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From Olivier Billard <obill...@rennes.jouve.fr>
Subject [Half-solved] Dynamic XSL generation with "cocoon:" : excalibur Source or cocoon Source bug ?
Date Thu, 31 Jul 2003 12:21:31 GMT
I changed the default transformer from "xsltc" to "xalan" and it works...
What's wrong with the xsltc ?
That's not the first time I see things working with "xalan" and not 
"xsltc"...

--
Olivier


Olivier Billard wrote:

> Hi all,
>
> I have some troubles with a dynamic generated xsl. Here is the sitemap 
> snippet :
>
>            <map:match select="requests">
>               <map:generate src="..."/>
>               <map:transform src="cocoon:/picto-filter.xsl">
>                   <map:parameter name="profile" 
> value="{session-attr:profile}"/>
>               </map:transform>
>               <map:serialize type="xml"/>
>            </map:match>
>
>            <map:match pattern="picto-filter.xsl">
>               <map:generate src="resources/workflow.xconf"/>
>               <map:transform 
> src="stylesheets/picto-filter-generator.xsl"/>
>               <map:serialize type="xml"/>
>           </map:match>
>
> And I've got the following stack trace (long... but maybe usefull for 
> info) :
>
> Original Exception: 
> org.apache.excalibur.xml.xslt.XSLTProcessorException: Exception in 
> creating Transform Handler
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.getTransformerHandlerAndValidity(XSLTProcessorImpl.java:375) 
>
>    at 
> org.apache.cocoon.transformation.TraxTransformer.setup(TraxTransformer.java:302) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:391) 
>
>    at 
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:671) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:505) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:467) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:150) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:84) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:164) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:162) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:162) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:325) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:307) 
>
>    at org.apache.cocoon.Cocoon.process(Cocoon.java:626)
>    at 
> org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1154)
>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>    at 
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:360)
>    at 
> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294) 
>
>    at 
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558)
>    at org.mortbay.http.HttpContext.handle(HttpContext.java:1714)
>    at 
> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:507) 
>
>    at org.mortbay.http.HttpContext.handle(HttpContext.java:1664)
>    at org.mortbay.http.HttpServer.service(HttpServer.java:863)
>    at org.mortbay.http.HttpConnection.service(HttpConnection.java:775)
>    at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939)
>    at org.mortbay.http.HttpConnection.handle(HttpConnection.java:792)
>    at 
> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201)
>    at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
>    at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)
> Caused by: org.apache.cocoon.ProcessingException: Could not read 
> resource 
> file:/E:/Dev/IKA/DocHelp/webapp-dochelp/resources/workflow.xconf: 
> javax.xml.transform.TransformerException: java.util.EmptyStackException
>    at 
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:151) 
>
>    at 
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:262) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:679) 
>
>    at 
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:415) 
>
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.sourceToSAX(XSLTProcessorImpl.java:389) 
>
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.getTransformerHandlerAndValidity(XSLTProcessorImpl.java:311) 
>
>    ... 30 more
> Caused by: javax.xml.transform.TransformerException: 
> java.util.EmptyStackException
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:664) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:298) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerHandlerImpl.endDocument(TransformerHandlerImpl.java:265) 
>
>    at 
> org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:91) 
>
>    at 
> org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:529) 
>
>    at org.apache.xerces.parsers.AbstractSAXParser.endDocument(Unknown 
> Source)
>    at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown 
> Source)
>    at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown Source)
>    at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
>    at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown Source)
>    at 
> org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.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.DTDConfiguration.parse(Unknown Source)
>    at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>    at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
>    at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:318)
>    at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:337)
>    at 
> org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:198)
>    at 
