[jira] Updated: (NUTCH-756) CrawlDatum.set() does not resets Metadata if it is null

["Julien Nioche (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NUTCH-756?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Julien Nioche updated NUTCH-756:
--------------------------------

    Attachment: NUTCH-756.patch

Fixes issue with metadata not being properly overridden for CrawlDatum when calling the set() method

> CrawlDatum.set() does not resets Metadata if it is null
> -------------------------------------------------------
>
>                 Key: NUTCH-756
>                 URL: https://issues.apache.org/jira/browse/NUTCH-756
>             Project: Nutch
>          Issue Type: Bug
>            Reporter: Julien Nioche
>            Priority: Blocker
>         Attachments: NUTCH-756.patch
>
>
> The patch Nutch-702 implemented the lazy instanciation of CrawlDatum objects, but when using the method set(CrawlDatum) to copy the content of an instance into the current object we did not reset the metadata of the current object if it was null in the instance passed as argument. As a result, the metadata of the current object might be kept from a previous CrawlDatum and won't correspond to the other fields of the instance.
> The patch attached fixes this issue.

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