I have a document style web service with a problem. I'm obviously doing something wrong but I can't figure out what is wrong. Whenever the service is invoked I get a org.jboss.ws.WSException stating "javaType cannot be null". Why does this happen? The service implements this interface: package decs2.pi; | | public interface ProcessInitiator extends java.rmi.Remote | { | public javax.xml.soap.SOAPElement invoke(javax.xml.soap.SOAPElement msg) throws java.rmi.RemoteException; | } The wsdl description of the service is: <definitions name='ProcessInitiatorService' targetNamespace='http://decs2/jaws' xmlns='http://schemas.xmlsoap.org/wsdl/' xmlns:decs2='http://decs2/jaws' xmlns:soap='http://schemas.xmlsoap.org/wsdl/soap/' xmlns:typeNS='http://decs2/jaws/types'> | <types> | <schema targetNamespace='http://decs2/jaws/types' xmlns='http://www.w3.org/2001/XMLSchema'> | <element name='subtractProcessOp' type='typeNS:subtractProcessOpType'/> | <complexType name='subtractProcessOpType'> | <sequence> | <element name='x' type='int'></element> | <element name='y' type='int'></element> | </sequence> | </complexType> | <element name='subtractProcessOpResponse' type='typeNS:subtractProcessOpResponseType'/> | <complexType name='subtractProcessOpResponseType'> | <sequence> | <element name='result' type='int'></element> | </sequence> | </complexType> | </schema> | </types> | <message name='INPUT'> | <part element='typeNS:subtractProcessOp' name='parameters'/> | </message> | <message name='OUTPUT'> | <part element='typeNS:subtractProcessOpResponse' name='result'/> | </message> | <portType name='ProcessInitiator'> | <operation name='subtractProcessOp'> | <input message='decs2:INPUT'/> | <output message='decs2:OUTPUT'/> | </operation> | </portType> | <binding name='ProcessInitiatorBinding' type='decs2:ProcessInitiator'> | <soap:binding style='document' transport='http://schemas.xmlsoap.org/soap/http'/> | <operation name='subtractProcessOp'> | <soap:operation soapAction=''/> | <input> | <soap:body use='literal'/> | </input> | <output> | <soap:body use='literal'/> | </output> | </operation> | </binding> | <service name='ProcessInitiatorService'> | <port binding='decs2:ProcessInitiatorBinding' name='ProcessInitiatorPort'> | <soap:address location='REPLACE_WITH_ACTUAL_URL'/> | </port> | </service> | </definitions> And the jaxrpc-mapping.xml is: <java-wsdl-mapping version='1.1' xmlns='http://java.sun.com/xml/ns/j2ee' xmlns:decs2='http://decs2/jaws'> | <package-mapping> | <package-type>decs2</package-type> | <namespaceURI>http://decs2/jaws/types</namespaceURI> | </package-mapping> | | <java-xml-type-mapping> | <java-type>javax.xml.soap.SOAPElement</java-type> | <root-type-qname xmlns:typeNS='http://decs2/jaws/types'>typeNS:subtractProcessOpType</root-type-qname> | <qname-scope>complexType</qname-scope> | </java-xml-type-mapping> | | <java-xml-type-mapping> | <java-type>javax.xml.soap.SOAPElement</java-type> | <root-type-qname xmlns:typeNS='http://decs2/jaws/types'>typeNS:subtractProcessOpResponseType</root-type-qname> | <qname-scope>complexType</qname-scope> | </java-xml-type-mapping> | | <service-interface-mapping> | <service-interface>decs2.ProcessInitiatorService</service-interface> | <wsdl-service-name>decs2:ProcessInitiatorService</wsdl-service-name> | <port-mapping> | <port-name>ProcessInitiatorPort</port-name> | <java-port-name>ProcessInitiatorPort</java-port-name> | </port-mapping> | </service-interface-mapping> | | <service-endpoint-interface-mapping> | <service-endpoint-interface>decs2.pi.ProcessInitiator</service-endpoint-interface> | <wsdl-port-type>decs2:ProcessInitiator</wsdl-port-type> | <wsdl-binding>decs2:ProcessInitiatorBinding</wsdl-binding> | <service-endpoint-method-mapping> | <java-method-name>invoke</java-method-name> | <wsdl-operation>subtractProcessOp</wsdl-operation> | <wrapped-element/> | <method-param-parts-mapping> | <param-position>0</param-position> | <param-type>javax.xml.soap.SOAPElement</param-type> | <wsdl-message-mapping> | <wsdl-message>decs2:INPUT</wsdl-message> | <wsdl-message-part-name>parameters</wsdl-message-part-name> | <parameter-mode>IN</parameter-mode> | </wsdl-message-mapping> | </method-param-parts-mapping> | <wsdl-return-value-mapping> | <method-return-value>javax.xml.soap.SOAPElement</method-return-value> | <wsdl-message>decs2:OUTPUT</wsdl-message> | <wsdl-message-part-name>result</wsdl-message-part-name> | </wsdl-return-value-mapping> | </service-endpoint-method-mapping> | </service-endpoint-interface-mapping> | </java-wsdl-mapping> Any ideas? Regards Doug View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3970449#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...