[jira] [Commented] (LUCENE-6001) DrillSideways throws NullPointerException for some searches

["Michael McCandless (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-6001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14339958#comment-14339958 ] 

Michael McCandless commented on LUCENE-6001:
--------------------------------------------

Thanks jane, patch looks great!  You just moved the .cost() calls up before any .nextDoc()s.  I'll commit shortly.

It's nice that we "accidentally" fixed this in trunk ... I think we should also fix this for 4.10.4.

> DrillSideways throws NullPointerException for some searches
> -----------------------------------------------------------
>
>                 Key: LUCENE-6001
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6001
>             Project: Lucene - Core
>          Issue Type: Bug
>          Components: modules/facet
>    Affects Versions: 4.10.1
>            Reporter: Dragan Jotanovic
>         Attachments: LUCENE-6001.patch
>
>
> For some DrillSideways searches I get NullPointerException.
> I have tracked the problem to DrillSidewaysScorer class, on line 126 in DrillSidewaysScorer.java:
> long baseQueryCost = baseScorer.cost();
> On some of my index segments, this call throws NullPoinerException. 
> "baseScorer" is instance of ReqExclScorer. 
> In ReqExclScorer.java:
> public long cost() {
>     return reqScorer.cost();
>  }
> throws NullPointerException because reqScorer is null.



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