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Posted to fop-dev@xmlgraphics.apache.org by "Andreas L. Delmelle (JIRA)" <ji...@apache.org> on 2015/07/11 19:56:04 UTC
[jira] [Commented] (FOP-2461) NullPointerException in
ListItemLayoutManager since Temp_BasicSideFloat Merge
[ https://issues.apache.org/jira/browse/FOP-2461?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14623505#comment-14623505 ]
Andreas L. Delmelle commented on FOP-2461:
------------------------------------------
Lazy workaround committed as a preliminary fix -- see http://svn.apache.org/r1690396
Keeping the issue open for now, as I still feel adding the extra not-null check is not robust enough... At least, if we were to do a point / fix release, this would no longer be a blocker for people to upgrade.
> NullPointerException in ListItemLayoutManager since Temp_BasicSideFloat Merge
> -----------------------------------------------------------------------------
>
> Key: FOP-2461
> URL: https://issues.apache.org/jira/browse/FOP-2461
> Project: FOP
> Issue Type: Bug
> Components: layout/unqualified
> Affects Versions: trunk
> Reporter: Matthias Reischenbacher
> Attachments: fop-2461-test-case.xml
>
>
> The attached fo test cases causes a NullPointerException inside ListItemLayoutManager. This is the stack trace:
> 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.BlockLayoutManager.getNextChildElements(BlockLayoutManager.java:141)
> at org.apache.fop.layoutmgr.BlockStackingLayoutManager.getNextKnuthElements(BlockStackingLayoutManager.java:289)
> at org.apache.fop.layoutmgr.BlockLayoutManager.getNextKnuthElements(BlockLayoutManager.java:113)
> at org.apache.fop.layoutmgr.BlockLayoutManager.getNextKnuthElements(BlockLayoutManager.java:105)
> at org.apache.fop.layoutmgr.table.TableCellLayoutManager.getNextKnuthElements(TableCellLayoutManager.java:191)
> at org.apache.fop.layoutmgr.table.RowGroupLayoutManager.createElementsForRowGroup(RowGroupLayoutManager.java:120)
> at org.apache.fop.layoutmgr.table.RowGroupLayoutManager.getNextKnuthElements(RowGroupLayoutManager.java:63)
> at org.apache.fop.layoutmgr.table.TableContentLayoutManager.getKnuthElementsForRowIterator(TableContentLayoutManager.java:270)
> at org.apache.fop.layoutmgr.table.TableContentLayoutManager.getNextKnuthElements(TableContentLayoutManager.java:212)
> at org.apache.fop.layoutmgr.table.TableLayoutManager.getNextKnuthElements(TableLayoutManager.java:273)
> at org.apache.fop.layoutmgr.FlowLayoutManager.getNextChildElements(FlowLayoutManager.java:223)
> at org.apache.fop.layoutmgr.FlowLayoutManager.addChildElements(FlowLayoutManager.java:148)
> 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:135)
> 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)
> 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)
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