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Posted to fop-dev@xmlgraphics.apache.org by "Robert Meyer (JIRA)" <ji...@apache.org> on 2014/02/26 16:51:22 UTC
[jira] [Updated] (FOP-2321) Latest fop snapshot crashes when
processing rindolf-spec.fo
[ https://issues.apache.org/jira/browse/FOP-2321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Robert Meyer updated FOP-2321:
------------------------------
Attachment: patch.diff
After investigating this issue, it stems from the fact that the RTF code cannot handle anything other than a simple-page-master reference. This is due to the limitation of the RTF implementation we have and without adding this feature will unfortunately remain like that. In the case of the original FO specification file, the page-sequence is referencing a page-sequence-master with a repeatable-page-master. The null pointer exception occurs because it tries to read the flow object after looking up and failing to find a simple-page-master with the master-reference provided.
I originally created a patch to warn the user if the flow was null and recommend to changing the FO to using a simple-page-master reference in the page-sequence-master. A side effect of this though was that it bypassed trying to read the flow and continued to create the document successfully without it! As such I've simply removed the warning from the patch to only create the page-master if the flow is not null which seems to work fine. I'll apply this patch shortly.
I've created another issue for the missing feature in RTF to support other page-master types:
https://issues.apache.org/jira/browse/FOP-2350
> Latest fop snapshot crashes when processing rindolf-spec.fo
> -----------------------------------------------------------
>
> Key: FOP-2321
> URL: https://issues.apache.org/jira/browse/FOP-2321
> Project: Fop
> Issue Type: Bug
> Affects Versions: trunk
> Environment: Mageia Linux Cauldron (what will become Mageia Linux 4) x86-64 with java-1.7.0-openjdk-headless-1.7.0.60-2.4.3.2.mga4 .
> Reporter: Shlomi Fish
> Attachments: patch.diff, rindolf-spec.fo.xz
>
>
> When I run this command I get this output (I will attach rindolf-spec.fo soon). I am using /home/shlomif/apps/fop/fop-20131126/fop :
> shlomif[homepage@default]:$trunk$ fop -fo lib/docbook/4/fo/rindolf-spec.fo -rtf lib/docbook/4/rtf/rindolf-spec.rtf
> Nov 27, 2013 10:10:24 AM org.apache.fop.events.LoggingEventListener processEvent
> WARNING: Only simple-page-masters are supported on page-sequences. Using default simple-page-master from page-sequence-master "body". (See position 2:26400)
> Nov 27, 2013 10:10:24 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:288)
> at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:115)
> at org.apache.fop.cli.Main.startFOP(Main.java:177)
> at org.apache.fop.cli.Main.main(Main.java:208)
> Caused by: java.lang.NullPointerException
> at org.apache.fop.render.rtf.RTFHandler.startPageSequence(RTFHandler.java:221)
> at org.apache.fop.fo.pagination.PageSequence.startOfNode(PageSequence.java:121)
> at org.apache.fop.fo.FOTreeBuilder$MainFOHandler.startElement(FOTreeBuilder.java:335)
> at org.apache.fop.fo.FOTreeBuilder.startElement(FOTreeBuilder.java:178)
> at org.apache.xalan.transformer.TransformerIdentityImpl.startElement(TransformerIdentityImpl.java:1072)
> at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
> at org.apache.xerces.xinclude.XIncludeHandler.startElement(Unknown Source)
> at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
> at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$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$JAXPSAXParser.parse(Unknown Source)
> at org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:484)
> at org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:285)
> ... 3 more
> ---------
> java.lang.NullPointerException
> at org.apache.fop.render.rtf.RTFHandler.startPageSequence(RTFHandler.java:221)
> at org.apache.fop.fo.pagination.PageSequence.startOfNode(PageSequence.java:121)
> at org.apache.fop.fo.FOTreeBuilder$MainFOHandler.startElement(FOTreeBuilder.java:335)
> at org.apache.fop.fo.FOTreeBuilder.startElement(FOTreeBuilder.java:178)
> at org.apache.xalan.transformer.TransformerIdentityImpl.startElement(TransformerIdentityImpl.java:1072)
> at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
> at org.apache.xerces.xinclude.XIncludeHandler.startElement(Unknown Source)
> at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(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:177)
> at org.apache.fop.cli.Main.main(Main.java:208)
> shlomif[homepage@default]:$trunk$
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