You are viewing a plain text version of this content. The canonical link for it is here.
Posted to java-user@lucene.apache.org by Teruhiko Kurosaka <Ku...@basistech.com> on 2008/12/03 19:01:25 UTC
NPE inside org.apache.lucene.index.SegmentReader.getNorms
My application died throwing NPE inside SegmentReader.getNorms().
Exception in thread "main" java.lang.NullPointerException
at java.util.Hashtable.get(Hashtable.java:336)
at org.apache.lucene.index.SegmentReader.getNorms(SegmentReader.java:438)
at org.apache.lucene.index.SegmentReader.norms(SegmentReader.java:450)
at org.apache.lucene.search.spans.SpanWeight.scorer(SpanWeight.java:72)
at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:130)
at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:111)
at org.apache.lucene.search.Searcher.search(Searcher.java:77)
Is there any known Lucene bug that might cause this?
I'm using Lucene 2.1.0.
--------
Basis Technology Corporation, San Francisco
T. "Kuro" Kurosaka
---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-user-help@lucene.apache.org
RE: NPE inside org.apache.lucene.index.SegmentReader.getNorms
Posted by Teruhiko Kurosaka <Ku...@basistech.com>.
> Mark Miller wrote:
>
> > Sounds familiar. This may actually be in JIRA already.
>
> Maybe this is:
>
> https://issues.apache.org/jira/browse/LUCENE-689
>
> ?
>
> I just marked it as fix version 2.9.
>
> Mike
Not exactly.
NPE was from SegmentReader in my case while
NPE is from SpanOrQuery in the case described in LUCENE-689...
I wouldn't worry about it. Nobody shouldn't be giving
a zero-member array to SpanNearQuery constructor for
any useful purposes.
-kuro
---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-user-help@lucene.apache.org
Re: NPE inside org.apache.lucene.index.SegmentReader.getNorms
Posted by Michael McCandless <lu...@mikemccandless.com>.
Mark Miller wrote:
> Sounds familiar. This may actually be in JIRA already.
Maybe this is:
https://issues.apache.org/jira/browse/LUCENE-689
?
I just marked it as fix version 2.9.
Mike
---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-user-help@lucene.apache.org
Re: NPE inside org.apache.lucene.index.SegmentReader.getNorms
Posted by Mark Miller <ma...@gmail.com>.
Sounds familiar. This may actually be in JIRA already.
- Mark
On Dec 3, 2008, at 6:25 PM, "Teruhiko Kurosaka" <Ku...@basistech.com>
wrote:
> Mike,
> You are right. There was an error on my part. I think
> I was, in effect, making a SpanNearQuery object of:
> new SpanNearQuery(new SpanQuery[0], 0, true);
>
>
>> -----Original Message-----
>> From: Michael McCandless [mailto:lucene@mikemccandless.com]
>> Sent: Wednesday, December 03, 2008 10:47 AM
>> To: java-user@lucene.apache.org
>> Subject: Re: NPE inside
>> org.apache.lucene.index.SegmentReader.getNorms
>>
>>
>> Actually I think something "outside" Lucene is probably
>> setting that field.
>>
>> How did you create the Query that you are searching on?
>>
>> Mike
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-user-help@lucene.apache.org
RE: NPE inside org.apache.lucene.index.SegmentReader.getNorms
Posted by Teruhiko Kurosaka <Ku...@basistech.com>.
Mike,
You are right. There was an error on my part. I think
I was, in effect, making a SpanNearQuery object of:
new SpanNearQuery(new SpanQuery[0], 0, true);
> -----Original Message-----
> From: Michael McCandless [mailto:lucene@mikemccandless.com]
> Sent: Wednesday, December 03, 2008 10:47 AM
> To: java-user@lucene.apache.org
> Subject: Re: NPE inside org.apache.lucene.index.SegmentReader.getNorms
>
>
> Actually I think something "outside" Lucene is probably
> setting that field.
>
> How did you create the Query that you are searching on?
>
> Mike
---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-user-help@lucene.apache.org
Re: NPE inside org.apache.lucene.index.SegmentReader.getNorms
Posted by Michael McCandless <lu...@mikemccandless.com>.
Actually I think something "outside" Lucene is probably setting that
field.
How did you create the Query that you are searching on?
Mike
Teruhiko Kurosaka wrote:
> Hello again,
> A debugging session shows that
> SpanWeight.query.field is null when SpanWeight.scorer() is being
> executed.
> API doc says getField() is to "Returns the name of the field matched
> by this query."
> Am I right to assume that this field is set by a search mechanism
> within Lucene,
> not by my code?
>
>> -----Original Message-----
>> From: Teruhiko Kurosaka
>> Sent: Wednesday, December 03, 2008 10:01 AM
>> To: java-user@lucene.apache.org
>> Subject: NPE inside org.apache.lucene.index.SegmentReader.getNorms
>>
>> My application died throwing NPE inside SegmentReader.getNorms().
>>
>> Exception in thread "main" java.lang.NullPointerException
>> at java.util.Hashtable.get(Hashtable.java:336)
>> at
>> org.apache.lucene.index.SegmentReader.getNorms(SegmentReader.java:
>> 438)
>> at
>> org.apache.lucene.index.SegmentReader.norms(SegmentReader.java:450)
>> at
>> org.apache.lucene.search.spans.SpanWeight.scorer(SpanWeight.java:72)
>> at
>> org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:130)
>> at
>> org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:111)
>> at org.apache.lucene.search.Searcher.search(Searcher.java:77)
>>
>> Is there any known Lucene bug that might cause this?
>> I'm using Lucene 2.1.0.
>> --------
>> Basis Technology Corporation, San Francisco T. "Kuro" Kurosaka
>>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-user-help@lucene.apache.org
RE: NPE inside org.apache.lucene.index.SegmentReader.getNorms
Posted by Teruhiko Kurosaka <Ku...@basistech.com>.
Hello again,
A debugging session shows that
SpanWeight.query.field is null when SpanWeight.scorer() is being executed.
API doc says getField() is to "Returns the name of the field matched by this query."
Am I right to assume that this field is set by a search mechanism within Lucene,
not by my code?
> -----Original Message-----
> From: Teruhiko Kurosaka
> Sent: Wednesday, December 03, 2008 10:01 AM
> To: java-user@lucene.apache.org
> Subject: NPE inside org.apache.lucene.index.SegmentReader.getNorms
>
> My application died throwing NPE inside SegmentReader.getNorms().
>
> Exception in thread "main" java.lang.NullPointerException
> at java.util.Hashtable.get(Hashtable.java:336)
> at
> org.apache.lucene.index.SegmentReader.getNorms(SegmentReader.java:438)
> at
> org.apache.lucene.index.SegmentReader.norms(SegmentReader.java:450)
> at
> org.apache.lucene.search.spans.SpanWeight.scorer(SpanWeight.java:72)
> at
> org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:130)
> at
> org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:111)
> at org.apache.lucene.search.Searcher.search(Searcher.java:77)
>
> Is there any known Lucene bug that might cause this?
> I'm using Lucene 2.1.0.
> --------
> Basis Technology Corporation, San Francisco T. "Kuro" Kurosaka
>
---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-user-help@lucene.apache.org