Re: Null Pointer from org.apache.axis.message.MessageElement.addTextNode

[Chris Mannion]

I think the error is occuring in my client while it is constructing the message to send, TCPmon doesn't pick anything up as I don't think the client gets as far as sending anything. Chris Mannion IT Junction 020 8452 4274 ----- Original Message ----- From: jayachandra To: axis-user@ws.apache.org Sent: Tuesday, September 06, 2005 7:31 AM Subject: Re: Null Pointer from org.apache.axis.message.MessageElement.addTextNode Did you try verifying what is being sent on wire to the server using TCPMon? Start TCPmon on some port and redirect the content to the tomcat host and port. Make sure you give tcpmon port in the portQName string rather than the tomcat port   Assuming I would like to start tcpmon on 9090 and have my tomcat on local machine 8080. I'd start tcpmon as java org.apache.axis.utils.tcpmon 9090 localhost 8080   HTH Jayachandra   On 9/5/05, Chris Mannion <[EMAIL PROTECTED]> wrote: Hi   I'm getting a null pointer exception on invoking a call object.  This happens for any call with parameters set, though I'm certain, from having debugged the code, that it is not 'caused by passing nulls for parameter values, the exception occurs even on calls where all the values are present and correctly typed.  The stack trace for the error is below   AxisFault  faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException  faultSubcode:  faultString: java.lang.NullPointerException  faultActor:  faultNode:  faultDetail:  { http://xml.apache.org/axis/}stackTrace:java.lang.NullPointerException  at org.apache.axis.message.MessageElement.addTextNode(MessageElement.java:1396)  at org.apache.axis.message.SOAPHandler.addTextNode(SOAPHandler.java :148)  at org.apache.axis.message.SOAPHandler.endElement(SOAPHandler.java:112)  at org.apache.axis.encoding.DeserializationContext.endElement(DeserializationContext.java:1087)  at org.apache.xerces.parsers.AbstractSAXParser.endElement (Unknown Source)  at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)  at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.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 javax.xml.parsers.SAXParser.parse(Unknown Source)  at org.apache.axis.encoding.DeserializationContext.parse (DeserializationContext.java:227)  at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)  at org.apache.axis.Message.getSOAPEnvelope(Message.java:424)  at org.apache.axis.handlers.soap.MustUnderstandChecker.invoke (MustUnderstandChecker.java:62)  at org.apache.axis.client.AxisClient.invoke(AxisClient.java:206)  at org.apache.axis.client.Call.invokeEngine(Call.java:2765)  at org.apache.axis.client.Call.invoke(Call.java:2748)  at org.apache.axis.client.Call.invoke(Call.java:2424)  at org.apache.axis.client.Call.invoke(Call.java:2347)  at org.apache.axis.client.Call.invoke(Call.java:1804)  at govConnect.WebServiceTools.call(WebServiceTools.java :130)  at ep.callWS.service(callWS.java:65)  at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)  at org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java:419)  at org.apache.catalina.servlets.InvokerServlet.doGet (InvokerServlet.java:133)  at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)  at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)  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:117)  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:793)  at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:702)  at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:571)  at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:644)  at java.lang.Thread.run(Thread.java:536)    {http://xml.apache.org/axis/}hostname:server   java.lang.NullPointerException  at org.apache.axis.AxisFault.makeFault(AxisFault.java:101)  at org.apache.axis.client.AxisClient.invoke(AxisClient.java:216)  at org.apache.axis.client.Call.invokeEngine (Call.java:2765)  at org.apache.axis.client.Call.invoke(Call.java:2748)  at org.apache.axis.client.Call.invoke(Call.java:2424)  at org.apache.axis.client.Call.invoke(Call.java:2347)  at org.apache.axis.client.Call.invoke (Call.java:1804)  at govConnect.WebServiceTools.call(WebServiceTools.java:130)  at ep.callWS.service(callWS.java:65)  at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)  at org.apache.catalina.servlets.InvokerServlet.serveRequest (InvokerServlet.java:419)  at org.apache.catalina.servlets.InvokerServlet.doGet(InvokerServlet.java:133)  at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)  at javax.servlet.http.HttpServlet.service (HttpServlet.java:810)  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:117)  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:793)  at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:702)  at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:571)  at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:644)  at java.lang.Thread.run(Thread.java:536) Caused by: java.lang.NullPointerException  at org.apache.axis.message.MessageElement.addTextNode(MessageElement.java:1396)  at org.apache.axis.message.SOAPHandler.addTextNode(SOAPHandler.java:148)  at org.apache.axis.message.SOAPHandler.endElement (SOAPHandler.java:112)  at org.apache.axis.encoding.DeserializationContext.endElement(DeserializationContext.java:1087)  at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)  at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement (Unknown Source)  at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.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 javax.xml.parsers.SAXParser.parse(Unknown Source)  at org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.java:227)  at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java :696)  at org.apache.axis.Message.getSOAPEnvelope(Message.java:424)  at org.apache.axis.handlers.soap.MustUnderstandChecker.invoke(MustUnderstandChecker.java:62)  at org.apache.axis.client.AxisClient.invoke(AxisClient.java :206)  ... 36 more   The code generating the error is as follows   ServiceFactory serviceFactory = ServiceFactory.newInstance(); webService = serviceFactory.createService(wsdlUrl, serviceQName); ... Call opCall = webService.createCall(portQName, operationName); ... return opCall.invoke(values);   where values is an object array of correctly typed parameter values.  Does anyone have any hints as to what the root of this problem might be? Chris Mannion IT Junction 020 8452 4274 -- -- Jaya