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https://issues.apache.org/jira/browse/PDFBOX-4117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16375321#comment-16375321
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Tilman Hausherr commented on PDFBOX-4117:
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As expected, Sonar doesn't like it and here's the reason: "While null is
technically a valid Boolean value, that fact, and the distinction between
Boolean and boolean is easy to forget. So returning null from a Boolean method
is likely to cause problems with callers' code."
And yes, a developer who calls {{shouldOpenInNewWindow()}} without looking at
the javadoc would get an NPE soon.
> Implement GoToE action-type
> ---------------------------
>
> Key: PDFBOX-4117
> URL: https://issues.apache.org/jira/browse/PDFBOX-4117
> Project: PDFBox
> Issue Type: New Feature
> Components: AcroForm
> Affects Versions: 1.8.13, 2.0.8
> Reporter: Gilad Denneboom
> Assignee: Tilman Hausherr
> Priority: Major
> Attachments: Sample GoToE Link.pdf
>
>
> One of the major Action Types is not implemented in any version of PDFBox,
> and I believe it should be. I'm referring to "Embedded Go-To Actions"
> (defined under 12.6.4.4 in PDF 32000-1:2008), which allows a link to open an
> attached file. Currently, such "GoToE" actions are interpreted as "null" by
> PDFBox, which is not ideal.
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