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https://issues.apache.org/jira/browse/NUTCH-2309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15850238#comment-15850238
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Omkar Reddy commented on NUTCH-2309:
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Hi [~jxihong], I tried to reproduce this error but I was unable to do so. Can
you please provide more insights regarding this? Thanks.
> 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: 1.13
>
> 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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