Stephen Hughes created FOP-2716:
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Summary: NPE when linefeed-treatment="preserve" and margins change
Key: FOP-2716
URL: https://issues.apache.org/jira/browse/FOP-2716
Project: FOP
Issue Type: Bug
Affects Versions: 2.2
Reporter: Stephen Hughes
Attachments: error.fo
A NullPointerException occurs 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.
The exception can be reproduced with the attached file, running:
fop.bat error.fo -pdf error.pdf
Output is as follows:
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)
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