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https://issues.apache.org/jira/browse/LUCENE-1825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12745472#action_12745472
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Mark Miller commented on LUCENE-1825:
-------------------------------------
Have a proposed patch? Doesn't look easy - I don't think AttributeSource is
necessarily attached to any TokenStream - so you would have to trap it lower
and rework the exception. I don't see the clean path for this myself. Though I
certainly agree with its use.
> 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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