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From "Erick Erickson (JIRA)" <>
Subject [jira] [Created] (SOLR-9700) NPE in export handler when "fl" parameter is omitted.
Date Sat, 29 Oct 2016 16:06:58 GMT
Erick Erickson created SOLR-9700:

             Summary: NPE in export handler when "fl" parameter is omitted.
                 Key: SOLR-9700
             Project: Solr
          Issue Type: Bug
      Security Level: Public (Default Security Level. Issues are Public)
    Affects Versions: 6x, trunk
            Reporter: Erick Erickson
            Assignee: Erick Erickson
            Priority: Minor
             Fix For: trunk, 6.4

This started when a user reported that if you do not specify any parameters for the export
handler, you get an NPE. I tracked it down to not specifying an "fl" parameter.

But in general I rearranged the error reporting in SortingResponseWriter.write so that immediately
upon detecting a problem, the exception gets written to the output stream and then return
immediately rather than save it up for the end. Preliminary version of the patch attached;
it fixes the immediate problem.

Still to see is if it breaks any tests since the first error detected will be returned to
the user rather than the last. I'll fix any tests that are sensitive to this and check in
sometime this weekend.

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