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https://issues.apache.org/jira/browse/LUCENE-4185?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Muir updated LUCENE-4185:
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Attachment: LUCENE-4185.patch
Thanks for reporting this: you are right, TokenizerChain has a bug where it
wraps the already-wrapped reader.
Here's a patch.
> CharFilters being added twice in Solr
> -------------------------------------
>
> Key: LUCENE-4185
> URL: https://issues.apache.org/jira/browse/LUCENE-4185
> Project: Lucene - Java
> Issue Type: Bug
> Components: modules/analysis
> Affects Versions: 4.0-ALPHA
> Reporter: Michael Froh
> Attachments: LUCENE-4185.patch
>
>
> Debugging one of my test cases, I found that a TokenStream from an Analyzer
> constructed by Solr contains the configured chain of CharFilters twice.
> While I may be mistaken, the fix for LUCENE-4142 appears to make the fix for
> LUCENE-3721 unnecessary, and the combination of the fixes results in the
> repeated application of the CharFilters.
> I came across this with a test case involving an HTMLStripCharFilter, where
> the input string contains "<h1>". After passing through one
> HTMLStripCharFilter, it becomes "<h1>", and then the HTML is removed by the
> second filter.
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