data.incrementAndGet(new Handler<AsyncResult<Long>>() {
@Override
public void handle(AsyncResult<Long> result) {
assertTrue(result.succeeded());
assertTrue(result.result() == 1);
data.increment(new Handler<AsyncResult<Void>>() {
@Override
public void handle(AsyncResult<Void> result) {
assertTrue(result.succeeded());
data.get(new Handler<AsyncResult<Long>>() {
@Override