reqEnv.declareNamespace("http://soapinterop.org/xsd", "s");
reqEnv.declareNamespace("http://soapinterop.org/", "m");
OMNamespace ns1 =reqEnv.declareNamespace("http://soapinterop.org", "m1");
reqEnv.declareNamespace("http://schemas.xmlsoap.org/wsdl/soap12/","soap12");
SOAPHeader header = omfactory.createSOAPHeader(reqEnv);
OMNamespace hns = reqEnv.declareNamespace("http://soapinterop.org/echoheader/", "hns"); //xmlns:m0="http://soapinterop.org/echoheader/
// SOAPHeaderBlock block1 = header.addHeaderBlock("echoMeStringRequest", hns);
// block1.addAttribute("xsi:type", "xsd:string", null);
// block1.addChild(omfactory.createText("string"));
// // header.addChild(headerChild);