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https://issues.apache.org/jira/browse/LUCENENET-615?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shad Storhaug resolved LUCENENET-615.
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Fix Version/s: Lucene.Net 4.8.0
Resolution: Fixed
This has now been resolved in Lucene.NET 4.8.0-beta00007
> PerFieldAnalyzerWrapper.GetTokenStream throws NullReferenceException when
> first arg is null. It does not default.
> -----------------------------------------------------------------------------------------------------------------
>
> Key: LUCENENET-615
> URL: https://issues.apache.org/jira/browse/LUCENENET-615
> Project: Lucene.Net
> Issue Type: Bug
> Components: Lucene.Net.Analysis.Common
> Affects Versions: Lucene.Net 4.8.0
> Reporter: Emil Müller
> Priority: Major
> Fix For: Lucene.Net 4.8.0
>
>
> var english = new EnglishAnalyzer(Lucene.Net.Util.LuceneVersion.LUCENE_48);
> var whitespace = new
> WhitespaceAnalyzer(Lucene.Net.Util.LuceneVersion.LUCENE_48);
> var pf = new PerFieldAnalyzerWrapper(english, new Dictionary<string,
> Analyzer>() \{ { "foo", whitespace }});
> var test1 = english.GetTokenStream(null, "test"); // Does not throw
> var test2 = pf.GetTokenStream("", "test"); // works
> var test3 = pf.GetTokenStream(null, "test"); // Throws NullReferenceException
>
> I don't think I'm doing anything wrong, but the last line crashes with the
> abovementioned exception.
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