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From Christoph Hermann <christoph.herm...@guschtel.de>
Subject Re: Problem with XMLDB Transformer
Date Wed, 10 Aug 2005 10:22:26 GMT
Jonas Lundberg schrieb:

Hello,

> I also get that null pointer exception with the xmldb transformer and eXist.

Maybe someone can help with this?
Heres a stack trace:

---snip---
java.lang.NullPointerException
	at
org.apache.cocoon.transformation.AbstractSAXTransformer.startPrefixMapping(AbstractSAXTransformer.java:392)
	at
org.exist.cocoon.XMLDBTransformer.startPrefixMapping(XMLDBTransformer.java:526)
	at
org.apache.cocoon.xml.AbstractXMLPipe.startPrefixMapping(AbstractXMLPipe.java:66)
	at
org.apache.cocoon.xml.RedundantNamespacesFilter.startElement(RedundantNamespacesFilter.java:69)
	at
org.apache.cocoon.generation.JXTemplateGenerator.execute(JXTemplateGenerator.java:2949)
	at
org.apache.cocoon.generation.JXTemplateGenerator.performGeneration(JXTemplateGenerator.java:2486)
	at
org.apache.cocoon.generation.JXTemplateGenerator.generate(JXTemplateGenerator.java:2480)
	at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:581)
	at
org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:183)
	at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:483)
	at
org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:120)
	at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:46)
	at
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:130)
	at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:68)
	at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:138)
	at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:68)
	at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:92)
	at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:234)
	at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.handleCocoonRedirect(ConcreteTreeProcessor.java:298)
	at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.access$000(ConcreteTreeProcessor.java:47)
	at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor$TreeProcessorRedirector.cocoonRedirect(ConcreteTreeProcessor.java:339)
	at
org.apache.cocoon.environment.ForwardRedirector.redirect(ForwardRedirector.java:59)
	at
org.apache.cocoon.components.flow.AbstractInterpreter.forwardTo(AbstractInterpreter.java:209)
	at
org.apache.cocoon.components.flow.javascript.fom.FOM_JavaScriptInterpreter.forwardTo(FOM_JavaScriptInterpreter.java:894)
	at
org.apache.cocoon.components.flow.javascript.fom.FOM_Cocoon.forwardTo(FOM_Cocoon.java:698)
	at
org.apache.cocoon.components.flow.javascript.fom.FOM_Cocoon.jsFunction_sendPage(FOM_Cocoon.java:269)
	at inv6.invoke()
	at org.mozilla.javascript.FunctionObject.doInvoke(FunctionObject.java:523)
	at org.mozilla.javascript.FunctionObject.call(FunctionObject.java:438)
	at org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1244)
	at
org.mozilla.javascript.continuations.ContinuationInterpreter.interpret(ContinuationInterpreter.java:1134)
	at
org.mozilla.javascript.continuations.ContinuationInterpreter.interpret(ContinuationInterpreter.java:190)
	at
org.mozilla.javascript.continuations.ContinuationInterpreter.interpret(ContinuationInterpreter.java:138)
	at
org.mozilla.javascript.continuations.InterpretedFunctionImpl.call(InterpretedFunctionImpl.java:121)
	at org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1244)
	at
org.apache.cocoon.components.flow.javascript.fom.FOM_JavaScriptInterpreter.callFunction(FOM_JavaScriptInterpreter.java:755)
	at
org.apache.cocoon.components.treeprocessor.sitemap.CallFunctionNode.invoke(CallFunctionNode.java:135)
	at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:46)
	at
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:130)
	at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:68)
	at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:138)
	at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:68)
	at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:92)
	at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:234)
	at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:176)
	at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:250)
	at
org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:117)
	at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:46)
	at
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke(PreparableMatchNode.java:130)
	at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:68)
	at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:138)
	at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:68)
	at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:92)
	at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:234)
	at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:176)
	at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:250)
	at org.apache.cocoon.Cocoon.process(Cocoon.java:624)
	at org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1143)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:358)
	at
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
	at org.mortbay.http.HttpContext.handle(HttpContext.java:1807)
	at
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:525)
	at org.mortbay.http.HttpContext.handle(HttpContext.java:1757)
	at org.mortbay.http.HttpServer.service(HttpServer.java:879)
	at org.mortbay.http.HttpConnection.service(HttpConnection.java:789)
	at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:960)
	at org.mortbay.http.HttpConnection.handle(HttpConnection.java:806)
	at
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:218)
	at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:300)
	at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:511)
---snap---

AbstractXMLPipe line 66 is:
---snip---
    public void startPrefixMapping(String prefix, String uri)
    throws SAXException {
66        if (contentHandler != null)
contentHandler.startPrefixMapping(prefix, uri);
    }
---snap---

I'd be happy if someone had an Idea on how to fix this.

Christoph

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