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From Justin Swanhart <greenl...@gmail.com>
Subject Re: QueryParser: "[stopword] AND something" throws Exception
Date Fri, 12 Nov 2004 17:29:53 GMT
Try using 1.4.2.  The change file says that
ArrayIndexOutOfBoundsExceptions have been fixed in the queryparser.


On Fri, 12 Nov 2004 12:04:31 -0500, Will Allen <wallen@cyveillance.com> wrote:
> Holy cow!  This does happen!
> 
> 
> 
> -----Original Message-----
> From: Peter Pimley [mailto:ppimley@semantico.com]
> Sent: Friday, November 12, 2004 11:52 AM
> To: Lucene Users List
> Subject: QueryParser: "[stopword] AND something" throws Exception
> 
> [this is using lucene-1.4-final]
> 
> Hello.
> 
> I have just encountered a way to get the QueryParser to throw an
> ArrayIndexOutOfBoundsException.  It can be recreated with the demo
> org.apache.lucene.demo.SearchFiles program.  The way to trigger it is to
> parse a query of the form:
> 
> "a AND b"
> 
> ...where 'a' is a stop word.  For example, "the AND vector".  It only
> happens when the -first- term is a stop word.  You could search for
> "vector AND the" or "vector AND the AND class", and it works as you
> would expect (i.e. the stop words are ignored).
> 
> Unfortunately I am up against a deadline right now so I can't fix this
> myself.  I'm just going to filter out stop words before feeding them to
> the query parser.  I'll try to have a look at it in roughly 2 weeks time
> if nobody else has solved it.
> 
> Peter Pimley,
> Semantico
> 
> Here is the stack trace.
> 
> java.lang.ArrayIndexOutOfBoundsException: -1
>         at java.util.Vector.elementAt(Vector.java:434)
>         at
> org.apache.lucene.queryParser.QueryParser.addClause(QueryParser.java:181)
>         at
> org.apache.lucene.queryParser.QueryParser.Query(QueryParser.java:529)
>         at
> org.apache.lucene.queryParser.QueryParser.Clause(QueryParser.java:561)
>         at
> org.apache.lucene.queryParser.QueryParser.Query(QueryParser.java:500)
>         at
> org.apache.lucene.queryParser.QueryParser.Clause(QueryParser.java:561)
>         at
> org.apache.lucene.queryParser.QueryParser.Query(QueryParser.java:500)
>         at
> org.apache.lucene.queryParser.QueryParser.parse(QueryParser.java:108)
>         at
> org.apache.lucene.queryParser.QueryParser.parse(QueryParser.java:87)
> 
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