++modCount;
            LoadingValueReference<K, V> loadingValueReference =
                new LoadingValueReference<>(valueReference);
            e.setValueReference(loadingValueReference);
            return loadingValueReference;
          }
        }

        ++modCount;
        LoadingValueReference<K, V> loadingValueReference = new LoadingValueReference<>();
        e = newEntry(key, hash, first);

    ReferenceEntry<Object, Object> newEntry = segment.copyEntry(entry, null);
    table.set(index, newEntry);

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

    try {
      doneSignal.await();

    ReferenceEntry<Object, Object> newEntry = segment.copyEntry(entry, null);
    table.set(index, newEntry);

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

    try {
      doneSignal.await();