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From "George Aroush (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENENET-125) Lucene 2.3.1(a?) - Unhandled System.NullReferenceException In Lucene.Net.Index.DocumentsWriter.CompareText
Date Wed, 16 Jul 2008 23:21:31 GMT

    [ https://issues.apache.org/jira/browse/LUCENENET-125?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12614148#action_12614148
] 

George Aroush commented on LUCENENET-125:
-----------------------------------------

Hi Ken,

DIGY commented that this is the same as LUCENENET-117, can you please veirfy and then comment
/ close this issue?

Thanks.

-- George

> Lucene 2.3.1(a?) - Unhandled System.NullReferenceException  In Lucene.Net.Index.DocumentsWriter.CompareText
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: LUCENENET-125
>                 URL: https://issues.apache.org/jira/browse/LUCENENET-125
>             Project: Lucene.Net
>          Issue Type: Bug
>         Environment: Microsoft Visual Studio 2005, XP Pro
>            Reporter: Ken Katzgrau
>
> When creating a test index of a 1,000,000 documents, I encountered a null reference exception
originating from the document writer approximately every 80,000 documents. The code producing
this error is:
>     class Program
>     {
>         static void Main(string[] args)
>         {
>             IndexWriter iw = new IndexWriter(@"C:\TestIndex", new WhitespaceAnalyzer(),
true);
>             Document d;
>             Field f;
>             for (int i = 0; i < 100000; i++)
>             {
>                 if (i % 10000 == 0) Console.WriteLine("Doc: " + i);
>                 d = new Document();
>                 f = new Field("Field1", "Content " + i, Field.Store.YES, Field.Index.UN_TOKENIZED);
>                 d.Add(f);
>                 f = new Field("Field2", "Content " + i, Field.Store.YES, Field.Index.UN_TOKENIZED);
>                 d.Add(f);
>                 iw.AddDocument(d); *Exception occurs here
>             }
>             Console.WriteLine(iw.DocCount());
>             Console.ReadKey();
>             iw.Close(); *If the exception is caught, the IndexWriter iw becomes null
>         }
>     }
> The exception is:
> System.NullReferenceException was unhandled
>   Message="Object reference not set to an instance of an object."
>   Source="Lucene.Net"
>   StackTrace:
>        at Lucene.Net.Index.DocumentsWriter.CompareText(Char[] text1, Int32 pos1, Char[]
text2, Int32 pos2)
>        at Lucene.Net.Index.DocumentsWriter.AppendPostings(FieldData[] fields, TermInfosWriter
termsOut, IndexOutput freqOut, IndexOutput proxOut)
>        at Lucene.Net.Index.DocumentsWriter.WriteSegment()
>        at Lucene.Net.Index.DocumentsWriter.Flush(Boolean closeDocStore)
>        at Lucene.Net.Index.IndexWriter.DoFlush(Boolean flushDocStores)
>        at Lucene.Net.Index.IndexWriter.Flush(Boolean triggerMerge, Boolean flushDocStores)
>        at Lucene.Net.Index.IndexWriter.AddDocument(Document doc, Analyzer analyzer)
>        at Lucene.Net.Index.IndexWriter.AddDocument(Document doc)
>        -- Line Removed --
>        at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
>        at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity,
String[] args)
>        at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
>        at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
>        at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback
callback, Object state)
>        at System.Threading.ThreadHelper.ThreadStart()

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