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https://issues.apache.org/jira/browse/PDFBOX-4723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17010622#comment-17010622
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Maruan Sahyoun edited comment on PDFBOX-4723 at 1/8/20 12:08 PM:
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[~mkl] thanks for pointing it out. Now this gets more and more difficult :-)
A "standard" java Map like HashMap is equal if it has the same content. For
SmallMap that's not true. IMHO this is against the users expectation. So I will
look into implementaing equals and hashCode for SmallMap too.
was (Author: msahyoun):
[~mkl] thanks for pointing it out. Now this gets more and more difficult :-)
> Add equals() and hashCode() to PDAnnotation and COS objects
> -----------------------------------------------------------
>
> Key: PDFBOX-4723
> URL: https://issues.apache.org/jira/browse/PDFBOX-4723
> Project: PDFBox
> Issue Type: Sub-task
> Components: PDModel
> Affects Versions: 2.0.18
> Reporter: Maruan Sahyoun
> Assignee: Maruan Sahyoun
> Priority: Major
> Fix For: 2.0.19, 3.0.0 PDFBox
>
>
> In order to proper support removeAll/retainAll for COSArrayList we need to
> detect if entries are in fact duplicates of others. This currently fails as
> even though one might add the same instance of an annotation object multiple
> times to setAnnotations getting the annotations will have individual
> instances. See the discussion at PDFBOX-4669.
> In order to proper support removal we need to be able to detect equality
> where an object is equal if the underlying COSDictionary has the same entries.
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