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https://issues.apache.org/jira/browse/LUCENE-1262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12587896#action_12587896
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Michael McCandless commented on LUCENE-1262:
--------------------------------------------
OK indeed I can get the failure to happen, using your Test running against a
partial Wikipedia index I have. I'll pursue! Thanks Trejkaz.
> IndexOutOfBoundsException from FieldsReader after problem reading the index
> ---------------------------------------------------------------------------
>
> Key: LUCENE-1262
> URL: https://issues.apache.org/jira/browse/LUCENE-1262
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Affects Versions: 2.3.1
> Reporter: Trejkaz
> Attachments: Test.java
>
>
> There is a situation where there is an IOException reading from Hits, and
> then the next time you get a NullPointerException instead of an IOException.
> Example stack traces:
> java.io.IOException: The specified network name is no longer available
> at java.io.RandomAccessFile.readBytes(Native Method)
> at java.io.RandomAccessFile.read(RandomAccessFile.java:322)
> at
> org.apache.lucene.store.FSIndexInput.readInternal(FSDirectory.java:536)
> at
> org.apache.lucene.store.BufferedIndexInput.readBytes(BufferedIndexInput.java:74)
> at
> org.apache.lucene.index.CompoundFileReader$CSIndexInput.readInternal(CompoundFileReader.java:220)
> at
> org.apache.lucene.store.BufferedIndexInput.refill(BufferedIndexInput.java:93)
> at
> org.apache.lucene.store.BufferedIndexInput.readByte(BufferedIndexInput.java:34)
> at org.apache.lucene.store.IndexInput.readVInt(IndexInput.java:57)
> at org.apache.lucene.index.FieldsReader.doc(FieldsReader.java:88)
> at
> org.apache.lucene.index.SegmentReader.document(SegmentReader.java:344)
> at org.apache.lucene.index.IndexReader.document(IndexReader.java:368)
> at org.apache.lucene.search.IndexSearcher.doc(IndexSearcher.java:84)
> at org.apache.lucene.search.Hits.doc(Hits.java:104)
> That error is fine. The problem is the next call to doc generates:
> java.lang.NullPointerException
> at
> org.apache.lucene.index.FieldsReader.getIndexType(FieldsReader.java:280)
> at org.apache.lucene.index.FieldsReader.addField(FieldsReader.java:216)
> at org.apache.lucene.index.FieldsReader.doc(FieldsReader.java:101)
> at
> org.apache.lucene.index.SegmentReader.document(SegmentReader.java:344)
> at org.apache.lucene.index.IndexReader.document(IndexReader.java:368)
> at org.apache.lucene.search.IndexSearcher.doc(IndexSearcher.java:84)
> at org.apache.lucene.search.Hits.doc(Hits.java:104)
> Presumably FieldsReader is caching partially-initialised data somewhere. I
> would normally expect the exact same IOException to be thrown for subsequent
> calls to the method.
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