# No top level accessor provided for conversion

**URL:** <https://techcommunity.softwareag.com/t/no-top-level-accessor-provided-for-conversion/59139>\
**Category:** Forum\
**Tags:** Former-Crossvision-Products, Service-Orchestrator\
**Created:** [August 16, 2004, 4:57am UTC](https://techcommunity.softwareag.com/t/no-top-level-accessor-provided-for-conversion/59139 "2004-08-16T04:57:52Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![Guest](https://sea1.discourse-cdn.com/techcommunity/user_avatar/techcommunity.softwareag.com/guest/32/75_2.png) [@Guest](https://techcommunity.softwareag.com/u/Guest)\
**Post date:** [August 16, 2004, 4:57am UTC](https://techcommunity.softwareag.com/t/no-top-level-accessor-provided-for-conversion/59139/1 "2004-08-16T04:57:52Z")

</div>

I’m exposing a sequence as a Web Service via the Mediator XML Gateway. I’m able to invoke the sequence correctly, but I get an error when the Gateway receives the response from the sequence. The error I get in the Gateway is:  
  
\<?xml version="1.0" encoding="UTF-8"?\>  
\<soapenv:Envelope xmlns:soapenv=“[http://schemas.xmlsoap.org/soap/envelope/](http://schemas.xmlsoap.org/soap/envelope/)” xmlns:xsd=“[XML Schema](http://www.w3.org/2001/XMLSchema)” xmlns:xsi=“[http://www.w3.org/2001/XMLSchema-instance](http://www.w3.org/2001/XMLSchema-instance)”\>  
 soapenv:Body  
soapenv:Fault  
 soapenv:Server.userException  
 javax.resource.ResourceException: no top level accessor provided for conversion; nested exception is:   
 com.softwareag.fresno.resourceadapter.managed.ManagedAdapterException: no top level accessor provided for conversion  
  
 \<ns1:stackTrace xmlns:ns1=“[http://xml.apache.org/axis/](http://xml.apache.org/axis/)”\>AxisFault  
 faultCode: {[http://schemas.xmlsoap.org/soap/envelope/](http://schemas.xmlsoap.org/soap/envelope/)}Server.userException  
 faultSubcode:   
 faultString: javax.resource.ResourceException: no top level accessor provided for conversion; nested exception is:   
 com.softwareag.fresno.resourceadapter.managed.ManagedAdapterException: no top level accessor provided for conversion  
 faultActor:   
 faultNode:   
 faultDetail:   
  
