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https://issues.apache.org/jira/browse/NUTCH-1722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13889850#comment-13889850
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Daniel Kugel commented on NUTCH-1722:
-------------------------------------
Perhaps a warning should be added to the log in case this behavior was not
expected because fetching the entire webpage table sounds like unwanted
behavior. Actually perhaps a null batchid should fetch nothing and if one
wishes to fetch everything he should specifically pass Nutch.ALL_BATCH_ID_STR?
I think that if null was passed by mistake its something the user would like to
know.
> 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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