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https://issues.apache.org/jira/browse/NUTCH-1722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13890171#comment-13890171
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Lewis John McGibbney commented on NUTCH-1722:
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Hi [~someuser77], if we wish to change the behavior then we should open a new
issue and justify as you have done above.
This particular ticket has been logged as a bug, which i think is correct. Your
suggestion is very valid but appears to be an improvement if anything else.
Please feel free to open a new issue and submit a patch for 2.x HEAD if you are
able. Thanks
> FetcherJob#fetch throws NullPointerException for null batchId
> -------------------------------------------------------------
>
> Key: NUTCH-1722
> URL: https://issues.apache.org/jira/browse/NUTCH-1722
> Project: Nutch
> Issue Type: Bug
> Components: fetcher
> Affects Versions: 2.2.1
> Reporter: Gerhard Gossen
> Attachments: NUTCH-1722-2.x.patch
>
>
> The documentation of FetcherJob#fetch claims that a null batchId parameter is
> interpreted as "fetch all generated fetchlists". However, the implementation
> tries to do {{batchId.equals(Nutch.ALL_BATCH_ID_STR)}}, which throws a
> NullPointerException when batchId is null.
> The provided patch sets a null batchId to {{Nutch.ALL_BATCH_ID_STR}}, which
> should be the documented behavior.
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