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https://issues.apache.org/jira/browse/SOLR-18627?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SOLR-18627:
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Labels: pull-request-available (was: )
> ignored fields throw NPE since StrField.createFields() switched to List.of
> --------------------------------------------------------------------------
>
> Key: SOLR-18627
> URL: https://issues.apache.org/jira/browse/SOLR-18627
> Project: Solr
> Issue Type: Bug
> Components: Schema and Analysis
> Affects Versions: 10.1
> Reporter: Li Enlai
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Writing a document that contains an ignored_* field works on Solr 10.0 and
> fails on 10.1. The whole update is rejected with 400, not just the ignored
> field.
> The demo config has dynamicField ignored_* of type ignored (a StrField with
> indexed=false, stored=false, docValues=false):
> {code}
> curl http://localhost:8983/solr/demo/update/json/docs \
> -H 'Content-Type: application/json' \
> -d '{"id":"test","ignored_field":"foobar"}'
> {code}
> Solr 10.0 returns status 0. Solr 10.1 returns status 400. The root cause is a
> NullPointerException while adding the field.
> Reported on users@:
> https://lists.apache.org/thread.html/28pqz7gkvr3tb3mrj7f9npvs8f6slqq5
> FieldType.createField() returns null when the field is neither indexed nor
> stored. DocumentBuilder already skips null fields. StrField.createFields()
> used to return Collections.singletonList(fval), which accepts null. Since
> 10.1 it returns List.of(fval), which does not. List.of throws before the
> field can be dropped, and DocumentBuilder fails the entire document.
> David Smiley confirmed on dev@ that this is not the expected behavior, and
> that a test is missing (subject: "Re: ignored fields throw NPE since Solr
> 10.1").
> The fix is to return an empty list when fval is null.
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