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https://issues.apache.org/jira/browse/PDFBOX-2478?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Tilman Hausherr updated PDFBOX-2478:
------------------------------------
Description:
I get this with the file PDFBOX-2376-087731.pdf:
{code}
java.lang.NullPointerException
PDFBOX-2376-179204-EMC.pdf
at
org.apache.pdfbox.preflight.xobject.XObjImageValidator.checkColorSpaceAndImageMask(XObjImageValidator.java:132)
at
org.apache.pdfbox.preflight.xobject.XObjImageValidator.validate(XObjImageValidator.java:183)
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.process.reflect.SinglePageValidationProcess.validateResources(SinglePageValidationProcess.java:167)
at
org.apache.pdfbox.preflight.process.reflect.SinglePageValidationProcess.validate(SinglePageValidationProcess.java:82)
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.PageTreeValidationProcess.validatePage(PageTreeValidationProcess.java:56)
at
org.apache.pdfbox.preflight.process.PageTreeValidationProcess.validate(PageTreeValidationProcess.java:45)
at
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
at
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:88)
at
org.apache.pdfbox.preflight.PreflightDocument.validate(PreflightDocument.java:168)
at pdfboxpageimageextraction.PreflightTest.main(PreflightTest.java:47)
{code}
The cause is this piece of code:
{code}
Integer bitsPerCompValue = COSUtils.getAsInteger(bitsPerComp,
cosDocument);
if (bitsPerCompValue != 1)
{code}
which fails on this input:
{code}
44 0 obj<</Length 289/Filter/CCITTFaxDecode/DecodeParms<</K -1/Columns 282/Rows
40>>/Width 282/Height 40/ImageMask true/Subtype/Image>>
{code}
That segment is called only for image masks. The spec does not require
BitsPerComponent for image masks, but if it is there, it must be 1. So all I
have to do is to add a null check.
was:
I get this with the file PDFBOX-2376-087731.pdf:
{code}
java.lang.NullPointerException
PDFBOX-2376-179204-EMC.pdf
at
org.apache.pdfbox.preflight.xobject.XObjImageValidator.checkColorSpaceAndImageMask(XObjImageValidator.java:132)
at
org.apache.pdfbox.preflight.xobject.XObjImageValidator.validate(XObjImageValidator.java:183)
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.process.reflect.SinglePageValidationProcess.validateResources(SinglePageValidationProcess.java:167)
at
org.apache.pdfbox.preflight.process.reflect.SinglePageValidationProcess.validate(SinglePageValidationProcess.java:82)
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.PageTreeValidationProcess.validatePage(PageTreeValidationProcess.java:56)
at
org.apache.pdfbox.preflight.process.PageTreeValidationProcess.validate(PageTreeValidationProcess.java:45)
at
org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
at
org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:88)
at
org.apache.pdfbox.preflight.PreflightDocument.validate(PreflightDocument.java:168)
at pdfboxpageimageextraction.PreflightTest.main(PreflightTest.java:47)
{code}
The cause is this piece of code:
{code}
Integer bitsPerCompValue = COSUtils.getAsInteger(bitsPerComp,
cosDocument);
if (bitsPerCompValue != 1)
{code}
which fails on this input:
{code}
44 0 obj<</Length 289/Filter/CCITTFaxDecode/DecodeParms<</K -1/Columns 282/Rows
40>>/Width 282/Height 40/ImageMask true/Subtype/Image>>
{code}
That segment is called only for image masks. The spec does not require
BitsPerComponent for image masks, but if they are there, they must be 1. So all
I have to do is to add a null check.
> NPE in XObjImageValidator.checkColorSpaceAndImageMask
> -----------------------------------------------------
>
> Key: PDFBOX-2478
> URL: https://issues.apache.org/jira/browse/PDFBOX-2478
> Project: PDFBox
> Issue Type: Bug
> Components: Preflight
> Affects Versions: 1.8.7, 1.8.8, 2.0.0
> Reporter: Tilman Hausherr
> Assignee: Tilman Hausherr
> Fix For: 1.8.8, 2.0.0
>
>
> I get this with the file PDFBOX-2376-087731.pdf:
> {code}
> java.lang.NullPointerException
> PDFBOX-2376-179204-EMC.pdf
> at
> org.apache.pdfbox.preflight.xobject.XObjImageValidator.checkColorSpaceAndImageMask(XObjImageValidator.java:132)
> at
> org.apache.pdfbox.preflight.xobject.XObjImageValidator.validate(XObjImageValidator.java:183)
> 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.process.reflect.SinglePageValidationProcess.validateResources(SinglePageValidationProcess.java:167)
> at
> org.apache.pdfbox.preflight.process.reflect.SinglePageValidationProcess.validate(SinglePageValidationProcess.java:82)
> 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.PageTreeValidationProcess.validatePage(PageTreeValidationProcess.java:56)
> at
> org.apache.pdfbox.preflight.process.PageTreeValidationProcess.validate(PageTreeValidationProcess.java:45)
> at
> org.apache.pdfbox.preflight.utils.ContextHelper.callValidation(ContextHelper.java:73)
> at
> org.apache.pdfbox.preflight.utils.ContextHelper.validateElement(ContextHelper.java:88)
> at
> org.apache.pdfbox.preflight.PreflightDocument.validate(PreflightDocument.java:168)
> at pdfboxpageimageextraction.PreflightTest.main(PreflightTest.java:47)
> {code}
> The cause is this piece of code:
> {code}
> Integer bitsPerCompValue = COSUtils.getAsInteger(bitsPerComp,
> cosDocument);
> if (bitsPerCompValue != 1)
> {code}
> which fails on this input:
> {code}
> 44 0 obj<</Length 289/Filter/CCITTFaxDecode/DecodeParms<</K -1/Columns
> 282/Rows 40>>/Width 282/Height 40/ImageMask true/Subtype/Image>>
> {code}
> That segment is called only for image masks. The spec does not require
> BitsPerComponent for image masks, but if it is there, it must be 1. So all I
> have to do is to add a null check.
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