--- Joerg Heinicke <[EMAIL PROTECTED]> wrote: > I don't know about the SourceWritingTransformer and > its usage, but a NPE is > never the users fault in general. If you can provide > more info like a stack > trace, it will be easier for us to investigate. > > Joerg > > David Geleyn wrote: > > Hi, > > > > I'm trying to replace an attribute with the source > > writing transformer and I can't get it done. > > Whatever I try, when I want to replace an > attribute, a > > stack trace appears and a null pointer exception > > occured.
The stack trace: org.apache.cocoon.ProcessingException: Failed to execute pipeline.: java.lang.RuntimeException: java.lang.NullPointerException at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:554) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:492) at org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:147) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.SelectNode.invoke(SelectNode.java:133) 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:163) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:161) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:351) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:304) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:130) 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:163) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:161) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:351) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:304) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:130) 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:163) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:161) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:351) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:304) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:130) 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:163) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:161) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:351) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:304) at org.apache.cocoon.Cocoon.process(Cocoon.java:640) at org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1104) 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.lang.RuntimeException: java.lang.NullPointerException at org.apache.xalan.transformer.TransformerImpl.run(TransformerImpl.java:3364) at org.apache.xalan.transformer.TransformerHandlerImpl.endDocument(TransformerHandlerImpl.java:427) at org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:91) at org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:529) at org.apache.cocoon.generation.RequestGenerator.generate(RequestGenerator.java:221) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:548) ... 55 more java.lang.RuntimeException: java.lang.NullPointerException at org.apache.xalan.transformer.TransformerImpl.run(TransformerImpl.java:3364) at org.apache.xalan.transformer.TransformerHandlerImpl.endDocument(TransformerHandlerImpl.java:427) at org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:91) at org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:529) at org.apache.cocoon.generation.RequestGenerator.generate(RequestGenerator.java:221) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:548) at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:492) at org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:147) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.SelectNode.invoke(SelectNode.java:133) 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:163) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:161) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:351) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:304) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:130) 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:163) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:161) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:351) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:304) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:130) 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:163) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:161) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:351) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:304) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(MountNode.java:130) 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:163) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:108) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:161) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:351) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:304) at org.apache.cocoon.Cocoon.process(Cocoon.java:640) at org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1104) 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) David. ________________________________________________________________________ Want to chat instantly with your online friends? Get the FREE Yahoo! Messenger http://mail.messenger.yahoo.co.uk --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]