John Petersam created PDFBOX-5453:
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Summary: 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: 2.0.26, 2.0.24
Reporter: John Petersam
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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