[jira] [Created] (FOP-2496) fop2.0 crashes if docbook is last inside a or a . No bug in fop1.1

["Lennart Johansson (JIRA)" <ji...@apache.org>]

Lennart Johansson created FOP-2496:
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             Summary: fop2.0 crashes if docbook <note> is last inside a <listitem> or a <step>. No bug in fop1.1
                 Key: FOP-2496
                 URL: https://issues.apache.org/jira/browse/FOP-2496
             Project: FOP
          Issue Type: Bug
          Components: renderer/pdf
    Affects Versions: 2.0
            Reporter: Lennart Johansson


fop2.0 crashes if docbook <note> is last inside a <listitem> or a <step>. No bug in fop1.1

This works in fop1.1 and it is good docbook syntax and should not be a problem.

A workaround, that also shows the problem, is to insert an empty <para> between </note> and </listitem), or directly in the .fo file, insert an extra <fo:block></fo.block>.
We are now forced to use this workaround in the building scripts - not nice!


Appended:
- note-problem-fop2.0-listitem-crash.fo  = Small example .fo file with a note last in a listitem
- note-problem-fop2.0-listitem-workaround-patched.fo  = Workaround-patched .fo file (listitem)
- note-problem-fop2.0-step-crash.fo  = Small example .fo file with a note last in a step
- note-problem-fop2.0-step-workaround-patched.fo  = Workaround-patched .fo file (step)

The fop CRASH log is below:

INFO: Rendered page #1.
INFO: Rendered page #2.
Jul 8, 2015 8:18:06 PM org.apache.fop.cli.Main startFOP
SEVERE: Exception
java.lang.NullPointerException
        at org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:288)
        at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:115)
        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.list.ListItemLayoutManager.getCombinedKnuthElementsForListItem(ListItemLayoutManager.java:405)
        at org.apache.fop.layoutmgr.list.ListItemLayoutManager.getNextKnuthElements(ListItemLayoutManager.java:326)
        at org.apache.fop.layoutmgr.BlockStackingLayoutManager.getNextKnuthElements(BlockStackingLayoutManager.java:239)
        at org.apache.fop.layoutmgr.BlockStackingLayoutManager.getNextChildElements(BlockStackingLayoutManager.java:498)
        at org.apache.fop.layoutmgr.BlockStackingLayoutManager.getNextKnuthElements(BlockStackingLayoutManager.java:289)
        at org.apache.fop.layoutmgr.list.ListBlockLayoutManager.getNextKnuthElements(ListBlockLayoutManager.java:103)
        at org.apache.fop.layoutmgr.BlockStackingLayoutManager.getNextKnuthElements(BlockStackingLayoutManager.java:239)
        at org.apache.fop.layoutmgr.FlowLayoutManager.getNextChildElements(FlowLayoutManager.java:223)
        at org.apache.fop.layoutmgr.FlowLayoutManager.addChildElements(FlowLayoutManager.java:147)
        at org.apache.fop.layoutmgr.FlowLayoutManager.getNextKnuthElements(FlowLayoutManager.java:116)
        at org.apache.fop.layoutmgr.FlowLayoutManager.getNextKnuthElements(FlowLayoutManager.java:69)
        at org.apache.fop.layoutmgr.PageBreaker.getNextKnuthElements(PageBreaker.java:252)
        at org.apache.fop.layoutmgr.AbstractBreaker.getNextBlockList(AbstractBreaker.java:643)
        at org.apache.fop.layoutmgr.PageBreaker.getNextBlockList(PageBreaker.java:178)
        at org.apache.fop.layoutmgr.PageBreaker.getNextBlockList(PageBreaker.java:158)
        at org.apache.fop.layoutmgr.AbstractBreaker.doLayout(AbstractBreaker.java:384)
        at org.apache.fop.layoutmgr.PageBreaker.doLayout(PageBreaker.java:112)
        at org.apache.fop.layoutmgr.PageSequenceLayoutManager.activateLayout(PageSequenceLayoutManager.java:138)
        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$MainFOHandler.endElement(FOTreeBuilder.java:360)
        at org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:190)
        at org.apache.xalan.transformer.TransformerIdentityImpl.endElement(TransformerIdentityImpl.java:1101)
        at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
        at org.apache.xerces.xinclude.XIncludeHandler.endElement(Unknown Source)
        at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)
        at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$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:484)
        at org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:285)
        ... 3 more



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