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https://issues.apache.org/jira/browse/PDFBOX-5731?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17803476#comment-17803476
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Axel Howind commented on PDFBOX-5731:
-------------------------------------
[~msahyoun] No, it would not have any benefit. The COSNames behave like value
objects. If we bind them to the PDDocument, we would need more heap if we have
instances with the same name in multiple PDDocument instances. Maybe you think
if we bind them to the PDDocument they could simply be cleared once the
document is GCed. But that's the same that happens now: once GC runs, all
unused instances will be automatically GCed. IMHO such a binding would only
introduce overhead.
> org.apache.pdfbox.cos.COSName#nameMap There is a memory leak problem.
> ---------------------------------------------------------------------
>
> Key: PDFBOX-5731
> URL: https://issues.apache.org/jira/browse/PDFBOX-5731
> Project: PDFBox
> Issue Type: Bug
> Affects Versions: 2.0.30, 3.0.1 PDFBox
> Reporter: liu
> Assignee: Andreas Lehmkühler
> Priority: Major
> Fix For: 4.0.0
>
> Attachments: COSName.java,
> PDFBOX-5731_clear_out_unused_COSName_instances_automatically_PDFBOX2.patch,
> PDFBox5731_clear_out_unused_COSName_instances_automatically_PDFBOX3.patch,
> attempted_fix_for_PDFBOX-5731__clear_out_unused_COSName_instances_automatically.patch,
>
> attempted_fix_for_PDFBOX-5731__clear_out_unused_COSName_instances_automatically_2.patch,
>
> attempted_fix_for_PDFBOX-5731__clear_out_unused_COSName_instances_automatically_using_cleaner.patch,
> image-2023-12-08-16-02-12-293.png, image-2023-12-13-17-04-22-073.png,
> image-2023-12-14-18-10-14-278.png, screenshot-1.png, screenshot-2.png,
> screenshot-3.png, screenshot-4.png, screenshot-5.png, screenshot-6.png,
> screenshot-8.png
>
>
> !image-2023-12-08-16-02-12-293.png!
> !screenshot-1.png!
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