greeting.setTone(Tone.FRIENDLY);
final SubgreetingsRequestBuilders builders = new SubgreetingsRequestBuilders(requestOptions);
//POST
CreateIdRequest<Long, Greeting> createRequest = builders.create().input(greeting).build();
Response<IdResponse<Long>> response = REST_CLIENT.sendRequest(createRequest).getResponse();
Assert.assertNull(response.getHeader(RestConstants.HEADER_CONTENT_TYPE));
long id = response.getEntity().getId();
@SuppressWarnings("deprecation")
String stringId = response.getId();