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Posted to users@cocoon.apache.org by Edward S <su...@gmail.com> on 2006/11/10 22:58:33 UTC
NullPointerException while running a custom serializer
All,
I am trying to run a pipeline that ends with a custom serializer written by
me.
When I run the pipeline w/o a transformer in between, it runs without any
errors and gives back the expected result.
However, when I do include a transformer in between, it gives me this
'NullPointerException' with the following stack trace.
any thoughts on what is causing this?
org.apache.cocoon.ProcessingException: Failed to execute pipeline.:
java.lang.RuntimeException: java.lang.NullPointerException
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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:55)
at org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:562)
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.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.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:296)
at org.apache.excalibur.xml.impl.JaxpParser.parse(JaxpParser.java:315)
at org.apache.cocoon.components.source.SourceUtil.parse(SourceUtil.java:269)
at org.apache.cocoon.generation.FileGenerator.generate(FileGenerator.java:117)
at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:530)
at org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:468)
at org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:120)
at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:68)
at org.apache.cocoon.components.treeprocessor.ContainerNode.invoke(ContainerNode.java:31)
at org.apache.cocoon.components.treeprocessor.sitemap.CallNode.invoke(CallNode.java:93)
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:89)
at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:240)
at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:180)
at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:243)
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:89)
at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:240)
at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:180)
at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:243)
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:89)
at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:240)
at org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:180)
at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:243)
at org.apache.cocoon.Cocoon.process(Cocoon.java:606)
at org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:1119)
at com.fcg.dmsl.fdk.cocoon.servlet.FdkPublishServlet.service(FdkPublishServlet.java:73)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:534)
from Generator to two Pipeline
Posted by rachid harradi <ra...@gmx.net>.
Hallo together ,
i have a Generator with methode:
public void generate()
throws IOException, SAXException, ProcessingException {
SAXParser parser = null;
NodeDoc nodeDoc =null;
try {
this.dbmanager = (DBManager) this.manager.lookup(DBManager.ROLE);
nodeDoc = dbmanager.runMail_InfoAppealAccepted();
if(!nodeDoc.equals(null))
{
Convert2NodeDoc convert2NodeDoc = new Convert2NodeDoc();
//Xmlobject1
Mail_InfoAppealAcceptedType mail_InfoAppealAcceptedType =(Mail_InfoAppealAcceptedType)nodeDoc;
//Xmlobject2
documentType documenttype =convert2NodeDoc.createSendmail(mail_InfoAppealAcceptedType);
mail_InfoAppealAcceptedType.addChild(documenttype);
StringReader xmlReaderdoc = new StringReader(saveToString(nodeDoc));
inputSource = new InputSource(xmlReaderdoc);
StringReader xmlReader = new StringReader(saveToString(nodeDoc));
inputSource = new InputSource(xmlReader);
parser = (SAXParser)this.manager.lookup(SAXParser.ROLE);
parser.parse(this.inputSource, super.xmlConsumer);
}
} catch (IOException e) {
getLogger().error("StreamGenerator.generate()", e);
throw new ResourceNotFoundException("StreamGenerator could not find resource", e);
} catch (SAXException e) {
getLogger().error("StreamGenerator.generate()", e);
throw(e);
} catch (Exception e) {
getLogger().error("Could not get parser", e);
throw new ProcessingException("Exception in StreamGenerator.generate()", e);
} finally {
this.manager.release( parser);
}
}
i will to send the XmlObject1 and XmlObject to Parellel Pipeline
but i don'T know how?
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