// find payload root's localPart or return soap fault with ex message
final Method emtd = ((MethodEndpoint) ep).getMethod();
String localPart = null;
PayloadRoot proot = emtd.getAnnotation(PayloadRoot.class);
if (proot != null) {
localPart = proot.localPart();
} else {
return createFault(messageContext, null, exMsg);
}
// return soap fault with ex message if localPart does not end with