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Posted to batik-dev@xmlgraphics.apache.org by bu...@apache.org on 2008/12/19 11:26:35 UTC
DO NOT REPLY [Bug 46418] New: NullPointerException in
CSSEngine.getCascadedStyleMap()
https://issues.apache.org/bugzilla/show_bug.cgi?id=46418
Summary: NullPointerException in CSSEngine.getCascadedStyleMap()
Product: Batik
Version: 1.7
Platform: PC
OS/Version: Windows 2000
Status: NEW
Severity: normal
Priority: P2
Component: CSS
AssignedTo: batik-dev@xmlgraphics.apache.org
ReportedBy: mhilpert@gmx.de
It seems that Batik is not thread save. We have several fixed/static SVGs that
we include in XSL-FO and transform via Apache FOP. As long as we create the
reports sequentially, such errors (see below) never occured so far. But when 2
reports are generated concurrently and both have (the same) SVG files included,
a NullPointerException can occur:
---------------------------------------------------------------------------
084942921 SEVERE T61: SVG Errorfile:/C:/Programme/ddf/xml/images/V10271.svg:
The attribute "style" represents an invalid CSS declaration ("fill:#ef7b00;
fill-rule:nonzero; stroke:none; stroke-width:1; stroke-linecap:butt;
stroke-linejoin:miter; stroke-dasharray:none;").
Original message:
java.lang.NullPointerException
org.w3c.dom.DOMException: file:/C:/Programme/ddf/xml/images/V10271.svg:
The attribute "style" represents an invalid CSS declaration ("fill:#ef7b00;
fill-rule:nonzero; stroke:none; stroke-width:1; stroke-linecap:butt;
stroke-linejoin:miter; stroke-dasharray:none;").
Original message:
java.lang.NullPointerException
at org.apache.batik.css.engine.CSSEngine.getCascadedStyleMap(Unknown
Source)
at org.apache.batik.css.engine.CSSEngine.getComputedStyle(Unknown
Source)
at org.apache.batik.bridge.CSSUtilities.getComputedStyle(Unknown
Source)
at org.apache.batik.bridge.CSSUtilities.convertDisplay(Unknown Source)
at org.apache.batik.bridge.GVTBuilder.buildGraphicsNode(Unknown Source)
at org.apache.batik.bridge.GVTBuilder.buildComposite(Unknown Source)
at org.apache.batik.bridge.GVTBuilder.build(Unknown Source)
at
org.apache.fop.render.pdf.PDFSVGHandler.renderSVGDocument(PDFSVGHandler.java:188)
at
org.apache.fop.render.AbstractGenericSVGHandler.handleXML(AbstractGenericSVGHandler.java:57)
at
org.apache.fop.render.AbstractRenderer.renderXML(AbstractRenderer.java:808)
at
org.apache.fop.render.PrintRenderer.renderDocument(PrintRenderer.java:169)
at
org.apache.fop.render.pdf.PDFImageHandlerXML.generateImage(PDFImageHandlerXML.java:55)
at
org.apache.fop.render.pdf.PDFRenderer.putImage(PDFRenderer.java:1745)
at
org.apache.fop.render.pdf.PDFRenderer.renderImage(PDFRenderer.java:1679)
at
org.apache.fop.render.AbstractRenderer.renderViewport(AbstractRenderer.java:743)
at
org.apache.fop.render.AbstractPathOrientedRenderer.renderViewport(AbstractPathOrientedRenderer.java:621)
at
org.apache.fop.render.AbstractRenderer.renderInlineArea(AbstractRenderer.java:626)
at
org.apache.fop.render.pdf.PDFRenderer.renderInlineArea(PDFRenderer.java:1345)
at
org.apache.fop.render.AbstractRenderer.renderLineArea(AbstractRenderer.java:601)
at
org.apache.fop.render.pdf.PDFRenderer.renderLineArea(PDFRenderer.java:1336)
at
org.apache.fop.render.AbstractRenderer.renderBlocks(AbstractRenderer.java:536)
at
org.apache.fop.render.AbstractRenderer.renderBlock(AbstractRenderer.java:573)
at
org.apache.fop.render.pdf.PDFRenderer.renderBlock(PDFRenderer.java:1329)
at
org.apache.fop.render.AbstractRenderer.renderBlocks(AbstractRenderer.java:526)
at
org.apache.fop.render.AbstractRenderer.renderBlock(AbstractRenderer.java:573)
at
org.apache.fop.render.pdf.PDFRenderer.renderBlock(PDFRenderer.java:1329)
at
org.apache.fop.render.AbstractRenderer.renderBlocks(AbstractRenderer.java:526)
at
org.apache.fop.render.AbstractPathOrientedRenderer.renderReferenceArea(AbstractPathOrientedRenderer.java:548)
at
org.apache.fop.render.AbstractRenderer.renderBlock(AbstractRenderer.java:560)
at