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:140) 
>
>    ... 35 more
> Caused by: java.util.EmptyStackException
>    at java.util.Stack.peek(Stack.java:79)
>    at org.apache.xalan.xsltc.compiler.Parser.characters(Parser.java:1312)
>    at 
> org.apache.xalan.xsltc.trax.TemplatesHandlerImpl.characters(TemplatesHandlerImpl.java:316) 
>
>    at 
> org.apache.cocoon.xml.ContentHandlerWrapper.characters(ContentHandlerWrapper.java:198) 
>
>    at 
> org.apache.cocoon.components.source.impl.EnvironmentChanger.characters(SitemapSource.java:561) 
>
>    at 
> org.apache.cocoon.components.sax.XMLTeePipe.characters(XMLTeePipe.java:129) 
>
>    at 
> org.apache.xml.serializer.ToXMLSAXHandler.characters(ToXMLSAXHandler.java:534) 
>
>    at 
> org.apache.xml.utils.FastStringBuffer.sendSAXcharacters(FastStringBuffer.java:1024) 
>
>    at 
> org.apache.xml.dtm.ref.sax2dtm.SAX2DTM2.dispatchCharactersEvents(SAX2DTM2.java:3102) 
>
>    at org.apache.xalan.xsltc.dom.SAXImpl.characters(SAXImpl.java:1230)
>    at 
> org.apache.xalan.xsltc.dom.DOMAdapter.characters(DOMAdapter.java:346)
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.transform()
>    at 
> org.apache.xalan.xsltc.runtime.AbstractTranslet.transform(AbstractTranslet.java:533) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:655) 
>
>    ... 54 more
>
> Original Exception: org.apache.cocoon.ProcessingException: Could not 
> read resource 
> file:/E:/Dev/IKA/DocHelp/webapp-dochelp/resources/workflow.xconf: 
> javax.xml.transform.TransformerException: java.util.EmptyStackException
>    at 
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:151) 
>
>    at 
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:262) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:679) 
>
>    at 
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:415) 
>
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.sourceToSAX(XSLTProcessorImpl.java:389) 
>
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.getTransformerHandlerAndValidity(XSLTProcessorImpl.java:311) 
>
>    at 
> org.apache.cocoon.transformation.TraxTransformer.setup(TraxTransformer.java:302) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:391) 
>
>    at 
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:671) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:505) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:467) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:150) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:84) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:164) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:162) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:162) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:325) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:307) 
>
>    at org.apache.cocoon.Cocoon.process(Cocoon.java:626)
>    at 
> org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1154)
>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>    at 
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:360)
>    at 
> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294) 
>
>    at 
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558)
>    at org.mortbay.http.HttpContext.handle(HttpContext.java:1714)
>    at 
> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:507) 
>
>    at org.mortbay.http.HttpContext.handle(HttpContext.java:1664)
>    at org.mortbay.http.HttpServer.service(HttpServer.java:863)
>    at org.mortbay.http.HttpConnection.service(HttpConnection.java:775)
>    at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939)
>    at org.mortbay.http.HttpConnection.handle(HttpConnection.java:792)
>    at 
> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201)
>    at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
>    at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)
> Caused by: javax.xml.transform.TransformerException: 
> java.util.EmptyStackException
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:664) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:298) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerHandlerImpl.endDocument(TransformerHandlerImpl.java:265) 
>
>    at 
> org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:91) 
>
>    at 
> org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:529) 
>
>    at org.apache.xerces.parsers.AbstractSAXParser.endDocument(Unknown 
> Source)
>    at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown 
> Source)
>    at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown Source)
>    at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
>    at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown Source)
>    at 
> org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.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.DTDConfiguration.parse(Unknown Source)
>    at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>    at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
>    at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:318)
>    at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:337)
>    at 
> org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:198)
>    at 
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:140) 
>
>    ... 35 more
> Caused by: java.util.EmptyStackException
>    at java.util.Stack.peek(Stack.java:79)
