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https://issues.apache.org/jira/browse/FOP-2772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16471466#comment-16471466
 ] 

Radu Coravu commented on FOP-2772:
----------------------------------

Thanks [~ssteiner1]

> NPE where pdf as background image
> ---------------------------------
>
>                 Key: FOP-2772
>                 URL: https://issues.apache.org/jira/browse/FOP-2772
>             Project: FOP
>          Issue Type: Bug
>    Affects Versions: 2.2
>            Reporter: Radu Coravu
>            Assignee: simon steiner
>            Priority: Major
>         Attachments: image.pdf
>
>
> Trying to embed a certain PDF image in an XSL-FO document using Apache FOP 
> and PDF Box:
> {code}[exec] Caused by: java.lang.NullPointerException
>      [exec]     at 
> org.apache.fop.render.pdf.pdfbox.StructureTreeMerger.createKidEntryFromInt(StructureTreeMerger.java:334)
>      [exec]     at 
> org.apache.fop.render.pdf.pdfbox.StructureTreeMerger.setCurrentSessionElemKid(StructureTreeMerger.java:485)
>      [exec]     at 
> org.apache.fop.render.pdf.pdfbox.TaggedPDFConductor.configureCurrentSessionElem(TaggedPDFConductor.java:76)
>      [exec]     at 
> org.apache.fop.render.pdf.pdfbox.TaggedPDFConductor.handleLogicalStructure(TaggedPDFConductor.java:71)
>      [exec]     at 
> org.apache.fop.render.pdf.pdfbox.AbstractPDFBoxHandler.createStreamForPDF(AbstractPDFBoxHandler.java:115)
>      [exec]     at 
> org.apache.fop.render.pdf.pdfbox.PDFBoxImageHandler.handleImage(PDFBoxImageHandler.java:71)
>      [exec]     at 
> org.apache.fop.render.intermediate.AbstractIFPainter.drawImage(AbstractIFPainter.java:249)
>      [exec]     at 
> org.apache.fop.render.intermediate.AbstractIFPainter.drawImage(AbstractIFPainter.java:205)
>      [exec]     at 
> org.apache.fop.render.intermediate.AbstractIFPainter.drawImageUsingImageHandler(AbstractIFPainter.java:170)
>      [exec]     at 
> org.apache.fop.render.pdf.PDFPainter.drawImageUsingURI(PDFPainter.java:218)
>      [exec]     at 
> org.apache.fop.render.pdf.PDFPainter.drawImage(PDFPainter.java:181)
>      [exec]     at 
> org.apache.fop.render.intermediate.IFRenderer.drawImage(IFRenderer.java:1294)
>      [exec]     at 
> org.apache.fop.render.AbstractPathOrientedRenderer.drawImage(AbstractPathOrientedRenderer.java:969)
>      [exec]     at 
> org.apache.fop.render.AbstractPathOrientedRenderer.drawBackground(AbstractPathOrientedRenderer.java:308)
>      [exec]     at 
> org.apache.fop.render.intermediate.IFRenderer.drawBackground(IFRenderer.java:1383)
>      [exec]     at 
> org.apache.fop.render.AbstractPathOrientedRenderer.drawBackground(AbstractPathOrientedRenderer.java:215)
>      [exec]     at 
> org.apache.fop.render.AbstractPathOrientedRenderer.drawBackAndBorders(AbstractPathOrientedRenderer.java:173)
>      [exec]     at 
> org.apache.fop.render.AbstractPathOrientedRenderer.drawBackAndBorders(AbstractPathOrientedRenderer.java:145)
>      [exec]     at 
> org.apache.fop.render.intermediate.IFRenderer.renderBlockViewport(IFRenderer.java:795)
>      [exec]     at 
> org.apache.fop.render.AbstractRenderer.renderBlock(AbstractRenderer.java:593)
>      [exec]     at 
> org.apache.fop.render.intermediate.IFRenderer.renderBlock(IFRenderer.java:998)
>      [exec]     at 
> org.apache.fop.render.AbstractRenderer.renderBlocks(AbstractRenderer.java:557)
>      [exec]     at 
> org.apache.fop.render.AbstractRenderer.renderRegion(AbstractRenderer.java:344)
>      [exec]     at 
> org.apache.fop.render.AbstractRenderer.renderRegionViewport(AbstractRenderer.java:308)
>      [exec]     at 
> org.apache.fop.render.intermediate.IFRenderer.renderRegionViewport(IFRenderer.java:737)
>      [exec]     at 
> org.apache.fop.render.AbstractRenderer.renderPageAreas(AbstractRenderer.java:263)
>      [exec]     at 
> org.apache.fop.render.AbstractRenderer.renderPage(AbstractRenderer.java:244)
>      [exec]     at 
> org.apache.fop.render.intermediate.IFRenderer.renderPage(IFRenderer.java:587)
>      [exec]     at 
> org.apache.fop.area.RenderPagesModel.renderPage(RenderPagesModel.java:193)
>      [exec]     at 
> org.apache.fop.area.RenderPagesModel.checkPreparedPages(RenderPagesModel.java:174)
>      [exec]     at 
> org.apache.fop.area.RenderPagesModel.addPage(RenderPagesModel.java:146)
>      [exec]     at 
> org.apache.fop.layoutmgr.AbstractPageSequenceLayoutManager.finishPage(AbstractPageSequenceLayoutManager.java:316)
>      [exec]     at 
> org.apache.fop.layoutmgr.PageSequenceLayoutManager.finishPage(PageSequenceLayoutManager.java:226)
>      [exec]     at 
> org.apache.fop.layoutmgr.PageSequenceLayoutManager.activateLayout(PageSequenceLayoutManager.java:145)
>      [exec]     at 
> org.apache.fop.area.AreaTreeHandler.endPageSequence(AreaTreeHandler.java:267)
>      [exec]     at 
> org.apache.fop.fo.DelegatingFOEventHandler.endPageSequence(DelegatingFOEventHandler.java:114)
>      [exec]     at 
> org.apache.fop.accessibility.fo.FO2StructureTreeConverter.endPageSequence(FO2StructureTreeConverter.java:148)
>      [exec]     at 
> org.apache.fop.fo.pagination.PageSequence.endOfNode(PageSequence.java:145)
>      [exec]     at 
> org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(FOTreeBuilder.java:360)
>      [exec]     at 
> org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:190)
>      [exec]     at net.sf.saxon.event.ContentHandlerProxy.endElement(Unknown 
> Source)
>      [exec]     at 
> net.sf.saxon.event.NamespaceReducer.endElement(NamespaceReducer.java:228)
>      [exec]     at 
> net.sf.saxon.event.ComplexContentOutputter.endElement(ComplexContentOutputter.java:578)
>      [exec]     at 
> net.sf.saxon.event.ReceivingContentHandler.endElement(ReceivingContentHandler.java:459)
>      [exec]     at 
> org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
>      [exec]     at 
> org.apache.xerces.impl.XMLNSDocumentScannerImplXerces.scanEndElement(Unknown 
> Source)
>      [exec]     at 
> org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)
>      [exec]     at 
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
>  Source)
>      [exec]     at 
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown 
> Source)
>      [exec]     at org.apache.xerces.parsers.XML11Configuration.parse(Unknown 
> Source)
>      [exec]     at org.apache.xerces.parsers.XML11Configuration.parse(Unknown 
> Source)
>      [exec]     at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>      [exec]     at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown 
> Source)
>      [exec]     at 
> org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
>      [exec]     at 
> net.sf.saxon.event.Sender.sendSAXSource(Sender.java:427){code}
> If my client allows me to attach the problem PDF I will.



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