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https://issues.apache.org/jira/browse/FOP-1906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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victoriavargas updated FOP-1906:
--------------------------------
    Attachment: 200-310-Exam-Dumps-NewYear-2019.pdf

> Memory leak / Invalid PageViewports stored in IDTracker
> -------------------------------------------------------
>
>                 Key: FOP-1906
>                 URL: https://issues.apache.org/jira/browse/FOP-1906
>             Project: FOP
>          Issue Type: Bug
>          Components: unqualified
>    Affects Versions: trunk
>         Environment: Operating System: All
> Platform: All
>            Reporter: Martin K
>         Attachments: 
> 0001-Replace-deleted-PageViewports-in-the-ID-Tracker.patch, 
> 200-310-Exam-Dumps-NewYear-2019.pdf
>
>
> PageViewports are added to the IDTracker, while content is put into them.
> The PageProvider discards PageViewports under some conditions 
> (discardCacheStartingWith) - the result is, that the ID Tracker has 
> references to the old PageViewport while the new PageViewport is used for 
> rendering. 
> There is a memory leak, as some content is put on the old PageViewport first, 
> before generating the new PageViewport. The content of the new PageViewport 
> is freed during rendering - the content of the old PageViewport is not freed.



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