if (delegate != null) {
      return delegate.add(object);
    }
    int[] entries = requireEntries();
    @Nullable Object[] elements = requireElements();

    int newEntryIndex = this.size; // current size, and pointer to the entry to be appended
    int newSize = newEntryIndex + 1;
    int hash = smearedHash(object);
    int mask = hashTableMask();
    int tableIndex = hash & mask;

    if (delegate != null) {
      return delegate.add(object);
    }
    int[] entries = requireEntries();
    @Nullable Object[] elements = requireElements();

    int newEntryIndex = this.size; // current size, and pointer to the entry to be appended
    int newSize = newEntryIndex + 1;
    int hash = smearedHash(object);
    int mask = hashTableMask();
    int tableIndex = hash & mask;