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https://issues.apache.org/jira/browse/PDFBOX-4662?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16943023#comment-16943023
]
ASF subversion and git services commented on PDFBOX-4662:
---------------------------------------------------------
Commit 1867893 from Tilman Hausherr in branch 'pdfbox/branches/issue4569'
[ https://svn.apache.org/r1867893 ]
PDFBOX-4662: avoid ClassCastException by using base classes, because of
different BC behaviour 1.62 and 1.63
> ClassCastException: org.bouncycastle.asn1.DLTaggedObject cannot be cast to
> org.bouncycastle.asn1.DERTaggedObject
> ----------------------------------------------------------------------------------------------------------------
>
> Key: PDFBOX-4662
> URL: https://issues.apache.org/jira/browse/PDFBOX-4662
> Project: PDFBox
> Issue Type: Bug
> Components: Crypto
> Affects Versions: 2.0.17
> Reporter: Tilman Hausherr
> Assignee: Tilman Hausherr
> Priority: Major
> Fix For: 2.0.18, 3.0.0 PDFBox
>
> Attachments: QV_RCA1_RCA3_CPCPS_V4_11.pdf
>
>
> I get this with the attached file:
> {noformat}
> Exception in thread "main" java.lang.ClassCastException:
> org.bouncycastle.asn1.DLTaggedObject cannot be cast to
> org.bouncycastle.asn1.DERTaggedObject
> at
> org.apache.pdfbox.examples.signature.cert.CertificateVerifier.extractOCSPURL(CertificateVerifier.java:397)
> at
> org.apache.pdfbox.examples.signature.cert.CertificateVerifier.checkRevocations(CertificateVerifier.java:197)
> at
> org.apache.pdfbox.examples.signature.cert.CertificateVerifier.verifyCertificate(CertificateVerifier.java:151)
> at
> org.apache.pdfbox.examples.signature.ShowSignature.verifyCertificateChain(ShowSignature.java:901)
> {noformat}
> Solution: replace DERTaggedObject with ASN1TaggedObject. The exception is
> related to a change in BC. The latest 2.0 branch doesn't have the problem,
> but it uses 1.60 while the trunk uses 1.63. The error doesn't happen with
> 1.62. The changes doesn't break the 2.0 branch so I'll change it there too,
> to avoid trouble for people who use 1.63 with the code. My impression of
> looking at the source code is that the difference between the two classes is
> in encoding, which we don't use.
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