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From "Peter Wolanin (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-1500) Highlighter throws StringIndexOutOfBoundsException
Date Tue, 24 Feb 2009 22:08:01 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1500?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12676426#action_12676426
] 

Peter Wolanin commented on LUCENE-1500:
---------------------------------------

Actually, looking at the Lucene source and the trace:

{code}
java.lang.StringIndexOutOfBoundsException: String index out of range: 2822
	at java.lang.String.substring(String.java:1765)
	at org.apache.lucene.search.highlight.Highlighter.getBestTextFragments(Highlighter.java:274)
	at org.apache.solr.highlight.DefaultSolrHighlighter.doHighlighting(DefaultSolrHighlighter.java:313)
	at org.apache.solr.handler.component.HighlightComponent.process(HighlightComponent.java:84)
	at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:195)
	at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:131)
       ...
{code}

I see now that getBestTextFragments() takes in a token stream - and each token in this steam
already has start/end positions set.  So, this patch would mitigate the exception, but looks
liek the real bug is in Solr.

> 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
>         Attachments: 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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