>    at org.apache.xalan.xsltc.compiler.Parser.characters(Parser.java:1312)
>    at 
> org.apache.xalan.xsltc.trax.TemplatesHandlerImpl.characters(TemplatesHandlerImpl.java:316) 
>
>    at 
> org.apache.cocoon.xml.ContentHandlerWrapper.characters(ContentHandlerWrapper.java:198) 
>
>    at 
> org.apache.cocoon.components.source.impl.EnvironmentChanger.characters(SitemapSource.java:561) 
>
>    at 
> org.apache.cocoon.components.sax.XMLTeePipe.characters(XMLTeePipe.java:129) 
>
>    at 
> org.apache.xml.serializer.ToXMLSAXHandler.characters(ToXMLSAXHandler.java:534) 
>
>    at 
> org.apache.xml.utils.FastStringBuffer.sendSAXcharacters(FastStringBuffer.java:1024) 
>
>    at 
> org.apache.xml.dtm.ref.sax2dtm.SAX2DTM2.dispatchCharactersEvents(SAX2DTM2.java:3102) 
>
>    at org.apache.xalan.xsltc.dom.SAXImpl.characters(SAXImpl.java:1230)
>    at 
> org.apache.xalan.xsltc.dom.DOMAdapter.characters(DOMAdapter.java:346)
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.transform()
>    at 
> org.apache.xalan.xsltc.runtime.AbstractTranslet.transform(AbstractTranslet.java:533) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:655) 
>
>    ... 54 more
> javax.xml.transform.TransformerException: java.util.EmptyStackException
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:664) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:298) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerHandlerImpl.endDocument(TransformerHandlerImpl.java:265) 
>
>    at 
> org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:91) 
>
>    at 
> org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:529) 
>
>    at org.apache.xerces.parsers.AbstractSAXParser.endDocument(Unknown 
> Source)
>    at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown 
> Source)
>    at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown Source)
>    at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
>    at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown Source)
>    at 
> org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.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.DTDConfiguration.parse(Unknown Source)
>    at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>    at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
>    at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:318)
>    at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:337)
>    at 
> org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:198)
>    at 
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:140) 
>
>    at 
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:262) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:679) 
>
>    at 
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:415) 
>
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.sourceToSAX(XSLTProcessorImpl.java:389) 
>
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.getTransformerHandlerAndValidity(XSLTProcessorImpl.java:311) 
>
>    at 
> org.apache.cocoon.transformation.TraxTransformer.setup(TraxTransformer.java:302) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:391) 
>
>    at 
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:671) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:505) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:467) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:150) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:84) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:164) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:162) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:162) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:325) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:307) 
>
>    at org.apache.cocoon.Cocoon.process(Cocoon.java:626)
>    at 
> org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1154)
>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>    at 
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:360)
>    at 
> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294) 
>
>    at 
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558)
>    at org.mortbay.http.HttpContext.handle(HttpContext.java:1714)
>    at 
> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:507) 
>
>    at org.mortbay.http.HttpContext.handle(HttpContext.java:1664)
>    at org.mortbay.http.HttpServer.service(HttpServer.java:863)
>    at org.mortbay.http.HttpConnection.service(HttpConnection.java:775)
>    at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939)
>    at org.mortbay.http.HttpConnection.handle(HttpConnection.java:792)
>    at 
> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201)
>    at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
>    at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)
> Caused by: java.util.EmptyStackException
>    at java.util.Stack.peek(Stack.java:79)
>    at org.apache.xalan.xsltc.compiler.Parser.characters(Parser.java:1312)
>    at 
> org.apache.xalan.xsltc.trax.TemplatesHandlerImpl.characters(TemplatesHandlerImpl.java:316) 
>
>    at 
> org.apache.cocoon.xml.ContentHandlerWrapper.characters(ContentHandlerWrapper.java:198) 
>
>    at 
> org.apache.cocoon.components.source.impl.EnvironmentChanger.characters(SitemapSource.java:561) 
>
>    at 
> org.apache.cocoon.components.sax.XMLTeePipe.characters(XMLTeePipe.java:129) 
>
>    at 
> org.apache.xml.serializer.ToXMLSAXHandler.characters(ToXMLSAXHandler.java:534) 
