Bug#570095: Patch for fop bug

Mathieu Malaterre mathieu.malaterre at gmail.com
Thu Feb 25 16:25:17 UTC 2010 

On Thu, Feb 25, 2010 at 5:13 PM, Vincent Fourmond <fourmond at gmail.com> wrote:
> Mathieu Malaterre wrote:
>> On Thu, Feb 18, 2010 at 10:38 PM, Vincent Fourmond <fourmond at gmail.com> wrote:
>>>  Mathieu, I've just uploaded a package with a fix to experimental.
>>> Would you mind trying if that works for you, before I upload to unstable
>>> ? (just being my usual paranoid ;-)...)
>>
>> I have tried a couple of things. I just do not understand why I cannot
>> access experimental:
>
>  Don't bother, it has moved on to unstable since (with unrelated
> packaging changes), so with the version you have the bug shouldn't occur
> anymore...
>
>  Please reopen if it still does !

Well technically the bug does not occur anymore...it seg fault a
little later in the code (line 422 instead of line 350). Oh joy :)

For the long story the patch you applied seems to be coming from fop
bug tracker #46386. As stated in the comments, this does not look like
a clean solution (I am just quoting here):

https://issues.apache.org/bugzilla/show_bug.cgi?id=46386#c1

Anyway, I am not sure this is a solution. But given the lack of
response from the fop team (see also my other bug report:
https://issues.apache.org/bugzilla/show_bug.cgi?id=48765), I do not
know what to suggest.

I guess a simple bug forward should be a better solution and suggest
to use the --strnigparam hyphenate 0 as a temp solution...

Anyway here is the current stack now:



SEVERE: Exception
javax.xml.transform.TransformerException: 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)

---------

javax.xml.transform.TransformerException: java.lang.NullPointerException
	at com.icl.saxon.IdentityTransformer.transform(IdentityTransformer.java:61)
	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)
Caused by: java.lang.NullPointerException
	at org.apache.fop.layoutmgr.inline.InlineStackingLayoutManager.getChangedKnuthElements(InlineStackingLayoutManager.java:422)
	at org.apache.fop.layoutmgr.inline.InlineLayoutManager.getChangedKnuthElements(InlineLayoutManager.java:541)
	at org.apache.fop.layoutmgr.inline.InlineStackingLayoutManager.getChangedKnuthElements(InlineStackingLayoutManager.java:414)
	at org.apache.fop.layoutmgr.inline.InlineLayoutManager.getChangedKnuthElements(InlineLayoutManager.java:541)
	at org.apache.fop.layoutmgr.inline.LineLayoutManager.findHyphenationPoints(LineLayoutManager.java:1485)
	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.BlockStackingLayoutManager.getNextKnuthElements(BlockStackingLayoutManager.java:294)
	at org.apache.fop.layoutmgr.list.ListItemLayoutManager.getNextKnuthElements(ListItemLayoutManager.java:234)
	at org.apache.fop.layoutmgr.BlockStackingLayoutManager.getNextKnuthElements(BlockStackingLayoutManager.java:294)
	at org.apache.fop.layoutmgr.list.ListBlockLayoutManager.getNextKnuthElements(ListBlockLayoutManager.java:119)
	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.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$MainFOHandler.endElement(FOTreeBuilder.java:340)
	at org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:169)
	at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
	at org.apache.xerces.xinclude.XIncludeHandler.endElement(Unknown Source)
	at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown
Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$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 com.icl.saxon.IdentityTransformer.transform(IdentityTransformer.java:59)
	... 4 more
---------
java.lang.NullPointerException
	at org.apache.fop.layoutmgr.inline.InlineStackingLayoutManager.getChangedKnuthElements(InlineStackingLayoutManager.java:422)
	at org.apache.fop.layoutmgr.inline.InlineLayoutManager.getChangedKnuthElements(InlineLayoutManager.java:541)
	at org.apache.fop.layoutmgr.inline.InlineStackingLayoutManager.getChangedKnuthElements(InlineStackingLayoutManager.java:414)
	at org.apache.fop.layoutmgr.inline.InlineLayoutManager.getChangedKnuthElements(InlineLayoutManager.java:541)
	at org.apache.fop.layoutmgr.inline.LineLayoutManager.findHyphenationPoints(LineLayoutManager.java:1485)
	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.BlockStackingLayoutManager.getNextKnuthElements(BlockStackingLayoutManager.java:294)
	at org.apache.fop.layoutmgr.list.ListItemLayoutManager.getNextKnuthElements(ListItemLayoutManager.java:234)
	at org.apache.fop.layoutmgr.BlockStackingLayoutManager.getNextKnuthElements(BlockStackingLayoutManager.java:294)
	at org.apache.fop.layoutmgr.list.ListBlockLayoutManager.getNextKnuthElements(ListBlockLayoutManager.java:119)
	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.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.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 com.icl.saxon.IdentityTransformer.transform(IdentityTransformer.java:59)
	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)



-- 
Mathieu

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