@Override
  SortedMap<R, Map<C, V>> createRowMap() {
    return new RowSortedMap();
  }

  @WeakOuter
  private class RowSortedMap extends RowMap implements SortedMap<R, Map<C, V>> {
    @Override
    public SortedSet<R> keySet() {
      return (SortedSet<R>) super.keySet();
    }

    @Override
    SortedSet<R> createKeySet() {
      return new Maps.SortedKeySet<>(this);
    }

    @Override

      this.delegate = delegate;
      this.mutex = mutex;
    }

    @Override
    protected Entry<K, V> delegate() {
      return delegate;
    }

    @Override
    public boolean equals(@Nullable Object object) {
      assertTrue(Thread.holdsLock(mutex));
      return super.equals(object);
    }

    @Override
    public K getKey() {
      assertTrue(Thread.holdsLock(mutex));

  AbstractRangeSet() {}

  @Override
  public boolean contains(C value) {
    return rangeContaining(value) != null;
  }

  @Override
  @CheckForNull
  public abstract Range<C> rangeContaining(C value);

  @Override
  public boolean isEmpty() {
    return asRanges().isEmpty();
  }

  @Override
  public void add(Range<C> range) {

  /** Constructor for use by subclasses. */
  protected ForwardingDeque() {}

  @Override
  protected abstract Deque<E> delegate();

  @Override
  public void addFirst(@ParametricNullness E e) {
    delegate().addFirst(e);
  }

  @Override
  public void addLast(@ParametricNullness E e) {
    delegate().addLast(e);
  }

  @Override
  public Iterator<E> descendingIterator() {
    return delegate().descendingIterator();

                  @Override
                  protected SortedSet<String> create(String[] elements) {
                    TreeBasedTable<String, Integer, Character> table = TreeBasedTable.create();
                    populateForRowKeySet(table, elements);
                    return table.rowKeySet();
                  }

                  @Override

                  @Override
                  protected SortedSet<String> create(String[] elements) {
                    TreeBasedTable<String, Integer, Character> table = TreeBasedTable.create();
                    populateForRowKeySet(table, elements);
                    return table.rowKeySet();
                  }

                  @Override

    @Override
    public String getProjectName() {
        return null;
    }

    @Override
    public String getProjectPrefix() {
        return null;
    }

    @Override
    public String getGenerationGapBasePrefix() {
        return null;
    }

    @Override
    public DBDef getCurrentDBDef() {
        return null;
    }

      return (TestSortedMapGenerator<K, V>) delegate;
    }

    @Override
    public Entry<K, V> belowSamplesLesser() {
      return delegate().aboveSamplesGreater();
    }

    @Override
    public Entry<K, V> belowSamplesGreater() {
      return delegate().aboveSamplesLesser();
    }

    @Override
    public Entry<K, V> aboveSamplesLesser() {
      return delegate().belowSamplesGreater();

    @Override
    public boolean hasPrevious() {
      return !previousElements.isEmpty();
    }

    @Override
    public E next() {
      return transferElement(nextElements, previousElements);
    }

    @Override
    public int nextIndex() {
      return previousElements.size();
    }

    @Override
    public E previous() {
      return transferElement(previousElements, nextElements);
    }

    @Override
    protected int readSetupWireFormat ( byte[] buffer, int bufferIndex, int len ) {
        return 0;
    }


    @Override
    protected int readParametersWireFormat ( byte[] buffer, int bufferIndex, int len ) {
        return 0;
    }


    @Override
    protected int readDataWireFormat ( byte[] buffer, int bufferIndex, int len ) {
        return 0;
    }


    @Override