>
>    at 
> org.apache.xml.utils.FastStringBuffer.sendSAXcharacters(FastStringBuffer.java:1024) 
>
>    at 
> org.apache.xml.dtm.ref.sax2dtm.SAX2DTM2.dispatchCharactersEvents(SAX2DTM2.java:3102) 
>
>    at org.apache.xalan.xsltc.dom.SAXImpl.characters(SAXImpl.java:1230)
>    at 
> org.apache.xalan.xsltc.dom.DOMAdapter.characters(DOMAdapter.java:346)
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.transform()
>    at 
> org.apache.xalan.xsltc.runtime.AbstractTranslet.transform(AbstractTranslet.java:533) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:655) 
>
>    ... 54 more
> ---------
> java.util.EmptyStackException
>    at java.util.Stack.peek(Stack.java:79)
>    at org.apache.xalan.xsltc.compiler.Parser.characters(Parser.java:1312)
>    at 
> org.apache.xalan.xsltc.trax.TemplatesHandlerImpl.characters(TemplatesHandlerImpl.java:316) 
>
>    at 
> org.apache.cocoon.xml.ContentHandlerWrapper.characters(ContentHandlerWrapper.java:198) 
>
>    at 
> org.apache.cocoon.components.source.impl.EnvironmentChanger.characters(SitemapSource.java:561) 
>
>    at 
> org.apache.cocoon.components.sax.XMLTeePipe.characters(XMLTeePipe.java:129) 
>
>    at 
> org.apache.xml.serializer.ToXMLSAXHandler.characters(ToXMLSAXHandler.java:534) 
>
>    at 
> org.apache.xml.utils.FastStringBuffer.sendSAXcharacters(FastStringBuffer.java:1024) 
>
>    at 
> org.apache.xml.dtm.ref.sax2dtm.SAX2DTM2.dispatchCharactersEvents(SAX2DTM2.java:3102) 
>
>    at org.apache.xalan.xsltc.dom.SAXImpl.characters(SAXImpl.java:1230)
>    at 
> org.apache.xalan.xsltc.dom.DOMAdapter.characters(DOMAdapter.java:346)
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.transform()
>    at 
> org.apache.xalan.xsltc.runtime.AbstractTranslet.transform(AbstractTranslet.java:533) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:655) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:298) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerHandlerImpl.endDocument(TransformerHandlerImpl.java:265) 
>
>    at 
> org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:91) 
>
>    at 
> org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:529) 
>
>    at org.apache.xerces.parsers.AbstractSAXParser.endDocument(Unknown 
> Source)
>    at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown 
> Source)
>    at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown Source)
>    at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
>    at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown Source)
>    at 
> org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.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.DTDConfiguration.parse(Unknown Source)
>    at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>    at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
>    at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:318)
>    at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:337)
>    at 
> org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:198)
>    at 
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:140) 
>
>    at 
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:262) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:679) 
>
>    at 
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:415) 
>
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.sourceToSAX(XSLTProcessorImpl.java:389) 
>
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.getTransformerHandlerAndValidity(XSLTProcessorImpl.java:311) 
>
>    at 
> org.apache.cocoon.transformation.TraxTransformer.setup(TraxTransformer.java:302) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:391) 
>
>    at 
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:671) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:505) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:467) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:150) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:84) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:164) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:162) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:162) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:325) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:307) 
>
>    at org.apache.cocoon.Cocoon.process(Cocoon.java:626)
>    at 
> org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1154)
>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>    at 
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:360)
>    at 
> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294) 
>
>    at 
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558)
>    at org.mortbay.http.HttpContext.handle(HttpContext.java:1714)
>    at 
> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:507) 
>
>    at org.mortbay.http.HttpContext.handle(HttpContext.java:1664)
>    at org.mortbay.http.HttpServer.service(HttpServer.java:863)
>    at org.mortbay.http.HttpConnection.service(HttpConnection.java:775)
>    at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939)
>    at org.mortbay.http.HttpConnection.handle(HttpConnection.java:792)
>    at 
> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201)
>    at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
>    at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)
>
> Original Exception: javax.xml.transform.TransformerException: 
