Re: NullPointerException after a

Tue, 28 Jun 2005 04:15:13 -0700 

Have you registered the XInclude Transformer in your sitemap?


Katharina Kreis wrote:


Hi!
I get a NullPointerException when transforming a xinclude. Can anybody tell me why? 
Thanks Katharina

P.S. Here are my files:

This is my sitemap:
===================

           <map:match pattern="bs-portlets-stockwerk">
                       <map:generate type="portal"/>
<map:transform src="styles/portal/portal_stockwerk.xsl"/> <map:transform src="styles/portal/dyn_stockwerk.xsl"> <map:parameter name="id" value="{request-param:id}"/> <map:parameter name="gebaeudeid" value="{request-param:gebaeudeid}"/> </map:transform> <!-- Output here see below --> <map:transform type="xinclude"/> <!-- Here comes the error!!! --> 
                       <map:serialize type="xml"/>
           </map:match>
                      <map:match pattern="bsplt_svg_data">
                       <map:generate src="svg/embedsvg.xml"/>
                       <map:transform type="xslt" src="svg/embedsvg.xsl">
<map:parameter name="stockwerkId" value="{request-param:id}"/> <map:parameter name="gebaeudeId" value="{request-param:gebaeudeid}"/> 
                       </map:transform>
                       <map:serialize type="xml"/>
           </map:match>


styles/portal/dyn_stockwerk.xsl:
================================

           <?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; xmlns:xi="http://www.w3.org/2001/XInclude";> 
           <xsl:param name="id" />
           <xsl:param name="gebaeudeid"/>
           <xsl:template match="dyn_portlet">
<xi:include><xsl:attribute name="href"><xsl:apply-templates/><xsl:text>?id=</xsl:text><xsl:value-of select="$id"/><xsl:text>&amp;gebaeudeid=</xsl:text><xsl:value-of select="$gebaeudeid"/></xsl:attribute></xi:include> 
           </xsl:template>
           <!-- Copy all and apply templates -->
             <xsl:template match="@*|node()">
              <xsl:copy>
               <xsl:apply-templates select="@*|node()" />
              </xsl:copy>
             </xsl:template>
           </xsl:stylesheet>

Output after dyn_stockwerk.xsl:
================================
       ...
           <content>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"; href="cocoon:/bsplt_svg_data?id=1076002008&gebaeudeid=1" /> 
         </content>
       ...

embedsvg.xml:
=============

       <?xml version="1.0"?>
       <p>
<embed src="http://localhost:8080/cocoon/20050517app/bsplt_svg_stockwerk?bs=yes&amp;type=stockwerk"; name="svgframe" id="svgframe" width="455" 
           height="500" type="image/svg+xml" border="0"></embed>
<iframe src="http://localhost:8080/cocoon/20050517app/bsplt_embed"; scrolling="no" width="0" align="center" height="0" name="formframe" id="formframe" type="text/html"></iframe> 
       </p>


embedsvg.xsl:
=============

       <?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; xmlns:xi="http://www.w3.org/2001/XInclude";> 
              <xsl:param name="stockwerkId"/>
       <xsl:param name="gebaeudeId"/>
              <xsl:template match="p">
<xsl:variable name="href" select="[EMAIL PROTECTED]'svgframe']/@src"/> 
           <xsl:variable name="Anhang">
<xsl:text>&amp;id=</xsl:text><xsl:value-of select="$stockwerkId"/> <xsl:text>&amp;gid=</xsl:text><xsl:value-of select="$gebaeudeId"/> 
           </xsl:variable>
           <xsl:variable name="src" select="concat($href,$Anhang)"/>
                      <xsl:element name="p">
<xsl:attribute name="xmlns:xi"><xsl:value-of select="'http://www.w3.org/2001/XInclude'"/></xsl:attribute> 
           <xsl:element name="embed">
<xsl:attribute name="name"><xsl:value-of select="'svgframe'"/></xsl:attribute> <xsl:attribute name="id"><xsl:value-of select="'svgframe'"/></xsl:attribute> <xsl:attribute name="width"><xsl:value-of select="'455'"/></xsl:attribute> <xsl:attribute name="height"><xsl:value-of select="'500'"/></xsl:attribute> <xsl:attribute name="src"><xsl:value-of select= '$src'/></xsl:attribute> <xsl:attribute name="type"><xsl:value-of select="'image/svg+xml'"/></xsl:attribute> <xsl:attribute name="border"><xsl:value-of select="'0'"/></xsl:attribute> 
           </xsl:element>
             <xsl:copy-of select="iframe"/>
             </xsl:element>
              </xsl:template>
              </xsl:stylesheet>


Output from bsplt_svg_data:
============================

       <p xmlns:xi="http://www.w3.org/2001/XInclude";>
<embed name="svgframe" id="svgframe" width="455" height="500" src="http://localhost:8080/cocoon/20050517app/bsplt_svg_stockwerk?bs=yes&type=stockwerk&id=1076002008&gid=1"; type="image/svg+xml" border="0" /> <iframe src="http://localhost:8080/cocoon/20050517app/bsplt_embed"; scrolling="no" width="0" align="center" height="0" name="formframe" id="formframe" type="text/html" /> 
       </p>


ERROR:
======
Original Exception: java.lang.RuntimeException: java.lang.RuntimeException: org.apache.cocoon.ProcessingException: Failed to execute pipeline.: java.lang.RuntimeException: java.lang.NullPointerException at org.apache.xalan.transformer.TransformerImpl.run(TransformerImpl.java:3407) at org.apache.xalan.transformer.TransformerHandlerImpl.endDocument(TransformerHandlerImpl.java:433) at org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:91) at org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:583) at org.apache.cocoon.webapps.portal.generation.PortalGenerator.generate(PortalGenerator.java:91) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:581) at org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:196) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:525) at org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:155) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:84) at org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:165) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:84) at org.apache.cocoon.components.treeprocessor.sitemap.ActTypeNode.invoke(ActTypeNode.java:173) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:84) at org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:165) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:107) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:162) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:107) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:136) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:371) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:312) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:133) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:84) at org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:165) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:107) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:162) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:107) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:136) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:371) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:312) 
   at org.apache.cocoon.Cocoon.process(Cocoon.java:656)
at org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1112) 
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:284) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:204) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:257) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:567) at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:245) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:199) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:567) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:184) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:164) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:149) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:567) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:156) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:151) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:567) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972) at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:206) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:833) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:732) at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:619) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:688) 
   at java.lang.Thread.run(Thread.java:534)

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