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https://issues.apache.org/jira/browse/LUCENE-4479?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Woodward updated LUCENE-4479:
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    Attachment: LUCENE-4479.patch

Patch, fixing javadocs errors.  Ant precommit runs successfully.
                
> TokenSources.getTokenStream() doesn't return correctly for termvectors with 
> positions but no offsets
> ----------------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-4479
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4479
>             Project: Lucene - Core
>          Issue Type: Bug
>          Components: modules/highlighter
>    Affects Versions: 4.0
>            Reporter: Alan Woodward
>            Assignee: Alan Woodward
>            Priority: Minor
>             Fix For: 4.1, 5.0
>
>         Attachments: LUCENE-4479.patch, LUCENE-4479.patch, LUCENE-4479.patch, 
> LUCENE-4479.patch
>
>
> The javadocs for TokenSources.getTokenStream(Terms, boolean) state:
> "Low level api. Returns a token stream or null if no offset info available
> in index. This can be used to feed the highlighter with a pre-parsed token
> stream"
> However, if the Terms instance passed in has positions but no offsets stored, 
> a TokenStream is incorrectly returned, rather than null.
> This has the effect of incorrectly highlighting fields with term vectors and 
> positions, but no offsets.  All highlighting markup is prepended to the 
> beginning of the field.

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