javax.resource.ResourceException: no top level accessor provided for conversion; nested exception is:   
 com.softwareag.fresno.resourceadapter.managed.ManagedAdapterException: no top level accessor provided for conversion  
 at org.apache.axis.message.SOAPFaultBuilder.createFault(SOAPFaultBuilder.java:260)  
 at org.apache.axis.message.SOAPFaultBuilder.endElement(SOAPFaultBuilder.java:169)  
 at org.apache.axis.encoding.DeserializationContextImpl.endElement(DeserializationContextImpl.java:1015)  
 at org.apache.xerces.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:559)  
 at org.apache.xerces.impl.XMLNamespaceBinder.handleEndElement(XMLNamespaceBinder.java:853)  
 at org.apache.xerces.impl.XMLNamespaceBinder.endElement(XMLNamespaceBinder.java:643)  
 at org.apache.xerces.impl.dtd.XMLDTDValidator.handleEndElement(XMLDTDValidator.java:2978)  
 at org.apache.xerces.impl.dtd.XMLDTDValidator.endElement(XMLDTDValidator.java:918)  
 at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.handleEndElement(XMLDocumentFragmentScannerImpl.java:1145)  
 at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:988)  
 at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1446)  
 at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:333)  
 at org.apache.xerces.parsers.StandardParserConfiguration.parse(StandardParserConfiguration.java:529)  
 at org.apache.xerces.parsers.StandardParserConfiguration.parse(StandardParserConfiguration.java:585)  
 at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:147)  
 at org.apache.xerces.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1148)  
 at javax.xml.parsers.SAXParser.parse(SAXParser.java:345)  
 at org.apache.axis.encoding.DeserializationContextImpl.parse(DeserializationContextImpl.java:242)  
 at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:538)  
 at org.apache.axis.Message.getSOAPEnvelope(Message.java:376)  
 at org.apache.axis.transport.http.HTTPSender.readFromSocket(HTTPSender.java:675)  
 at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:128)  
 at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:71)  
 at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:150)  
 at org.apache.axis.SimpleChain.invoke(SimpleChain.java:120)  
 at org.apache.axis.client.AxisClient.invoke(AxisClient.java:180)  
 at org.apache.axis.client.Call.invokeEngine(Call.java:2564)  
 at org.apache.axis.client.Call.invoke(Call.java:2553)  
 at org.apache.axis.client.Call.invoke(Call.java:1672)  
 at com.softwareag.fresno.webapps.fresno.ConnectorClient.invoke(ConnectorClient.java:340)  
 at com.softwareag.fresno.webapps.fresno.ConnectorClient.invoke(ConnectorClient.java:264)  
 at com.softwareag.fresno.argus.agent.XMLGatewaysAgent.job\_ws\_test\_impl(XMLGatewaysAgent.java:1616)  
 at com.softwareag.fresno.argus.agent.XMLGatewaysAgent.job\_ws\_test(XMLGatewaysAgent.java:1557)  
 at com.softwareag.fresno.argus.agent.XMLGatewaysAgent.getDetail(XMLGatewaysAgent.java:5563)  
 at com.softwareag.systemmanagementhub.base.ArgAgent.dispatchRunMode(ArgAgent.java:195)  
 at com.softwareag.fresno.argus.agent.XMLGatewaysAgent.dispatchRunMode(XMLGatewaysAgent.java:207)  
 at com.softwareag.systemmanagementhub.base.ArgAgent.runAgent(ArgAgent.java:175)  
 at com.softwareag.systemmanagementhub.base.ArgAgent.(ArgAgent.java:144)  
 at com.softwareag.fresno.argus.agent.XMLGatewaysAgent.(XMLGatewaysAgent.java:157)  
 at com.softwareag.fresno.webapps.agentserver.XMLGatewaysServerServlet.XMLGatewaysAgent(XMLGatewaysServerServlet.java:167)  
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)  
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)  
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)  
 at java.lang.reflect.Method.invoke(Method.java:324)  
 at com.softwareag.fresno.webapps.agentserver.GSBaseServlet.dispatch(GSBaseServlet.java:60)  
 at com.softwareag.fresno.webapps.agentserver.GSBaseServlet.doGetOrPost(GSBaseServlet.java:35)  
 at com.softwareag.fresno.webapps.agentserver.GSBaseServlet.doPost(GSBaseServlet.java:26)  
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)  
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)  
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)  
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)  
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)  
 at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)  
 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)  
 at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)  
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)  
 at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)  
 at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)  
 at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)  
 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)  
 at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)  
 at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)  
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)  
 at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)  
 at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)  
 at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)  
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)  
 at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)  
 at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:509)  
 at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)  
 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)  
 at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)  
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)  
 at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)  
 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)  
 at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)  
 at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)  
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594)  
 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)  
 at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)  
 at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)  
 at java.lang.Thread.run(Thread.java:534)  
\</ns1:stackTrace\>  
  
 \</soapenv:Fault\>  
 \</soapenv:Body\>  
\</soapenv:Envelope\>  
  
I’m not sure what the reason for this error is or what I can do to fix it. I know it is relatedt to the output message I defined in the Gateway.  
  
Attached you will find an export of my Gateway Repository. Any suggestions on how to fix the problem will be greatly appreciated.  
  
Regards  
Theo  
[weather.war.zip](https://techcommunity.softwareag.com/uploads/short-url/rchx4HF1TB7w3m2x3ugU6lNjO2U.zip) (5.96 MB)

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<div class="post-metadata">

**Author:** ![Jason](https://avatars.discourse-cdn.com/v4/letter/j/dc4da7/32.png) [@Jason](https://techcommunity.softwareag.com/u/Jason)\
**Post date:** [August 16, 2004, 6:30am UTC](https://techcommunity.softwareag.com/t/no-top-level-accessor-provided-for-conversion/59139/2 "2004-08-16T06:30:31Z")

</div>

Hi Theo,  
  
You input and output message definitions don’t look right. You need to import the message definitions for the Mediator Gateway from a schema or a DTD.   
  
Jason

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<div class="post-metadata">

**Author:** ![Guest](https://sea1.discourse-cdn.com/techcommunity/user_avatar/techcommunity.softwareag.com/guest/32/75_2.png) [@Guest](https://techcommunity.softwareag.com/u/Guest)\
**Post date:** [August 19, 2004, 3:25am UTC](https://techcommunity.softwareag.com/t/no-top-level-accessor-provided-for-conversion/59139/3 "2004-08-19T03:25:25Z")

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Hi Jason,  
  
I have done as you suggested and I made some progress. The messages are sent to the Sequence and I receive the proper response. I have encountered a new problem however. When using XMLSpy to create a SOAP Request, the message is not created properly. The SOAP Request document contains no child nodes, only the empty SOAP Envelope.  
  