> java.util.EmptyStackException
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:664) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:298) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerHandlerImpl.endDocument(TransformerHandlerImpl.java:265) 
>
>    at 
> org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:91) 
>
>    at 
> org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:529) 
>
>    at org.apache.xerces.parsers.AbstractSAXParser.endDocument(Unknown 
> Source)
>    at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown 
> Source)
>    at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown Source)
>    at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
>    at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown Source)
>    at 
> org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.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.DTDConfiguration.parse(Unknown Source)
>    at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>    at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
>    at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:318)
>    at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:337)
>    at 
> org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:198)
>    at 
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:140) 
>
>    at 
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:262) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:679) 
>
>    at 
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:415) 
>
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.sourceToSAX(XSLTProcessorImpl.java:389) 
>
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.getTransformerHandlerAndValidity(XSLTProcessorImpl.java:311) 
>
>    at 
> org.apache.cocoon.transformation.TraxTransformer.setup(TraxTransformer.java:302) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:391) 
>
>    at 
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:671) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:505) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:467) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:150) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:84) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:164) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:162) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:162) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:325) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:307) 
>
>    at org.apache.cocoon.Cocoon.process(Cocoon.java:626)
>    at 
> org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1154)
>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>    at 
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:360)
>    at 
> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294) 
>
>    at 
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558)
>    at org.mortbay.http.HttpContext.handle(HttpContext.java:1714)
>    at 
> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:507) 
>
>    at org.mortbay.http.HttpContext.handle(HttpContext.java:1664)
>    at org.mortbay.http.HttpServer.service(HttpServer.java:863)
>    at org.mortbay.http.HttpConnection.service(HttpConnection.java:775)
>    at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939)
>    at org.mortbay.http.HttpConnection.handle(HttpConnection.java:792)
>    at 
> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201)
>    at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
>    at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)
> Caused by: java.util.EmptyStackException
>    at java.util.Stack.peek(Stack.java:79)
>    at org.apache.xalan.xsltc.compiler.Parser.characters(Parser.java:1312)
>    at 
> org.apache.xalan.xsltc.trax.TemplatesHandlerImpl.characters(TemplatesHandlerImpl.java:316) 
>
>    at 
> org.apache.cocoon.xml.ContentHandlerWrapper.characters(ContentHandlerWrapper.java:198) 
>
>    at 
> org.apache.cocoon.components.source.impl.EnvironmentChanger.characters(SitemapSource.java:561) 
>
>    at 
> org.apache.cocoon.components.sax.XMLTeePipe.characters(XMLTeePipe.java:129) 
>
>    at 
> org.apache.xml.serializer.ToXMLSAXHandler.characters(ToXMLSAXHandler.java:534) 
>
>    at 
> org.apache.xml.utils.FastStringBuffer.sendSAXcharacters(FastStringBuffer.java:1024) 
>
>    at 
> org.apache.xml.dtm.ref.sax2dtm.SAX2DTM2.dispatchCharactersEvents(SAX2DTM2.java:3102) 
>
>    at org.apache.xalan.xsltc.dom.SAXImpl.characters(SAXImpl.java:1230)
>    at 
> org.apache.xalan.xsltc.dom.DOMAdapter.characters(DOMAdapter.java:346)
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.transform()
>    at 
> org.apache.xalan.xsltc.runtime.AbstractTranslet.transform(AbstractTranslet.java:533) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:655) 
>
>    ... 54 more
> ---------
> java.util.EmptyStackException
>    at java.util.Stack.peek(Stack.java:79)
>    at org.apache.xalan.xsltc.compiler.Parser.characters(Parser.java:1312)
>    at 
> org.apache.xalan.xsltc.trax.TemplatesHandlerImpl.characters(TemplatesHandlerImpl.java:316) 
>
>    at 
> org.apache.cocoon.xml.ContentHandlerWrapper.characters(ContentHandlerWrapper.java:198) 
>
>    at 
> org.apache.cocoon.components.source.impl.EnvironmentChanger.characters(SitemapSource.java:561) 
>
>    at 
> org.apache.cocoon.components.sax.XMLTeePipe.characters(XMLTeePipe.java:129) 
