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https://issues.apache.org/jira/browse/PDFBOX-4669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17003530#comment-17003530
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Andreas Lehmkühler commented on PDFBOX-4669:
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Looks like the setAnnotation/getAnnotation part is the reason for the same
referenced objects:
- setAnnotation reduces the given annotations to their dictionary -> COSArray
with 4 dictionary objects, the first 3 are the same
- getAnnotations creates new annotations from those dictionaries ->
COSArrayList with 4 objects, the first 3 are all different but using the same
dictionary
At the end you don't get the very same objects back you called the setter with
> Ensure proper functionality of COSArrayList
> -------------------------------------------
>
> Key: PDFBOX-4669
> URL: https://issues.apache.org/jira/browse/PDFBOX-4669
> Project: PDFBox
> Issue Type: Sub-task
> Components: PDModel
> Affects Versions: 2.0.17, 3.0.0 PDFBox
> Reporter: Maruan Sahyoun
> Assignee: Maruan Sahyoun
> Priority: Major
>
> The current COSArrayList implementation has some glitches as pointed out at
> https://stackoverflow.com/questions/45812696/
> In addition when working with {{AnnotationFilter}} as the
> adding/update/removal is index based the wron index of the underlying
> {{COSArray}} is affected.
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