The SOAP Request document created from the WSDL file looks as follows:  
  
\<SOAP-ENV:Envelope xmlns:SOAP-ENV=“[http://schemas.xmlsoap.org/soap/envelope/](http://schemas.xmlsoap.org/soap/envelope/)” xmlns:SOAP-ENC=“[http://schemas.xmlsoap.org/soap/encoding/](http://schemas.xmlsoap.org/soap/encoding/)” xmlns:xsi=“[http://www.w3.org/2001/XMLSchema-instance](http://www.w3.org/2001/XMLSchema-instance)” xmlns:xsd=“[XML Schema](http://www.w3.org/2001/XMLSchema)”\>  
SOAP-ENV:Body  
 \<m:InputDocument xmlns:m=“[404](http://www.softwareag.com/connector/)”/\>  
 \</SOAP-ENV:Body\>  
\</SOAP-ENV:Envelope\>  
  
Somehow the input message structure is not mapped in the WSDL file.   
  
Am I doing something wrong when I create the input message for the Gateway? I did import the schema I created for the document into the Gateway in order to create the input message.  
  
Attached you will find the schema I used.  
  
Theo  
[Gateway\_Get\_Info\_By\_Zipcode.xsd](https://techcommunity.softwareag.com/uploads/short-url/wOduOuGVBEabOMoLxHm2bhYCGM6.xsd) (442 Bytes)

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<div class="post-metadata">

**Author:** ![Jason](https://avatars.discourse-cdn.com/v4/letter/j/dc4da7/32.png) [@Jason](https://techcommunity.softwareag.com/u/Jason)\
**Post date:** [August 19, 2004, 4:06am UTC](https://techcommunity.softwareag.com/t/no-top-level-accessor-provided-for-conversion/59139/4 "2004-08-19T04:06:45Z")

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Hi Theo,  
  
Please try this with version 7.2.2  
  
Jason

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**Author:** ![Guest](https://sea1.discourse-cdn.com/techcommunity/user_avatar/techcommunity.softwareag.com/guest/32/75_2.png) [@Guest](https://techcommunity.softwareag.com/u/Guest)\
**Post date:** [August 31, 2004, 10:48pm UTC](https://techcommunity.softwareag.com/t/no-top-level-accessor-provided-for-conversion/59139/5 "2004-08-31T22:48:33Z")

</div>

The problem was not due to the version of the Gateways, but rather to a user error! :rolleyes:  
  
I created the XML schema (which I used to create the Gateway message) from the XML document. This resulted in an “incorrect” definition of the elements within XML schema. Once I changed the XML Schema everything worked fine. Below is an example of what I corrected.  
  
**Incorrect Schema**  
  
\<?xml version="1.0" encoding="UTF-8"?\>  
" TARGET=\_blank\>[http://www.xmlspy.com](http://www.xmlspy.com))–\>  
\<xs:schema elementFormDefault=“qualified” xmlns:xs=“[XML Schema](http://www.w3.org/2001/XMLSchema)”\>  
 \<xs:element name=“Get\_Info\_By\_Zipcode”\>  
xs:complexType  
xs:sequence  
 \<xs:element ref=“Zipcode”/\>  
 \</xs:sequence\>  
 \</xs:complexType\>  
 \</xs:element\>  
 \<xs:element name=“Zipcode”\>  
xs:complexType/  
 \</xs:element\>  
\</xs:schema\>  
  
**Correct Schema**  
  
\<?xml version="1.0" encoding="UTF-8"?\>  
" TARGET=\_blank\>[http://www.xmlspy.com](http://www.xmlspy.com))–\>  
\<xs:schema elementFormDefault=“qualified” xmlns:xs=“[XML Schema](http://www.w3.org/2001/XMLSchema)”\>  
 \<xs:element name=“Get\_Info\_By\_Zipcode”\>  
xs:complexType  
xs:sequence  
 \<xs:element name=“Zipcode” type=“xs:string”/\>  
 \</xs:sequence\>  
 \</xs:complexType\>  
 \</xs:element\>  
\</xs:schema\>  
  
  
Cheers  
Theo

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**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\
**Post date:** [April 2, 2021, 2:39pm UTC](https://techcommunity.softwareag.com/t/no-top-level-accessor-provided-for-conversion/59139/6 "2021-04-02T14:39:40Z")

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