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https://issues.apache.org/jira/browse/SOLR-11231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16243844#comment-16243844
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Timo Hund commented on SOLR-11231:
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Is there anything that i can to to support this? This issue currently prevents
us from using the language detection because we can not quarante that every
field is filled. Even setting default="" on a string field did not help to at
least fill it with an empty string.
> NullPointerException in TikaLanguageIdentifierUpdateProcessor.getExpectedSize
> when performing language identification using unset fields
> ----------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SOLR-11231
> URL: https://issues.apache.org/jira/browse/SOLR-11231
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: contrib - LangId
> Affects Versions: 6.6, 7.0
> Reporter: Chris Beer
> Priority: Minor
>
> If I configure the TikaLanguageIdentifierUpdateProcessorFactory that includes
> a `langid.fl` that isn't set on the document, I get a NPE:
> {{java.lang.NullPointerException
> at
> org.apache.solr.update.processor.TikaLanguageIdentifierUpdateProcessor.getExpectedSize(TikaLanguageIdentifierUpdateProcessor.java:116)
> at
> org.apache.solr.update.processor.TikaLanguageIdentifierUpdateProcessor.concatFields(TikaLanguageIdentifierUpdateProcessor.java:76)
> at
> org.apache.solr.update.processor.TikaLanguageIdentifierUpdateProcessor.detectLanguage(TikaLanguageIdentifierUpdateProcessor.java:53)
> at
> org.apache.solr.update.processor.LanguageIdentifierUpdateProcessor.process(LanguageIdentifierUpdateProcessor.java:219)}}
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