>
>    at 
> org.apache.xml.serializer.ToXMLSAXHandler.characters(ToXMLSAXHandler.java:534) 
>
>    at 
> org.apache.xml.utils.FastStringBuffer.sendSAXcharacters(FastStringBuffer.java:1024) 
>
>    at 
> org.apache.xml.dtm.ref.sax2dtm.SAX2DTM2.dispatchCharactersEvents(SAX2DTM2.java:3102) 
>
>    at org.apache.xalan.xsltc.dom.SAXImpl.characters(SAXImpl.java:1230)
>    at 
> org.apache.xalan.xsltc.dom.DOMAdapter.characters(DOMAdapter.java:346)
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.transform()
>    at 
> org.apache.xalan.xsltc.runtime.AbstractTranslet.transform(AbstractTranslet.java:533) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:655) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:298) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerHandlerImpl.endDocument(TransformerHandlerImpl.java:265) 
>
>    at 
> org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:91) 
>
>    at 
> org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:529) 
>
>    at org.apache.xerces.parsers.AbstractSAXParser.endDocument(Unknown 
> Source)
>    at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown 
> Source)
>    at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown Source)
>    at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
>    at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown Source)
>    at 
> org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.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.DTDConfiguration.parse(Unknown Source)
>    at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>    at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
>    at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:318)
>    at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:337)
>    at 
> org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:198)
>    at 
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:140) 
>
>    at 
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:262) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:679) 
>
>    at 
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:415) 
>
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.sourceToSAX(XSLTProcessorImpl.java:389) 
>
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.getTransformerHandlerAndValidity(XSLTProcessorImpl.java:311) 
>
>    at 
> org.apache.cocoon.transformation.TraxTransformer.setup(TraxTransformer.java:302) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:391) 
>
>    at 
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:671) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:505) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:467) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:150) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:84) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:164) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:162) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:162) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:325) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:307) 
>
>    at org.apache.cocoon.Cocoon.process(Cocoon.java:626)
>    at 
> org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1154)
>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>    at 
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:360)
>    at 
> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294) 
>
>    at 
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558)
>    at org.mortbay.http.HttpContext.handle(HttpContext.java:1714)
>    at 
> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:507) 
>
>    at org.mortbay.http.HttpContext.handle(HttpContext.java:1664)
>    at org.mortbay.http.HttpServer.service(HttpServer.java:863)
>    at org.mortbay.http.HttpConnection.service(HttpConnection.java:775)
>    at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939)
>    at org.mortbay.http.HttpConnection.handle(HttpConnection.java:792)
>    at 
> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201)
>    at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
>    at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)
>
>
> stacktrace
>
> org.apache.cocoon.ProcessingException: Unable to get transformer 
> handler for cocoon:/picto-filter.xsl: 
> org.apache.excalibur.xml.xslt.XSLTProcessorException: Exception in 
> creating Transform Handler
>    at 
> org.apache.cocoon.transformation.TraxTransformer.setup(TraxTransformer.java:307) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:391) 
>
>    at 
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:671) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:505) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:467) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:150) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:84) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:164) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:162) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:162) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:325) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:307) 
>
>    at org.apache.cocoon.Cocoon.process(Cocoon.java:626)
>    at 
> org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1154)
>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>    at 
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:360)
