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https://issues.apache.org/jira/browse/LUCENE-1825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12745502#action_12745502
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Tim Smith commented on LUCENE-1825:
-----------------------------------
Looked a little closer on this and it looks like if the root TokenStream does
not addAttribute() for all attributes expected by the indexer, this exception
occurs
I suppose if the Indexer called addAttribute() instead of getAttribute() this
wouldn't happen (attributes not provided by TokenStream, but required by
Indexer would be initialized at index time (and would remain "empty"))
> AttributeSource.getAttribute() should throw better IllegalArgumentException
> ---------------------------------------------------------------------------
>
> Key: LUCENE-1825
> URL: https://issues.apache.org/jira/browse/LUCENE-1825
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Analysis
> Affects Versions: 2.9
> Reporter: Tim Smith
> Priority: Minor
>
> when seting "use only new API" for TokenStream, i received the following
> exception:
> {code}
> [junit] Caused by: java.lang.IllegalArgumentException: This
> AttributeSource does not have the attribute 'interface
> org.apache.lucene.analysis.tokenattributes.TermAttribute'.
> [junit] at
> org.apache.lucene.util.AttributeSource.getAttribute(AttributeSource.java:249)
> [junit] at
> org.apache.lucene.index.TermsHashPerField.start(TermsHashPerField.java:252)
> [junit] at
> org.apache.lucene.index.DocInverterPerField.processFields(DocInverterPerField.java:145)
> [junit] at
> org.apache.lucene.index.DocFieldProcessorPerThread.processDocument(DocFieldProcessorPerThread.java:244)
> [junit] at
> org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:772)
> [junit] at
> org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:755)
> [junit] at
> org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:2613)
> {code}
> However, i can't actually see the culprit that caused this exception
> suggest that the IllegalArgumentException include "getClass().getName()" in
> order to be able to identify which TokenStream implementation actually caused
> this
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