public SOAPEnvelope getEchoSoapEnvelope() {
SOAPFactory omfactory = OMAbstractFactory.getSOAP11Factory();
SOAPEnvelope reqEnv = omfactory.createSOAPEnvelope();
OMNamespace namespace = reqEnv.declareNamespace("http://schemas.xmlsoap.org/soap/envelope/", "soapenv");
OMNamespace namespace0 = reqEnv.declareNamespace("http://schemas.xmlsoap.org/wsdl/", "xmlns");
OMNamespace namespace1 = reqEnv.declareNamespace("http://schemas.xmlsoap.org/wsdl/soap/", "soap");
OMNamespace namespace2 = reqEnv.declareNamespace("http://www.w3.org/2001/XMLSchema", "xsd");
OMNamespace namespace3 = reqEnv.declareNamespace("http://schemas.xmlsoap.org/soap/encoding/", "SOAP-ENC");
OMNamespace namespace4 = reqEnv.declareNamespace("http://soapinterop.org/", "tns");
OMNamespace namespace5 = reqEnv.declareNamespace("http://soapinterop.org/xsd", "s");
OMNamespace namespace6 = reqEnv.declareNamespace("http://schemas.xmlsoap.org/wsdl/", "wsdl");
reqEnv.declareNamespace("http://www.w3.org/2001/XMLSchema-instance","xsi");
OMElement operation = omfactory.createOMElement("echo2DStringArray", "http://soapinterop.org/", null);
SOAPBody body = omfactory.createSOAPBody(reqEnv);
body.addChild(operation);