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https://issues.apache.org/jira/browse/PDFBOX-3249?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15167555#comment-15167555
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ASF subversion and git services commented on PDFBOX-3249:
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Commit 1732335 from [~tilman] in branch 'pdfbox/trunk'
[ https://svn.apache.org/r1732335 ]
PDFBOX-3249: return null instead of throwing exception, as suggested by David
Lattimore
> PDAnnotationMarkup.getInReplyTo throws exception when no element
> ----------------------------------------------------------------
>
> Key: PDFBOX-3249
> URL: https://issues.apache.org/jira/browse/PDFBOX-3249
> Project: PDFBox
> Issue Type: Bug
> Components: PDModel
> Affects Versions: 2.0.0
> Reporter: Tilman Hausherr
> Assignee: Tilman Hausherr
> Fix For: 2.0.0
>
>
> From David L. from the user the mailing list:
> {quote}
> I'm trying to read annotations from PDFs and am having trouble matching up
> replies with the annotations they're in reply to.
> PDPage.getAnnotations() returns a list of PDAnnotation. When I have
> a PDAnnotationMarkup, I try to call getInReplyTo to get the previous
> annotation in the thread. But I have two problems:
> 1) getInReplyTo() crashes if the annotation isn't a reply. It'd be nice if
> it just returned null. I can work around this by getting the COSDictionary
> and checking for an IRT entry first.
> (... other problem already solved...)
> {quote}
> it is an IOException, this isn't as bad as a nullpointerexception. But it is
> kindof weird indeed, usually we just return null when something doesn't exist.
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