// block1.addAttribute("xsi:type", "xsd:string", null);
// block1.addChild(omfactory.createText("string"));
// // header.addChild(headerChild);
// header.addChild(block1); m0:echoMeStructRequest xsi:type="m1:echoMeStructRequest
SOAPHeaderBlock block2 = header.addHeaderBlock("echoMeStructRequest", ns1);
block2.addAttribute("xsi:type", "hns:echoMeStructRequest", null);
OMElement h2Val1 = omfactory.createOMElement("varString", null);
h2Val1.addAttribute("xsi:type", "xsd:string", null);
h2Val1.addChild(omfactory.createText("string"));