@Override
  protected Table<String, Integer, Character> create(@Nullable Object... data) {
    Supplier<TreeMap<Integer, Character>> factory =
        new Supplier<TreeMap<Integer, Character>>() {
          @Override
          public TreeMap<Integer, Character> get() {
            return Maps.newTreeMap();
          }
        };
    Map<String, Map<Integer, Character>> backingMap = Maps.newLinkedHashMap();

        diff2.toString());
  }

  private static final SortedMap<Integer, Integer> SORTED_EMPTY = Maps.newTreeMap();
  private static final ImmutableSortedMap<Integer, Integer> SORTED_SINGLETON =
      ImmutableSortedMap.of(1, 2);

  public void testMapDifferenceOfSortedMapIsSorted() {
    Map<Integer, Integer> map = SORTED_SINGLETON;
    MapDifference<Integer, Integer> difference = Maps.difference(map, EMPTY);

        diff2.toString());
  }

  private static final SortedMap<Integer, Integer> SORTED_EMPTY = Maps.newTreeMap();
  private static final ImmutableSortedMap<Integer, Integer> SORTED_SINGLETON =
      ImmutableSortedMap.of(1, 2);

  public void testMapDifferenceOfSortedMapIsSorted() {
    Map<Integer, Integer> map = SORTED_SINGLETON;
    MapDifference<Integer, Integer> difference = Maps.difference(map, EMPTY);

    ImmutableSetMultimap<String, Integer> multimap =
        new Builder<String, Integer>().put(Maps.immutableEntry("one", 1)).build();
    assertEquals(ImmutableSet.of(1), multimap.get("one"));
  }

  public void testBuilder_withImmutableEntryAndNullContents() {
    Builder<String, Integer> builder = new Builder<>();
    try {
      builder.put(Maps.immutableEntry("one", (Integer) null));
      fail();

    }
  }

  public static void hashtableTestHelper(ImmutableList<Integer> sizes) {
    for (int size : sizes) {
      Builder<Integer, Integer> builder = ImmutableMap.builderWithExpectedSize(size);
      for (int i = 0; i < size; i++) {
        Integer integer = i;
        builder.put(integer, integer);
      }
      ImmutableMap<Integer, Integer> map = builder.build();
      assertEquals(size, map.size());

    // This sample AbstractIterator returns 0 on the first call, 1 on the
    // second, then signals that it's reached the end of the data
    Iterator<Integer> iter =
        new AbstractIterator<Integer>() {
          private int rep;

          @Override
          public @Nullable Integer computeNext() {
            switch (rep++) {
              case 0:
                return 0;
              case 1:
                return 1;

      new SparseImmutableTable<>(CELLS.asList(), ROW_SPACE, COLUMN_SPACE);

  private static final DenseImmutableTable<Character, Integer, String> DENSE =
      new DenseImmutableTable<>(CELLS.asList(), ROW_SPACE, COLUMN_SPACE);

  @Override
  Iterable<ImmutableTable<Character, Integer, String>> getTestInstances() {
    return ImmutableList.<ImmutableTable<Character, Integer, String>>of(SPARSE, DENSE);

    assertFalse(Assignability.of().isAssignable());
    assertTrue(new Assignability<Integer, Integer>() {}.isAssignable());
    assertTrue(new Assignability<Integer, Object>() {}.isAssignable());
    assertFalse(new Assignability<Integer, String>() {}.isAssignable());
    TypeTokenTest.<Number, Integer>assignabilityTestWithTypeVariables();
  }

  public void testPutAndGetInstance() {
    assertNull(map.putInstance(Integer.class, Integer.valueOf(5)));

    Integer oldValue = map.putInstance(Integer.class, Integer.valueOf(7));
    assertEquals(5, (int) oldValue);

    Integer newValue = map.getInstance(Integer.class);
    assertEquals(7, (int) newValue);
    assertEquals(7, (int) map.getInstance(TypeToken.of(Integer.class)));

      extends TestFilteredMultimapGenerator<SetMultimap<String, Integer>>
      implements TestSetMultimapGenerator<String, Integer> {

    abstract SetMultimap<String, Integer> filter(SetMultimap<String, Integer> multimap);

    @Override
    public SetMultimap<String, Integer> create(Object... elements) {
      SetMultimap<String, Integer> multimap = LinkedHashMultimap.create();
      for (Object o : elements) {