[jira] [Created] (PDFBOX-2483) StackOverflowError in preflight

[Tilman Hausherr (JIRA)]

Tilman Hausherr created PDFBOX-2483:
---------------------------------------

             Summary: StackOverflowError in preflight
                 Key: PDFBOX-2483
                 URL: https://issues.apache.org/jira/browse/PDFBOX-2483
             Project: PDFBox
          Issue Type: Bug
          Components: Preflight
    Affects Versions: 2.0.0
            Reporter: Tilman Hausherr


I get a stack overflow with the attached file. I can't even get the full trace.
{code}
Exception in thread "main" java.lang.StackOverflowError
        at java.util.regex.Pattern$Single.<init>(Unknown Source)
        at java.util.regex.Pattern.newSingle(Unknown Source)
        at java.util.regex.Pattern.atom(Unknown Source)
        at java.util.regex.Pattern.sequence(Unknown Source)
        at java.util.regex.Pattern.expr(Unknown Source)
        at java.util.regex.Pattern.compile(Unknown Source)
        at java.util.regex.Pattern.<init>(Unknown Source)
        at java.util.regex.Pattern.compile(Unknown Source)
        at java.lang.String.replaceAll(Unknown Source)
        at 
org.apache.pdfbox.pdmodel.font.ExternalFonts.getSubstitutes(ExternalFonts.java:208)
        at 
org.apache.pdfbox.pdmodel.font.ExternalFonts.getTrueTypeFont(ExternalFonts.java:384)
        at 
org.apache.pdfbox.pdmodel.font.PDTrueTypeFont.<init>(PDTrueTypeFont.java:144)
        at 
org.apache.pdfbox.pdmodel.font.PDFontFactory.createFont(PDFontFactory.java:81)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.getFonts(ResourcesValidationProcess.java:127)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateFonts(ResourcesValidationProcess.java:93)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:76)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validateXObjectResources(XObjFormValidator.java:178)
        at 
org.apache.pdfbox.preflight.xobject.XObjFormValidator.validate(XObjFormValidator.java:75)
        at 
org.apache.pdfbox.preflight.process.reflect.GraphicObjectPageValidationProcess.validate(GraphicObjectPageValidationProcess.java:70)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
        at 
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:52)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validateXObjects(ResourcesValidationProcess.java:288)
        at 
org.apache.pdfbox.preflight.process.reflect.ResourcesValidationProcess.validate(ResourcesValidationProcess.java:80)
{code}




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