[PDFBOX-4030] ClassCastException when matrix array has indirect objects

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.13, 2.0.8
• Fix Version/s: 1.8.14, 2.0.9, 3.0.0 PDFBox
• Component/s: PDModel
• Assignee: Tilman Hausherr
• Reporter: Tilman Hausherr
• Created: 07/Dec/17 15:56
• Updated: 24/Mar/18 09:41
• Resolved: 07/Dec/17 16:08

Description

ClassCastException: org.apache.pdfbox.cos.COSObject cannot be cast to org.apache.pdfbox.cos.COSNumber
    org.apache.pdfbox.util.Matrix.<init>(Matrix.java:60)
    org.apache.pdfbox.pdmodel.graphics.pattern.PDAbstractPattern.getMatrix(PDAbstractPattern.java:135)

Solution: replace get() with getObject(). I created the attached file by modifying COSWriter.