Bug#570095: java.lang.NullPointerException: at org.apache.fop.layoutmgr.inline.InlineStackingLayoutManager.applyChanges(InlineStackingLayoutManager.java:350)

Mathieu Malaterre mathieu.malaterre at gmail.com
Tue Feb 16 13:21:21 UTC 2010 

Package: fop
Version: 1:0.95.dfsg-7
Severity: important


fop currently segfault on a very simple docbook file:

consider the following test.xml file:

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" []>
<article>
<section>
 <title>title</title>
 <para>
   <anchor id="myidx" xreflabel="mylabel"/>
   </para>
</section>
</article>

Now run:

$ xsltproc --stringparam fop1.extensions 1 --stringparam ulink.show 0
--xinclude -o out.fo
/usr/share/xml/docbook/stylesheet/nwalsh/fo/docbook.xsl ./test.xml

$ fop -fo out.fo -pdf out.pdf

You should get:


[warning] /usr/bin/fop: Unable to locate xml-apis in /usr/share/java
Feb 16, 2010 2:17:27 PM org.apache.fop.fonts.FontInfo notifyFontReplacement
WARNING: Font 'Symbol,normal,700' not found. Substituting with 'Symbol,normal,400'.
Feb 16, 2010 2:17:27 PM org.apache.fop.fonts.FontInfo notifyFontReplacement
WARNING: Font 'ZapfDingbats,normal,700' not found. Substituting with 'ZapfDingbats,normal,400'.
Feb 16, 2010 2:17:27 PM org.apache.fop.cli.Main startFOP
SEVERE: Exception
java.lang.NullPointerException
	at org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:217)
	at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:125)
	at org.apache.fop.cli.Main.startFOP(Main.java:166)
	at org.apache.fop.cli.Main.main(Main.java:197)

---------

java.lang.NullPointerException
	at org.apache.fop.layoutmgr.inline.InlineStackingLayoutManager.applyChanges(InlineStackingLayoutManager.java:350)
	at org.apache.fop.layoutmgr.inline.LineLayoutManager.findHyphenationPoints(LineLayoutManager.java:1480)
	at org.apache.fop.layoutmgr.inline.LineLayoutManager.findOptimalBreakingPoints(LineLayoutManager.java:950)
	at org.apache.fop.layoutmgr.inline.LineLayoutManager.createLineBreaks(LineLayoutManager.java:917)
	at org.apache.fop.layoutmgr.inline.LineLayoutManager.getNextKnuthElements(LineLayoutManager.java:607)
	at org.apache.fop.layoutmgr.BlockStackingLayoutManager.getNextKnuthElements(BlockStackingLayoutManager.java:294)
	at org.apache.fop.layoutmgr.BlockLayoutManager.getNextKnuthElements(BlockLayoutManager.java:116)
	at org.apache.fop.layoutmgr.BlockStackingLayoutManager.getNextKnuthElements(BlockStackingLayoutManager.java:294)
	at org.apache.fop.layoutmgr.BlockLayoutManager.getNextKnuthElements(BlockLayoutManager.java:116)
	at org.apache.fop.layoutmgr.FlowLayoutManager.getNextKnuthElements(FlowLayoutManager.java:107)
	at org.apache.fop.layoutmgr.PageBreaker.getNextKnuthElements(PageBreaker.java:145)
	at org.apache.fop.layoutmgr.AbstractBreaker.getNextBlockList(AbstractBreaker.java:552)
	at org.apache.fop.layoutmgr.PageBreaker.getNextBlockList(PageBreaker.java:137)
	at org.apache.fop.layoutmgr.AbstractBreaker.doLayout(AbstractBreaker.java:302)
	at org.apache.fop.layoutmgr.AbstractBreaker.doLayout(AbstractBreaker.java:264)
	at org.apache.fop.layoutmgr.PageSequenceLayoutManager.activateLayout(PageSequenceLayoutManager.java:106)
	at org.apache.fop.area.AreaTreeHandler.endPageSequence(AreaTreeHandler.java:234)
	at org.apache.fop.fo.pagination.PageSequence.endOfNode(PageSequence.java:123)
	at org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(FOTreeBuilder.java:340)
	at org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:169)
	at org.apache.xalan.transformer.TransformerIdentityImpl.endElement(TransformerIdentityImpl.java:1102)
	at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
	at org.apache.xerces.xinclude.XIncludeHandler.endElement(Unknown Source)
	at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$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:214)
	at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:125)
	at org.apache.fop.cli.Main.startFOP(Main.java:166)
	at org.apache.fop.cli.Main.main(Main.java:197)


Thanks

-- System Information:
Debian Release: 5.0.4
  APT prefers stable
  APT policy: (500, 'stable'), (200, 'testing'), (100, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.30-bpo.1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages fop depends on:
ii  default-jre [java2-runti 1.5-30          Standard Java or Java compatible R
ii  default-jre-headless     1.5-30          Standard Java or Java compatible R
ii  gcj-4.4-jre [java2-runti 4.4.2-4         Java runtime environment using GIJ
ii  gcj-jre [java2-runtime]  4:4.3.4-1       Java runtime environment using GIJ
ii  java-gcj-compat [java2-r 1.0.80-5.1      Java runtime environment using GIJ
ii  java-wrappers            0.1.15          wrappers for java executables
ii  libavalon-framework-java 4.2.0-4         Common framework for Java server a
ii  libbatik-java            1.7-5           xml.apache.org SVG Library
ii  libbsf-java              1:2.4.0-2       Bean Scripting Framework to suppor
ii  libcommons-io-java       1.4-1           Common useful IO related classes
ii  libcommons-logging-java  1.1.1-6         commmon wrapper interface for seve
ii  libxalan2-java           2.7.1-5         XSL Transformations (XSLT) process
ii  libxerces2-java          2.9.1-2+lenny1  Validating XML parser for Java wit
ii  libxml-commons-external- 1.3.05-1        XML Commons external code - DOM, S
ii  libxmlgraphics-commons-j 1.3.1.dfsg-4    reusable components used by Batik 
ii  libxp6                   1:1.0.0.xsf1-2  X Printing Extension (Xprint) clie
ii  libxt6                   1:1.0.5-3       X11 toolkit intrinsics library
ii  libxtst6                 2:1.0.3-1       X11 Testing -- Resource extension 
ii  openjdk-6-jre [java2-run 6b11-9.1+lenny2 OpenJDK Java runtime, using Hotspo
ii  sun-java5-jre [java2-run 1.5.0-17-0.1    Sun Java(TM) Runtime Environment (
ii  sun-java6-jre [java2-run 6-12-1          Sun Java(TM) Runtime Environment (

Versions of packages fop recommends:
ii  libsaxon-java                 1:6.5.5-5  The Saxon XSLT Processor

Versions of packages fop suggests:
ii  fop-doc                    1:0.95.dfsg-7 Documentation for fop
ii  libservlet2.4-java         5.0.30-8      Servlet 2.4 and JSP 2.0 Java class

-- no debconf information

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