[jira] [Created] (LUCENE-4751) IndexReader close throwing NullPointerException

["Anusha Rao (JIRA)" <ji...@apache.org>]

Anusha Rao created LUCENE-4751:
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             Summary: IndexReader close throwing NullPointerException
                 Key: LUCENE-4751
                 URL: https://issues.apache.org/jira/browse/LUCENE-4751
             Project: Lucene - Core
          Issue Type: Bug
          Components: core/search
    Affects Versions: 2.9.2
         Environment: RedHat
            Reporter: Anusha Rao


Hi,
                Has anyone seen the NullPointerException as shown below before? We have used Lucene to build a public site search functionality.
All the IndexReader objects in there are closed appropriately except one that throws the following error and results in (too many files open) exception.
This brings the entire site down.
The lucene version we are using is lucene-core-2.9.2.jar
 
Any idea what could cause this exception?
 
 
java.lang.NullPointerException
       at org.apache.lucene.index.SegmentReader$Norm.decRef(SegmentReader.java:393)
       at org.apache.lucene.index.SegmentReader.doClose(SegmentReader.java:868)
       at org.apache.lucene.index.IndexReader.decRef(IndexReader.java:170)
       at org.apache.lucene.index.DirectoryReader.doClose(DirectoryReader.java:803)
       at org.apache.lucene.index.IndexReader.decRef(IndexReader.java:170)
       at org.apache.lucene.index.IndexReader.close(IndexReader.java:1302)
       at search.Searcher.search(Searcher.java:387)   // the close in this class does not execute
 


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