>    at 
> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294) 
>
>    at 
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558)
>    at org.mortbay.http.HttpContext.handle(HttpContext.java:1714)
>    at 
> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:507) 
>
>    at org.mortbay.http.HttpContext.handle(HttpContext.java:1664)
>    at org.mortbay.http.HttpServer.service(HttpServer.java:863)
>    at org.mortbay.http.HttpConnection.service(HttpConnection.java:775)
>    at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939)
>    at org.mortbay.http.HttpConnection.handle(HttpConnection.java:792)
>    at 
> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201)
>    at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
>    at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)
> Caused by: org.apache.excalibur.xml.xslt.XSLTProcessorException: 
> Exception in creating Transform Handler
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.getTransformerHandlerAndValidity(XSLTProcessorImpl.java:375) 
>
>    at 
> org.apache.cocoon.transformation.TraxTransformer.setup(TraxTransformer.java:302) 
>
>    ... 29 more
> Caused by: org.apache.cocoon.ProcessingException: Could not read 
> resource 
> file:/E:/Dev/IKA/DocHelp/webapp-dochelp/resources/workflow.xconf: 
> javax.xml.transform.TransformerException: java.util.EmptyStackException
>    at 
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:151) 
>
>    at 
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:262) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:679) 
>
>    at 
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:415) 
>
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.sourceToSAX(XSLTProcessorImpl.java:389) 
>
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.getTransformerHandlerAndValidity(XSLTProcessorImpl.java:311) 
>
>    ... 30 more
> Caused by: javax.xml.transform.TransformerException: 
> java.util.EmptyStackException
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:664) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:298) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerHandlerImpl.endDocument(TransformerHandlerImpl.java:265) 
>
>    at 
> org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:91) 
>
>    at 
> org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:529) 
>
>    at org.apache.xerces.parsers.AbstractSAXParser.endDocument(Unknown 
> Source)
>    at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown 
> Source)
>    at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown Source)
>    at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
>    at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown Source)
>    at 
> org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.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.DTDConfiguration.parse(Unknown Source)
>    at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>    at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
>    at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:318)
>    at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:337)
>    at 
> org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:198)
>    at 
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:140) 
>
>    ... 35 more
> Caused by: java.util.EmptyStackException
>    at java.util.Stack.peek(Stack.java:79)
>    at org.apache.xalan.xsltc.compiler.Parser.characters(Parser.java:1312)
>    at 
> org.apache.xalan.xsltc.trax.TemplatesHandlerImpl.characters(TemplatesHandlerImpl.java:316) 
>
>    at 
> org.apache.cocoon.xml.ContentHandlerWrapper.characters(ContentHandlerWrapper.java:198) 
>
>    at 
> org.apache.cocoon.components.source.impl.EnvironmentChanger.characters(SitemapSource.java:561) 
>
>    at 
> org.apache.cocoon.components.sax.XMLTeePipe.characters(XMLTeePipe.java:129) 
>
>    at 
> org.apache.xml.serializer.ToXMLSAXHandler.characters(ToXMLSAXHandler.java:534) 
>
>    at 
> org.apache.xml.utils.FastStringBuffer.sendSAXcharacters(FastStringBuffer.java:1024) 
>
>    at 
> org.apache.xml.dtm.ref.sax2dtm.SAX2DTM2.dispatchCharactersEvents(SAX2DTM2.java:3102) 
>
>    at org.apache.xalan.xsltc.dom.SAXImpl.characters(SAXImpl.java:1230)
>    at 
> org.apache.xalan.xsltc.dom.DOMAdapter.characters(DOMAdapter.java:346)
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.transform()
>    at 
> org.apache.xalan.xsltc.runtime.AbstractTranslet.transform(AbstractTranslet.java:533) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:655) 
>
>    ... 54 more
> org.apache.excalibur.xml.xslt.XSLTProcessorException: Exception in 
> creating Transform Handler
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.getTransformerHandlerAndValidity(XSLTProcessorImpl.java:375) 
>
>    at 
> org.apache.cocoon.transformation.TraxTransformer.setup(TraxTransformer.java:302) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.setupPipeline(AbstractProcessingPipeline.java:391) 
>
>    at 
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.setupPipeline(AbstractCachingProcessingPipeline.java:671) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.preparePipeline(AbstractProcessingPipeline.java:505) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:467) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:150) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:84) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:164) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:162) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:162) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:325) 
