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https://issues.apache.org/jira/browse/NUTCH-2309?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sebastian Nagel updated NUTCH-2309:
-----------------------------------
    Fix Version/s:     (was: 1.16)
                   1.17

> Scoring-Similarity Plugin raises NullPointerException when error occurs in 
> fetching URL
> ---------------------------------------------------------------------------------------
>
>                 Key: NUTCH-2309
>                 URL: https://issues.apache.org/jira/browse/NUTCH-2309
>             Project: Nutch
>          Issue Type: Bug
>          Components: plugin, scoring
>    Affects Versions: 1.12
>            Reporter: Joey Hong
>            Priority: Trivial
>              Labels: easyfix
>             Fix For: 1.17
>
>   Original Estimate: 48h
>  Remaining Estimate: 48h
>
> When the Scoring-Similarity plugin is enabled, a NullPointerException is 
> thrown, cancelling the crawl, when computing the Cosine Similarity for URLs 
> where any kind of error occurred in fetching it. 
> The error occurs in line 77 in CosineSimilarity.java:
> float score = 
> Float.parseFloat(parseData.getContentMeta().get(Nutch.SCORE_KEY));
> This is probably because Nutch.SCORE_KEY is null for such URLs. It can be 
> easily fixed by setting a default value for score.



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