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Posted to dev@tika.apache.org by "Tim Allison (JIRA)" <ji...@apache.org> on 2017/08/02 11:10:00 UTC
[jira] [Commented] (TIKA-2439) Avoid NullPointerException in
org.apache.tika.langdetect.OptimaizeLangDetector if models haven't been
loaded
[ https://issues.apache.org/jira/browse/TIKA-2439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16110721#comment-16110721 ]
Tim Allison commented on TIKA-2439:
-----------------------------------
That shouldn't happen. Please do submit a PR. Thank you!
> Avoid NullPointerException in org.apache.tika.langdetect.OptimaizeLangDetector if models haven't been loaded
> ------------------------------------------------------------------------------------------------------------
>
> Key: TIKA-2439
> URL: https://issues.apache.org/jira/browse/TIKA-2439
> Project: Tika
> Issue Type: Improvement
> Components: languageidentifier
> Affects Versions: 1.17
> Reporter: Karl Richter
>
> In an intuitive usage of
> {code:java}
> LanguageDetector languageDetector = LanguageDetector.getDefaultLanguageDetector();
> List<LanguageResult> languageResults = languageDetector.detectAll(someNonEmptyString);
> {code}
> `org.apache.tika.langdetect.OptimaizeLangDetector` might/will (?) be chosen as default detector, but since there's no call to `LanguageDetector.loadModels()` `LanguageDetector.detector` is `null` in `detectAll` which causes an unhelpful error situation which one has to investigate in the code. A simple check whether `detector` is `null` and throwing an `IllegalStateException("models haven't been loaded yet (forgot to call loadModels?")` would be much more intuitive.
> If that corresponds to the expected behaviour (it's my first week with Tika), I can provide a patch or pull request.
> experienced with 1.16-76-gecc59adc9
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