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https://issues.apache.org/jira/browse/PDFBOX-4664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16947173#comment-16947173
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Maruan Sahyoun commented on PDFBOX-4664:
----------------------------------------
{code}
public class COSArray extends COSBase implements Iterable<COSBase>,
COSUpdateInfo
{code}
And if I'm not mistaken the purpose of {{COSArrayList}} is to provide a list
type interface which is backed by COSArray. The issues do arise because of the
double data keeping in COSArrayList - COSArray and List - but that's not
neccesary. In addition the data store of COSArray is an ArrayList where one
might think that because of the name it's based on Array.
> Iterator.remove() does not work in COSArrayList
> -----------------------------------------------
>
> Key: PDFBOX-4664
> URL: https://issues.apache.org/jira/browse/PDFBOX-4664
> Project: PDFBox
> Issue Type: Bug
> Affects Versions: 2.0.17
> Reporter: Zhichao Yang
> Assignee: Andreas Lehmkühler
> Priority: Minor
>
> {code:java}
> for (Iterator itr = pdfPage.getAnnotations().iterator(); itr.hasNext(); ) {
> itr.remove();
> }
> {code}
> This is not working on annotations list because cosArrayList.iterator() is
> cosArrayList.actual.iterator(), but when convert to a COSArray it uses
> cosArrayList.array, which is not affected by iterator.remove(). A iterator to
> sync the actual and the array would be nice.
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