org.apache.fop.render.pdf.PDFRenderer.renderBlock(PDFRenderer.java:1329)
at
org.apache.fop.render.AbstractRenderer.renderBlocks(AbstractRenderer.java:526)
at
org.apache.fop.render.AbstractRenderer.renderBlock(AbstractRenderer.java:573)
at
org.apache.fop.render.pdf.PDFRenderer.renderBlock(PDFRenderer.java:1329)
at
org.apache.fop.render.AbstractRenderer.renderBlocks(AbstractRenderer.java:526)
at
org.apache.fop.render.AbstractRenderer.renderRegion(AbstractRenderer.java:322)
at
org.apache.fop.render.AbstractRenderer.renderRegionViewport(AbstractRenderer.java:284)
at
org.apache.fop.render.AbstractRenderer.renderPageAreas(AbstractRenderer.java:247)
at
org.apache.fop.render.AbstractRenderer.renderPage(AbstractRenderer.java:229)
at
org.apache.fop.render.pdf.PDFRenderer.renderPage(PDFRenderer.java:801)
at
org.apache.fop.area.RenderPagesModel.addPage(RenderPagesModel.java:113)
at
org.apache.fop.layoutmgr.AbstractPageSequenceLayoutManager.finishPage(AbstractPageSequenceLayoutManager.java:312)
at
org.apache.fop.layoutmgr.PageSequenceLayoutManager.finishPage(PageSequenceLayoutManager.java:167)
at
org.apache.fop.layoutmgr.PageSequenceLayoutManager.activateLayout(PageSequenceLayoutManager.java:108)
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$MainFOHandler.endElement(FOTreeBuilder.java:340)
at org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:169)
at
org.apache.xalan.transformer.TransformerIdentityImpl.endElement(TransformerIdentityImpl.java:1101)
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown
Source)
at
org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$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 de.ddf.xml.FOP.fo2PDF(Unknown Source)
at java.lang.Thread.run(Unknown Source)
---------------------------------------------------------------------
The result is, that the SVG image on one the report is displayed but with
strange/different colors.
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DO NOT REPLY [Bug 46418] NullPointerException in
CSSEngine.getCascadedStyleMap()
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=46418
--- Comment #2 from M.H. <mh...@gmx.de> 2008-12-19 03:41:25 PST ---
"... if you operate off the same DOM ...". Well, in our case these are 2
separate threads holding their own XML and XSL-FO documents (but referencing
the same fixed SVG (as it is a logo)). So I would answer: no, it's not the same
DOM ...?
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DO NOT REPLY [Bug 46418] NullPointerException in
CSSEngine.getCascadedStyleMap()
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=46418
--- Comment #3 from Jeremias Maerki <je...@apache.org> 2008-12-19 04:34:40 PST ---
(In reply to comment #2)
> "... if you operate off the same DOM ...". Well, in our case these are 2
> separate threads holding their own XML and XSL-FO documents (but referencing
> the same fixed SVG (as it is a logo)). So I would answer: no, it's not the same
> DOM ...?
>
But you do know that FOP has an image cache that reuses images from the same
location for performance reasons? Yes, it's the same DOM if you reference the
same fixed SVG. That's why I asked you to retest with FOP Trunk.
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DO NOT REPLY [Bug 46418] NullPointerException in
CSSEngine.getCascadedStyleMap()
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=46418
Jeremias Maerki <je...@apache.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
--- Comment #1 from Jeremias Maerki <je...@apache.org> 2008-12-19 02:39:59 PST ---
A similar bug has already been discussed (and fixed in FOP Trunk) in #46360
(https://issues.apache.org/bugzilla/show_bug.cgi?id=46360). Yes, Batik is not
thread-safe if you operate off the same DOM and that's what was FOP's problem.
Unless your bug still occurs with FOP Trunk I'm inclined to close this bug here
as "WONTFIX" after Thomas DeWeese explained why we need to clone the DOM in
FOP.
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