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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (JIRA)" <ji...@apache.org> on 2015/08/08 08:17:45 UTC

[jira] [Created] (PDFBOX-2925) EmptyStackException in PDFStreamEngine.getColorSpaces

Tilman Hausherr created PDFBOX-2925:
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             Summary: EmptyStackException in PDFStreamEngine.getColorSpaces
                 Key: PDFBOX-2925
                 URL: https://issues.apache.org/jira/browse/PDFBOX-2925
             Project: PDFBox
          Issue Type: Bug
          Components: Preflight
    Affects Versions: 1.8.10
            Reporter: Tilman Hausherr
            Assignee: Tilman Hausherr
             Fix For: 1.8.11


>From Abel S. in the user mailing list:

I'm testing prawn generated PDFs (https://github.com/prawnpdf/prawn) and I have found that when trying to validate them with PreflightParser, I get an unchecked exception instead of an expected org.apache.pdfbox.preflight.exception.ValidationException.

I attach the PDF (example-manual.pdf) and here is the stacktrace:
{code}
Exception in thread "main" java.util.EmptyStackException
	at java.util.Stack.peek(Stack.java:102)
	at org.apache.pdfbox.util.PDFStreamEngine.getColorSpaces(PDFStreamEngine.java:579)
	at org.apache.pdfbox.util.operator.SetNonStrokingColorSpace.process(SetNonStrokingColorSpace.java:50)
	at org.apache.pdfbox.preflight.content.ContentStreamWrapper.processOperator(ContentStreamWrapper.java:162)
	at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:268)
	at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:244)
	at org.apache.pdfbox.preflight.content.ContentStreamWrapper.validXObjContentStream(ContentStreamWrapper.java:100)
	at org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectContent(XObjFormValidator.java:113)
	at org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:76)
	at org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:77)
	at org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:81)
	at org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:54)
	at org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:191)
	at org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:78)
	at org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:81)
	at org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:54)
	at org.apache.pdfbox.preflight.process.reflect.SinglePageValidationProcess.validateResources(SinglePageValidationProcess.java:163)
	at org.apache.pdfbox.preflight.process.reflect.SinglePageValidationProcess.validate(SinglePageValidationProcess.java:82)
	at org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:81)
	at org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:54)
	at org.apache.pdfbox.preflight.process.PageTreeValidationProcess.validatePage(PageTreeValidationProcess.java:58)
	at org.apache.pdfbox.preflight.process.PageTreeValidationProcess.validate(PageTreeValidationProcess.java:47)
	at org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:81)
	at org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:96)
	at org.apache.pdfbox.preflight.PreflightDocument.validate(PreflightDocument.java:168)
{code}



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