QName requestMessage = new QName(targetNamespace, method.getOperationName());
ArrayList<ParameterImpl> bodyParams = new ArrayList<ParameterImpl>();
ArrayList<ParameterImpl> headerParams = new ArrayList<ParameterImpl>();
splitParameters(bodyParams, headerParams, method.getRequestParameters());
SOAPBinding soapBinding = method.getBinding();
operation.soap12Operation().soapAction(soapBinding.getSOAPAction());
// input
TypedXmlWriter input = operation.input();
extension.addBindingOperationInputExtension(input, method);
com.sun.xml.internal.ws.wsdl.writer.document.soap12.BodyType body = input._element(com.sun.xml.internal.ws.wsdl.writer.document.soap12.Body.class);