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https://issues.apache.org/jira/browse/PDFBOX-2500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tilman Hausherr resolved PDFBOX-2500.
-------------------------------------
Resolution: Fixed
> ClassCastException in StreamValidationProcess.checkFilters
> ----------------------------------------------------------
>
> Key: PDFBOX-2500
> URL: https://issues.apache.org/jira/browse/PDFBOX-2500
> Project: PDFBox
> Issue Type: Bug
> Components: Preflight
> Affects Versions: 1.8.7, 1.8.8, 2.0.0
> Reporter: Tilman Hausherr
> Assignee: Tilman Hausherr
> Fix For: 1.8.8, 2.0.0
>
> Attachments: 078083.pdf
>
>
> {code}
> 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)
> {code}
> The cause are entries like this one:
> {code}
> /Filter 778 0 R
> {code}
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