[PDFBOX-2940] ClassCastException in FDF export

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.10
• Fix Version/s: 1.8.11
• Component/s: AcroForm
• Assignee: Maruan Sahyoun
• Reporter: Laurent Richard
• Created: 20/Aug/15 15:14
• Updated: 18/Jan/16 12:01
• Resolved: 22/Aug/15 09:56

Description

We have some simple code extracting FDF from a PDF like

PDDocument pdf = PDDocument.load(inputStream);
PDAcroForm form = pdf.getDocumentCatalog().getAcroForm();
FDFDocument fdf = form.exportFDF();

Everything was fine with previous versions of pdfbox (1.8.8 in particular) but version 1.8.10 throws an exception :

java.lang.ClassCastException: org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotationWidget cannot be cast to org.apache.pdfbox.pdmodel.interactive.form.PDField
	at org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm.addFieldAndChildren(PDAcroForm.java:168)
	at org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm.exportFDF(PDAcroForm.java:145)

I join the sample PDF that was used for this test