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https://issues.apache.org/jira/browse/LUCENE-1179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12569639#action_12569639
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Otis Gospodnetic commented on LUCENE-1179:
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By the way, why are we allowing empty string field names in the first place?
Is there really a good use case for that? If not, I wonder if we should try
requiring a non-empty string field names in 3.0 and up.
> AssertionError on creating doc containing field with empty string as field
> name
> -------------------------------------------------------------------------------
>
> Key: LUCENE-1179
> URL: https://issues.apache.org/jira/browse/LUCENE-1179
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Affects Versions: 2.3
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Priority: Minor
> Fix For: 2.3.1, 2.4
>
>
> Spinoff from here:
> http://www.gossamer-threads.com/lists/lucene/java-user/58496
> Pre-2.3 you were allowed to add Fields to a Document where the field name is
> the empty string. In 2.3.0 it broke: you hit this during flush:
> {code}
> java.lang.AssertionError
> at org.apache.lucene.index.TermInfosWriter.add(TermInfosWriter.java:143)
> at
> org.apache.lucene.index.DocumentsWriter.appendPostings(DocumentsWriter.java:2290)
> at
> org.apache.lucene.index.DocumentsWriter.writeSegment(DocumentsWriter.java:1985)
> at org.apache.lucene.index.DocumentsWriter.flush(DocumentsWriter.java:539)
> at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:2497)
> at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:2397)
> at
> org.apache.lucene.index.IndexWriter.closeInternal(IndexWriter.java:1204)
> at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:1178)
> at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:1153)
> {code}
> The bug is just an over-aggressive assert statement. I'll commit a fix
> shortly & port to 2.3 branch for 2.3.1 release.
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