argument.setElem1("Hello Milestone-" + idx);
argument.setElem2("Bonjour-" + idx);
argument.setElem3(idx);
retVal = null;
retVal = greeter.sendReceiveData(argument);
assertNotNull("no response received from service", retVal);
assertTrue(argument.getElem1().equals(retVal.getElem1()));
assertTrue(argument.getElem2().equals(retVal.getElem2()));
assertTrue(argument.getElem3() == retVal.getElem3());