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Posted to fop-dev@xmlgraphics.apache.org by bu...@apache.org on 2006/05/12 16:45:59 UTC
DO NOT REPLY [Bug 39571] New: - NullPointerException in InlineStackingLayoutManager.java:295
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Summary: NullPointerException in
InlineStackingLayoutManager.java:295
Product: Fop
Version: 1.0dev
Platform: Macintosh
OS/Version: Mac OS X 10.4
Status: NEW
Severity: normal
Priority: P2
Component: page-master/layout
AssignedTo: fop-dev@xmlgraphics.apache.org
ReportedBy: max@berger.name
When trying to format the attached .fo file, I get the following exception:
java.lang.NullPointerException
at org.apache.fop.layoutmgr.inline.InlineStackingLayoutManager.addALetterSpaceTo
(InlineStackingLayoutManager.java:295)
at org.apache.fop.layoutmgr.InlineKnuthSequence.addALetterSpace(InlineKnuthSequence.java:140)
at org.apache.fop.layoutmgr.inline.LineLayoutManager.collectInlineKnuthElements
(LineLayoutManager.java:679)
at org.apache.fop.layoutmgr.inline.LineLayoutManager.getNextKnuthElements
(LineLayoutManager.java:582)
at org.apache.fop.layoutmgr.BlockStackingLayoutManager.getNextKnuthElements
(BlockStackingLayoutManager.java:275)
at org.apache.fop.layoutmgr.BlockLayoutManager.getNextKnuthElements
(BlockLayoutManager.java:105)
at org.apache.fop.layoutmgr.BlockStackingLayoutManager.getNextKnuthElements
(BlockStackingLayoutManager.java:275)
at org.apache.fop.layoutmgr.BlockLayoutManager.getNextKnuthElements
(BlockLayoutManager.java:105)
at org.apache.fop.layoutmgr.BlockStackingLayoutManager.getNextKnuthElements
(BlockStackingLayoutManager.java:275)
at org.apache.fop.layoutmgr.BlockLayoutManager.getNextKnuthElements
(BlockLayoutManager.java:105)
at org.apache.fop.layoutmgr.FlowLayoutManager.getNextKnuthElements(FlowLayoutManager.java:
98)
at org.apache.fop.layoutmgr.PageSequenceLayoutManager$PageBreaker.getNextKnuthElements
(PageSequenceLayoutManager.java:240)
at org.apache.fop.layoutmgr.AbstractBreaker.getNextBlockList(AbstractBreaker.java:510)
at org.apache.fop.layoutmgr.PageSequenceLayoutManager$PageBreaker.getNextBlockList
(PageSequenceLayoutManager.java:232)
at org.apache.fop.layoutmgr.AbstractBreaker.doLayout(AbstractBreaker.java:259)
at org.apache.fop.layoutmgr.AbstractBreaker.doLayout(AbstractBreaker.java:227)
at org.apache.fop.layoutmgr.PageSequenceLayoutManager.activateLayout
(PageSequenceLayoutManager.java:153)
at org.apache.fop.area.AreaTreeHandler.endPageSequence(AreaTreeHandler.java:381)
at org.apache.fop.fo.pagination.PageSequence.endOfNode(PageSequence.java:147)
at org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(FOTreeBuilder.java:358)
at org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:193)
at org.apache.xalan.transformer.TransformerIdentityImpl.endElement
(TransformerIdentityImpl.java:1101)
at org.apache.xerces.parsers.AbstractSAXParser.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.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:
484)
at org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:164)
at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:114)
at org.apache.fop.cli.Main.startFOP(Main.java:159)
at org.apache.fop.cli.Main.main(Main.java:190)
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DO NOT REPLY [Bug 39571] - NullPointerException in InlineStackingLayoutManager.java:295
Posted by bu...@apache.org.
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------- Additional Comments From spepping@apache.org 2006-05-17 20:05 -------
Created an attachment (id=18308)
--> (http://issues.apache.org/bugzilla/attachment.cgi?id=18308&action=view)
A minimal fo file for the problem
The NPE is caused by FOP's efforts to add a letter space to a box for padding.
It is triggered by the combination of NBSPACE, padding and an immediately
following inline level fo element.
I am still studying the best way to prevent this bug. Checking whether the box
is an InlineBox, like you do in your patch, is a good option.
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DO NOT REPLY [Bug 39571] - NullPointerException in InlineStackingLayoutManager.java:295
Posted by bu...@apache.org.
DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG�
RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
<http://issues.apache.org/bugzilla/show_bug.cgi?id=39571>.
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spepping@apache.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
------- Additional Comments From spepping@apache.org 2006-05-19 15:15 -------
Patch applied, with a few modifications, in revision 407819. Thanks.
This patch is certainly not a definitive solution, rather it is an emergeny
patch. The problem is part of the range of problems with inline handling,
signalled earlier this year by Manuel Mall.
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DO NOT REPLY [Bug 39571] - NullPointerException in InlineStackingLayoutManager.java:295
Posted by bu...@apache.org.
DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG�
RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
<http://issues.apache.org/bugzilla/show_bug.cgi?id=39571>.
ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND�
INSERTED IN THE BUG DATABASE.
http://issues.apache.org/bugzilla/show_bug.cgi?id=39571
------- Additional Comments From max@berger.name 2006-05-12 14:49 -------
Created an attachment (id=18265)
--> (http://issues.apache.org/bugzilla/attachment.cgi?id=18265&action=view)
Patch file for the bug presented
I've written a small fix that fixes the symptoms. This is probably a very bad
idea, someone that actually knows why this error is occuring should fix this.
However, the attached patch "works for me"
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DO NOT REPLY [Bug 39571] - NullPointerException in InlineStackingLayoutManager.java:295
Posted by bu...@apache.org.
DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG�
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<http://issues.apache.org/bugzilla/show_bug.cgi?id=39571>.
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http://issues.apache.org/bugzilla/show_bug.cgi?id=39571
------- Additional Comments From max@berger.name 2006-05-12 14:47 -------
Created an attachment (id=18264)
--> (http://issues.apache.org/bugzilla/attachment.cgi?id=18264&action=view)
sample fo file
forgot to mention my fop version: svn checkout from today (5/12)
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