>
>    at 
> org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:307) 
>
>    at org.apache.cocoon.Cocoon.process(Cocoon.java:626)
>    at 
> org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1154)
>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>    at 
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:360)
>    at 
> org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294) 
>
>    at 
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558)
>    at org.mortbay.http.HttpContext.handle(HttpContext.java:1714)
>    at 
> org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:507) 
>
>    at org.mortbay.http.HttpContext.handle(HttpContext.java:1664)
>    at org.mortbay.http.HttpServer.service(HttpServer.java:863)
>    at org.mortbay.http.HttpConnection.service(HttpConnection.java:775)
>    at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939)
>    at org.mortbay.http.HttpConnection.handle(HttpConnection.java:792)
>    at 
> org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201)
>    at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
>    at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)
> Caused by: org.apache.cocoon.ProcessingException: Could not read 
> resource 
> file:/E:/Dev/IKA/DocHelp/webapp-dochelp/resources/workflow.xconf: 
> javax.xml.transform.TransformerException: java.util.EmptyStackException
>    at 
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:151) 
>
>    at 
> org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:262) 
>
>    at 
> org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:679) 
>
>    at 
> org.apache.cocoon.components.source.impl.SitemapSource.toSAX(SitemapSource.java:415) 
>
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.sourceToSAX(XSLTProcessorImpl.java:389) 
>
>    at 
> org.apache.excalibur.xml.xslt.XSLTProcessorImpl.getTransformerHandlerAndValidity(XSLTProcessorImpl.java:311) 
>
>    ... 30 more
> Caused by: javax.xml.transform.TransformerException: 
> java.util.EmptyStackException
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:664) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:298) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerHandlerImpl.endDocument(TransformerHandlerImpl.java:265) 
>
>    at 
> org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:91) 
>
>    at 
> org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:529) 
>
>    at org.apache.xerces.parsers.AbstractSAXParser.endDocument(Unknown 
> Source)
>    at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity(Unknown 
> Source)
>    at org.apache.xerces.impl.XMLEntityManager.endEntity(Unknown Source)
>    at org.apache.xerces.impl.XMLEntityScanner.load(Unknown Source)
>    at org.apache.xerces.impl.XMLEntityScanner.skipSpaces(Unknown Source)
>    at 
> org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.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.DTDConfiguration.parse(Unknown Source)
>    at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>    at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
>    at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:318)
>    at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:337)
>    at 
> org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:198)
>    at 
> org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:140) 
>
>    ... 35 more
> Caused by: java.util.EmptyStackException
>    at java.util.Stack.peek(Stack.java:79)
>    at org.apache.xalan.xsltc.compiler.Parser.characters(Parser.java:1312)
>    at 
> org.apache.xalan.xsltc.trax.TemplatesHandlerImpl.characters(TemplatesHandlerImpl.java:316) 
>
>    at 
> org.apache.cocoon.xml.ContentHandlerWrapper.characters(ContentHandlerWrapper.java:198) 
>
>    at 
> org.apache.cocoon.components.source.impl.EnvironmentChanger.characters(SitemapSource.java:561) 
>
>    at 
> org.apache.cocoon.components.sax.XMLTeePipe.characters(XMLTeePipe.java:129) 
>
>    at 
> org.apache.xml.serializer.ToXMLSAXHandler.characters(ToXMLSAXHandler.java:534) 
>
>    at 
> org.apache.xml.utils.FastStringBuffer.sendSAXcharacters(FastStringBuffer.java:1024) 
>
>    at 
> org.apache.xml.dtm.ref.sax2dtm.SAX2DTM2.dispatchCharactersEvents(SAX2DTM2.java:3102) 
>
>    at org.apache.xalan.xsltc.dom.SAXImpl.characters(SAXImpl.java:1230)
>    at 
> org.apache.xalan.xsltc.dom.DOMAdapter.characters(DOMAdapter.java:346)
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.applyTemplates()
>    at picto_filter_generator.transform()
>    at 
> org.apache.xalan.xsltc.runtime.AbstractTranslet.transform(AbstractTranslet.java:533) 
>
>    at 
> org.apache.xalan.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:655) 
>
>    ... 54 more
>
> but when I replace
> <map:transform src="cocoon:/picto-filter.xsl">
> by
> <map:transform src="http://localhost:8888/picto-filter.xsl">
> all works well...
> But I don't want to externalize the xsl pipeline to the users !...
>
> Any idea ?
> Is this a problem in the pool of sources ?
>
> Many thanks in advance, I'm beginning to crash my head against the 
> wall... ;)



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