@SuppressWarnings("unchecked")
    LoadingValueReference<Object, Object> valueReference =
        (LoadingValueReference) newEntry.getValueReference();
    assertFalse(valueReference.futureValue.isDone());
    startSignal.countDown();

    try {
      doneSignal.await();
    } catch (InterruptedException e) {
      throw new RuntimeException(e);
    }

    map.cleanUp(); // force notifications

    @SuppressWarnings("unchecked")
    LoadingValueReference<Object, Object> valueReference =
        (LoadingValueReference) newEntry.getValueReference();
    assertFalse(valueReference.futureValue.isDone());
    startSignal.countDown();

    try {
      doneSignal.await();
    } catch (InterruptedException e) {
      throw new RuntimeException(e);
    }

    map.cleanUp(); // force notifications

      if (loadingValueReference == null) {
        return null;
      }

      ListenableFuture<V> result = loadAsync(key, hash, loadingValueReference, loader);
      if (result.isDone()) {
        try {
          return Uninterruptibles.getUninterruptibly(result);
        } catch (Throwable t) {
          // don't let refresh exceptions propagate; error was already logged
        }
      }