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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-1500) Highlighter throws StringIndexOutOfBoundsException
Date Mon, 02 Mar 2009 13:39:56 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1500?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12677983#action_12677983
] 

Michael McCandless commented on LUCENE-1500:
--------------------------------------------

bq. What did you think of my suggestion to fix this problem at it's source - i.e. Token should
never be in a state with end<start in the first place?

I'm wary of this, for the same reason as cited above.  I think the
start/end offsets are rather opaque to Lucene, and I would lean
towards asserting as little as possible about them during indexing.

(Not to mention the challenges, as you enumerated, of actually doing
this checking with the current API).

I think at point-of-use (highlighting) we should assert the offsets
are valid, for highlighting.


> Highlighter throws StringIndexOutOfBoundsException
> --------------------------------------------------
>
>                 Key: LUCENE-1500
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1500
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: contrib/highlighter
>    Affects Versions: 2.4
>         Environment: Found this running the example code in Solr (latest version).
>            Reporter: David Bowen
>            Assignee: Michael McCandless
>             Fix For: 2.9
>
>         Attachments: Lucene-1500-NewException.patch, LUCENE-1500.patch, patch.txt
>
>
> Using the canonical Solr example (ant run-example) I added this document (using exampledocs/post.sh):
> <add><doc>
>   <field name="id">Test for Highlighting StringIndexOutOfBoundsExcdption</field>
>   <field name="name">Some Name</field>
>   <field name="manu">Acme, Inc.</field>
>   <field name="features">Description of the features, mentioning various things</field>
>   <field name="features">Features also is multivalued</field>
>   <field name="popularity">6</field>
>   <field name="inStock">true</field>
> </doc></add>
> and then the URL http://localhost:8983/solr/select/?q=features&hl=true&hl.fl=features
caused the exception.
> I have a patch.  I don't know if it is completely correct, but it avoids this exception.

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