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From Harold Harkema <>
Subject NullReferenceException in DrillSideways.Search
Date Tue, 19 Dec 2017 10:03:33 GMT

We have converted our 3.0.3 solution to Lucene 4.8.0-beta00005. Most of it works fine and
a lot better/faster! Thanks for the good work!

However we have an issue with DrillSideways.Search.
Is this a known issue or could it be our code?
Or any suggestions where to look or how to troubleshoot this?

This is part of the stacktrace. The rest of the stacktrace is only our code.

System.NullReferenceException: Object reference not set to an instance of an object.
   at Lucene.Net.Search.ReqExclScorer.GetCost() in C:\BuildAgent\work\b1b63ca15b99dddb\src\Lucene.Net\Search\ReqExclScorer.cs:line
   at Lucene.Net.Facet.DrillSidewaysScorer.Score(ICollector collector, Int32 maxDoc) in C:\BuildAgent\work\b1b63ca15b99dddb\src\Lucene.Net.Facet\DrillSidewaysScorer.cs:line
   at Lucene.Net.Search.IndexSearcher.Search(IList`1 leaves, Weight weight, ICollector collector)
in C:\BuildAgent\work\b1b63ca15b99dddb\src\Lucene.Net\Search\IndexSearcher.cs:line 649
   at Lucene.Net.Facet.DrillSideways.Search(DrillDownQuery query, ICollector hitCollector)
in C:\BuildAgent\work\b1b63ca15b99dddb\src\Lucene.Net.Facet\DrillSideways.cs:line 194
   at Lucene.Net.Facet.DrillSideways.Search(ScoreDoc after, DrillDownQuery query, Int32 topN)
in C:\BuildAgent\work\b1b63ca15b99dddb\src\Lucene.Net.Facet\DrillSideways.cs:line 249


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