ImmutableSet<C> columnSpace) {
    Map<R, Integer> rowIndex = Maps.indexMap(rowSpace);
    Map<R, Map<C, V>> rows = Maps.newLinkedHashMap();
    for (R row : rowSpace) {
      rows.put(row, new LinkedHashMap<C, V>());
    }
    Map<C, Map<R, V>> columns = Maps.newLinkedHashMap();
    for (C col : columnSpace) {
      columns.put(col, new LinkedHashMap<R, V>());
    }
    int[] cellRowIndices = new int[cellList.size()];

  public static class ImmutableBiMapCopyOfGenerator extends TestStringBiMapGenerator {
    @Override
    protected BiMap<String, String> create(Entry<String, String>[] entries) {
      Map<String, String> builder = Maps.newLinkedHashMap();
      for (Entry<String, String> entry : entries) {
        builder.put(entry.getKey(), entry.getValue());
      }
      return ImmutableBiMap.copyOf(builder);
    }
  }

          @Override
          public TreeMap<Integer, Character> get() {
            return Maps.newTreeMap();
          }
        };
    Map<String, Map<Integer, Character>> backingMap = Maps.newLinkedHashMap();
    Table<String, Integer, Character> table = Tables.newCustomTable(backingMap, factory);
    populate(table, data);
    return table;
  }

  public void testRowKeySetOrdering() {

  public static class ImmutableBiMapCopyOfGenerator extends TestStringBiMapGenerator {
    @Override
    protected BiMap<String, String> create(Entry<String, String>[] entries) {
      Map<String, String> builder = Maps.newLinkedHashMap();
      for (Entry<String, String> entry : entries) {
        builder.put(entry.getKey(), entry.getValue());
      }
      return ImmutableBiMap.copyOf(builder);
    }
  }

  }

  @SuppressWarnings("unchecked")
  ForwardingImmutableMap(boolean throwIfDuplicateKeys, Entry<? extends K, ? extends V>... entries) {
    Map<K, V> delegate = Maps.newLinkedHashMap();
    for (Entry<? extends K, ? extends V> entry : entries) {
      K key = checkNotNull(entry.getKey());
      V previous = delegate.put(key, checkNotNull(entry.getValue()));

          @Override
          public TreeMap<Integer, Character> get() {
            return Maps.newTreeMap();
          }
        };
    Map<String, Map<Integer, Character>> backingMap = Maps.newLinkedHashMap();
    Table<String, Integer, Character> table = Tables.newCustomTable(backingMap, factory);
    populate(table, data);
    return table;
  }

  public void testRowKeySetOrdering() {

      throw new UncheckedExecutionException(e.getCause());
    }
  }

  @Override
  public ImmutableMap<K, V> getAll(Iterable<? extends K> keys) throws ExecutionException {
    Map<K, V> result = Maps.newLinkedHashMap();
    for (K key : keys) {
      if (!result.containsKey(key)) {
        result.put(key, get(key));
      }
    }
    return ImmutableMap.copyOf(result);
  }

  @Override

      throw new UncheckedExecutionException(e.getCause());
    }
  }

  @Override
  public ImmutableMap<K, V> getAll(Iterable<? extends K> keys) throws ExecutionException {
    Map<K, V> result = Maps.newLinkedHashMap();
    for (K key : keys) {
      if (!result.containsKey(key)) {
        result.put(key, get(key));
      }
    }
    return ImmutableMap.copyOf(result);
  }

  @Override

    assertEquals("", j.join(ImmutableMap.of()));
    assertEquals(":", j.join(ImmutableMap.of("", "")));

    Map<@Nullable String, @Nullable String> mapWithNulls = Maps.newLinkedHashMap();
    mapWithNulls.put("a", null);
    mapWithNulls.put(null, "b");

    try {
      j.join(mapWithNulls);
      fail();
    } catch (NullPointerException expected) {
    }

    assertEquals("", j.join(ImmutableMap.of()));
    assertEquals(":", j.join(ImmutableMap.of("", "")));

    Map<@Nullable String, @Nullable String> mapWithNulls = Maps.newLinkedHashMap();
    mapWithNulls.put("a", null);
    mapWithNulls.put(null, "b");

    try {
      j.join(mapWithNulls);
      fail();
    } catch (NullPointerException expected) {
    }