// Test with null
// Note that the response will be an empty array because
// the JAXB bean will never represent List<String> as a null. This is expected.
List<String> request3 = null;
List<String> response3 = proxy.echoIndexedStringArray(request3);
assertTrue(response3 != null && response3.size() == 0);
// Test sending Hello null World
// Note that the null is preserved and the request and response
// are the same..note that this is different than the xsd:list processing (see testStringList above)