[PDFBOX-2500] ClassCastException in StreamValidationProcess.checkFilters

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.7, 1.8.8, 2.0.0
• Fix Version/s: 1.8.8, 2.0.0
• Component/s: Preflight
• Assignee: Tilman Hausherr
• Reporter: Tilman Hausherr
• Created: 15/Nov/14 13:59
• Updated: 13/Dec/14 14:14
• Resolved: 15/Nov/14 14:57

Description

078083.pdf preflight fail: java.lang.ClassCastException: org.apache.pdfbox.cos.COSObject cannot be cast to org.apache.pdfbox.cos.COSArray
	at org.apache.pdfbox.preflight.process.StreamValidationProcess.checkFilters(StreamValidationProcess.java:101)
	at org.apache.pdfbox.preflight.process.StreamValidationProcess.validateStreamObject(StreamValidationProcess.java:83)
	at org.apache.pdfbox.preflight.process.StreamValidationProcess.validate(StreamValidationProcess.java:67)
	at org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
	at org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:88)
	at org.apache.pdfbox.preflight.PreflightDocument.validate(PreflightDocument.java:168)
	at pdfboxpageimageextraction.PreflightTest.main(PreflightTest.java:44)

The cause are entries like this one:

/Filter 778 0 R