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https://issues.apache.org/jira/browse/LUCENE-5367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13846204#comment-13846204
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Shai Erera commented on LUCENE-5367:
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This is strange, it means that reset() is called twice, which should have
failed every test that we have. Can you post a full testcase which reproduces
the error? In the code example that you posted above you call addFields() and
then taxoWriter.commit(), but not indexWriter.addDocument(). You don't need to
call taxoWriter.commit() after .addFields() and you must call
indexWriter.addDocument(). So, a full testcase will help debug this.
> NoSuchElementException occurs when org.apache.lucene.facet.index.FacetFields
> is used.
> -------------------------------------------------------------------------------------
>
> Key: LUCENE-5367
> URL: https://issues.apache.org/jira/browse/LUCENE-5367
> Project: Lucene - Core
> Issue Type: Bug
> Components: modules/facet
> Affects Versions: 4.2.1, 4.6
> Reporter: Lucien Pereira
>
> Hi,
> When I use the API as below :
> {code}
> 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();
> {code}
> An exception occurs :
> {quote}
> 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)
> {quote}
> 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
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