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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (Jira)" <ji...@apache.org> on 2022/06/07 16:13:00 UTC
[jira] [Comment Edited] (PDFBOX-5453) ClassCastException (PDColor.java:66)
[ https://issues.apache.org/jira/browse/PDFBOX-5453?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17551171#comment-17551171 ]
Tilman Hausherr edited comment on PDFBOX-5453 at 6/7/22 4:12 PM:
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I don't want to support something that is clearly wrong, but a ClassCastException is also a no-no. I've fixed that, please try rendering your PDF again. The result is likely that some color will be black.
Snapshot build here:
https://repository.apache.org/content/groups/snapshots/org/apache/pdfbox/pdfbox-app/2.0.27-SNAPSHOT/
was (Author: tilman):
I don't want to support something that is clearly wrong, but a ClassCastException is also a no-no. I've fixed that, please try rendering your PDF again. The result is likely that some color will be black.
> ClassCastException (PDColor.java:66)
> ------------------------------------
>
> Key: PDFBOX-5453
> URL: https://issues.apache.org/jira/browse/PDFBOX-5453
> Project: PDFBox
> Issue Type: Bug
> Components: PDModel
> Affects Versions: 2.0.24, 2.0.26
> Reporter: John Petersam
> Priority: Major
>
> We are currently running PDFBox 2.0.24 & 2.0.26, but I see the code is identical in the trunk.
> Certain PDFs are throwing the exception shown below in our production system. In these cases, rather than the array containing a list of COSNumbers, it actually contains a single item - another COSArray.
> That COSArray then has an array of COSNumbers. If I insert the following lines of code at line 62 to use the inner COSArray, the PDF renders properly.
> {{ *if ((array.size() == 1) && (array.get(0) instanceof COSArray))*}}
> {{ *array = (COSArray) array.get(0);*}}
>
> Unfortunately, we do not generate the PDFs ourselves and our documents contain sensitive information so I am unable to provide an example.
>
> *Exception:*
> {{java.lang.ClassCastException: class org.apache.pdfbox.cos.COSArray cannot be cast to class org.apache.pdfbox.cos.COSNumber (org.apache.pdfbox.cos.COSArray and org.apache.pdfbox.cos.COSNumber are in unnamed module of loader 'app')}}
> {{at org.apache.pdfbox.pdmodel.graphics.color.PDColor.(PDColor.java:66)}}
> {{at org.apache.pdfbox.pdmodel.interactive.annotation.handlers.PDFreeTextAppearanceHandler.extractNonStrokingColor(PDFreeTextAppearanceHandler.java:424)}}
> {{at org.apache.pdfbox.pdmodel.interactive.annotation.handlers.PDFreeTextAppearanceHandler.generateNormalAppearance(PDFreeTextAppearanceHandler.java:111)}}
> {{at org.apache.pdfbox.pdmodel.interactive.annotation.handlers.PDFreeTextAppearanceHandler.generateAppearanceStreams(PDFreeTextAppearanceHandler.java:75)}}
> {{at org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotationMarkup.constructAppearances(PDAnnotationMarkup.java:897)}}
> {{at org.apache.pdfbox.rendering.PageDrawer.showAnnotation(PageDrawer.java:1521)}}
> {{at org.apache.pdfbox.rendering.PageDrawer.drawPage(PageDrawer.java:281)}}
> {{at org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:347)}}
> {{at org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:268)}}
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