[jira] [Commented] (SOLR-11555) If the query terms reduce to nothing, filter(clause) produces an NPE whereas fq=clause does not

["Erick Erickson (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-11555?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16221375#comment-16221375 ] 

Erick Erickson commented on SOLR-11555:
---------------------------------------

Fixing it at a lower level would certainly be preferable. I looked briefly at another couple of classes and it seems that the same kind of problem is possible in other places.

bq: how did this null query come to be
Guessing this is a rhetorical question, but answering anyway....

WordDelimiter(Graph)FilterFactory got a single term that was all punctuation and removed them all. I don't know at this point whether an actual null was returned as the token or an empty string and/or if this behavior changed..... The test case exercises the situation though.

> If the query terms reduce to nothing, filter(clause) produces an NPE whereas fq=clause does not
> -----------------------------------------------------------------------------------------------
>
>                 Key: SOLR-11555
>                 URL: https://issues.apache.org/jira/browse/SOLR-11555
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Erick Erickson
>            Assignee: Yonik Seeley
>            Priority: Minor
>         Attachments: SOLR-11555.patch
>
>




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