lucene.facet.index.FacetFields is used.

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 4.2.1, 4.6
• Fix Version/s: 4.7, 6.0
• Component/s: modules/facet
• Lucene Fields: New, Patch Available
• Assignee: Shai Erera
• Reporter: Lucien Pereira
• Created: 12/Dec/13 09:21
• Updated: 09/May/16 18:37
• Resolved: 29/Jan/14 14:54

Description

Hi,

When I use the API as below :

List<CategoryPath> categories = Collections.<CategoryPath>singletonList(new CategoryPath(path.toArray(new String[path.size()])));
FacetFields facetFields = new FacetFields(taxonomyWriter);
facetFields.addFields(document, categories);
taxonomyWriter.commit();

An exception occurs :

java.util.NoSuchElementException
at java.util.Collections$1.next(Collections.java:3302)
at org.apache.lucene.facet.index.DrillDownStream.reset(DrillDownStream.java:78)
at org.apache.lucene.index.DocInverterPerField.processFields(DocInverterPerField.java:97)
at org.apache.lucene.index.DocFieldProcessor.processDocument(DocFieldProcessor.java:248)
at org.apache.lucene.index.DocumentsWriterPerThread.updateDocument(DocumentsWriterPerThread.java:253)
at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:453)
at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1520)
at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1190)
at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1171)

Seems likes this is due to multiple calls to org.apache.lucene.facet.index.DrillDownStream#reset which invoques #next() on an 'used' iterator.

Regards,
Lucien

Issue Links

• Is contained by: LUCENE-5339 Simplify the facet module APIs