@Test
public void testSubmitFailingCallableException_withExecutionCallback() throws ExecutionException, InterruptedException {
IExecutorService service = client.getExecutorService(randomString());
final CountDownLatch latch = new CountDownLatch(1);
service.submit(new FailingCallable(), new ExecutionCallback<String>() {
@Override
public void onResponse(String response) {
}
@Override