Hi Stephen, XSL-FO with changing IPDs between pages is known to have a few bugs. Please log a bug in JIRA making sure to attach the XSL-FO File that replicates the NPE.
Thanks, Chris On 16/06/2017 01:12, HUGHES Stephen (ATS) wrote: > > Hi all, > > I have encountered a NullPointerException when rendering an fo to pdf > using fop-2.2 on Windows 7 64-bit with JDK 1.8.0_74. I've attached a > simple FO file that reproduces the exception. The command line I'm > running is simply: > > fop.bat error.fo -pdf error.pdf > > Output (with stack trace) is below. > > The exception seems to occur when fop encounters a block with > linefeed-treatment="preserve" and a linefeed occurs at a page boundary > where the left and/or right margins change. In the attached example, > if I remove the block's linefeed-treatment="preserve" attribute, or > set margin-right="20mm" for page_rest (so it's the same as > page_first), the exception does not occur. I’ve also found that > replacing the linefeed between the 3s and 4s with a space prevents the > exception, but the line of 1s is reprinted at the top of the second page. > > Thanks, > > Stephen > > Jun 16, 2017 8:45:33 AM org.apache.fop.cli.Main startFOP > > SEVERE: Exception > > org.apache.fop.apps.FOPException > > java.lang.NullPointerException > > at > org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:296) > > at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:116) > > at org.apache.fop.cli.Main.startFOP(Main.java:186) > > at org.apache.fop.cli.Main.main(Main.java:217) > > Caused by: java.lang.NullPointerException > > at > org.apache.fop.layoutmgr.AbstractBreaker.getRestartAtLM(AbstractBreaker.java:529) > > at > org.apache.fop.layoutmgr.AbstractBreaker.doLayout(AbstractBreaker.java:436) > > at > org.apache.fop.layoutmgr.PageBreaker.doLayout(PageBreaker.java:112) > > at > org.apache.fop.layoutmgr.PageSequenceLayoutManager.activateLayout(PageSequenceLayoutManager.java:141) > > at > org.apache.fop.area.AreaTreeHandler.endPageSequence(AreaTreeHandler.java:267) > > at > org.apache.fop.fo.pagination.PageSequence.endOfNode(PageSequence.java:130) > > at > org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(FOTreeBuilder.java:360) > > at > org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:190) > > at > org.apache.xalan.transformer.TransformerIdentityImpl.endElement(TransformerIdentityImpl.java:1102) > > at > org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source) > > at > org.apache.xerces.xinclude.XIncludeHandler.endElement(Unknown Source) > > at > org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown > Source) > > at > org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown > > Source) > > at > org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown > Source) > > at org.apache.xerces.parsers.XML11Configuration.parse(Unknown > Source) > > at org.apache.xerces.parsers.XML11Configuration.parse(Unknown > Source) > > at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) > > at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown > Source) > > at > org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) > > at > org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:485) > > at > org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:293) > > ... 3 more > > --------- > > java.lang.NullPointerException > > at > org.apache.fop.layoutmgr.AbstractBreaker.getRestartAtLM(AbstractBreaker.java:529) > > at > org.apache.fop.layoutmgr.AbstractBreaker.doLayout(AbstractBreaker.java:436) > > at > org.apache.fop.layoutmgr.PageBreaker.doLayout(PageBreaker.java:112) > > at > org.apache.fop.layoutmgr.PageSequenceLayoutManager.activateLayout(PageSequenceLayoutManager.java:141) > > at > org.apache.fop.area.AreaTreeHandler.endPageSequence(AreaTreeHandler.java:267) > > at > org.apache.fop.fo.pagination.PageSequence.endOfNode(PageSequence.java:130) > > at > org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(FOTreeBuilder.java:360) > > at > org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:190) > > at > org.apache.xalan.transformer.TransformerIdentityImpl.endElement(TransformerIdentityImpl.java:1102) > > at > org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source) > > at > org.apache.xerces.xinclude.XIncludeHandler.endElement(Unknown Source) > > at > org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown > Source) > > at > org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown > > Source) > > at > org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown > Source) > > at org.apache.xerces.parsers.XML11Configuration.parse(Unknown > Source) > > at org.apache.xerces.parsers.XML11Configuration.parse(Unknown > Source) > > at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) > > at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown > Source) > > at > org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) > > at > org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:485) > > at > org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:293) > > at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:116) > > at org.apache.fop.cli.Main.startFOP(Main.java:186) > > at org.apache.fop.cli.Main.main(Main.java:217) > > ------------------------------ > The information in this email together with any attachments is > intended only for the person or entity to which it is addressed and > may contain confidential and/or privileged material. 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