[ https://issues.apache.org/jira/browse/LUCENENET-615?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Emil Müller updated LUCENENET-615:
----------------------------------
    Description: 
var english = new EnglishAnalyzer(Lucene.Net.Util.LuceneVersion.LUCENE_48);

var whitespace = new WhitespaceAnalyzer(Lucene.Net.Util.LuceneVersion.LUCENE_48);

var pf = new PerFieldAnalyzerWrapper(_englishAnalyzer, new Dictionary<string, Analyzer>() \{{ "foo", whitespaceAnalyzer }});}}

var test1 = english.GetTokenStream(null, question); // Does not throw

var test2 = pf.GetTokenStream(null, question); // Throws NullReferenceException

 

I don't think I'm doing anything wrong, but the last line crashes with the abovementioned exception.

 

(Tried preformatting the above text, but Jira removes newlines. Sorry for that.)

  was:
var english = new EnglishAnalyzer(Lucene.Net.Util.LuceneVersion.LUCENE_48);

var whitespace = new WhitespaceAnalyzer(Lucene.Net.Util.LuceneVersion.LUCENE_48);{{var pf = new PerFieldAnalyzerWrapper(_englishAnalyzer, new Dictionary<string, Analyzer>() {

{ "foo", whitespaceAnalyzer }

});}}

var test1 = english.GetTokenStream(null, question); // Does not throw

var test2 = pf.GetTokenStream(null, question); // Throws NullReferenceException

 

I don't think I'm doing anything wrong, but the last line crashes with the abovementioned exception.

 

(Tried preformatting the above text, but Jira removes newlines. Sorry for that.)


> PerFieldAnalyzerWrapper.GetTokenStream throws NullReferenceException
> --------------------------------------------------------------------
>
>                 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
>
> var english = new EnglishAnalyzer(Lucene.Net.Util.LuceneVersion.LUCENE_48);
> var whitespace = new WhitespaceAnalyzer(Lucene.Net.Util.LuceneVersion.LUCENE_48);
> var pf = new PerFieldAnalyzerWrapper(_englishAnalyzer, new Dictionary<string, Analyzer>() \{{ "foo", whitespaceAnalyzer }});}}
> var test1 = english.GetTokenStream(null, question); // Does not throw
> var test2 = pf.GetTokenStream(null, question); // Throws NullReferenceException
>  
> I don't think I'm doing anything wrong, but the last line crashes with the abovementioned exception.
>  
> (Tried preformatting the above text, but Jira removes newlines. Sorry for that.)



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