for (int i = 0; i < startIndex; i++) {
        previousElements.push(nextElements.pop());
      }
    }

    @Override
    public void add(E e) {
      if (!features.contains(IteratorFeature.SUPPORTS_ADD)) {
        throw PermittedMetaException.UOE;
      }

      previousElements.push(e);
      stackWithLastReturnedElementAtTop = null;
    }

    @Override

    try {
      new NullPointerTester().testMethodParameter(new OneArg(), method, 0);
    } catch (AssertionFailedError expected) {
      assertThat(expected.getMessage()).contains("index 0");
      assertThat(expected.getMessage()).contains("[null]");
      foundProblem = true;
    }
    assertTrue("Should report error when different exception is thrown", foundProblem);
  }

      builder.add(-1);
      Object[] prevArray = null;
      for (int i = 0; i < 10; i++) {
        ImmutableSet<Integer> prevBuilt = builder.build();
        builder.add(i);
        assertFalse(prevBuilt.contains(i));
        assertNotSame(builder.contents, prevArray);
        prevArray = builder.contents;
      }
    }
  }

  public void testCreation_arrayOfArray() {
    String[] array = new String[] {"a"};

            KeyPresentBehavior.ANY_PRESENT,
            KeyAbsentBehavior.NEXT_LOWER);
    if (index == -1) {
      return null;
    } else {
      Range<K> range = ranges.get(index);
      return range.contains(key) ? values.get(index) : null;
    }
  }

  @Override
  @CheckForNull
  public Entry<Range<K>, V> getEntry(K key) {
    int index =
        SortedLists.binarySearch(
            ranges,

    }
  }

  /** constructor with empty array has size 0 and contains no elements */
  public void testConstructorEmptyArray() {
    AtomicDoubleArray aa = new AtomicDoubleArray(new double[0]);
    assertEquals(0, aa.length());
    assertThrows(IndexOutOfBoundsException.class, () -> aa.get(0));
  }

  /** constructor with length zero has size 0 and contains no elements */
  public void testConstructorZeroLength() {

        assertTrue(test.asMapOfRanges().entrySet().contains(entry));
      }
    }
    for (Range<Integer> range : test.asMapOfRanges().keySet()) {
      assertFalse(range.isEmpty());
    }
  }

  private static void putModel(Map<Integer, Integer> model, Range<Integer> range, int value) {
    for (int i = MIN_BOUND - 1; i <= MAX_BOUND + 1; i++) {
      if (range.contains(i)) {
        model.put(i, value);
      }

    List<IntegerDiv10> original = ImmutableList.of(three, eleven, twelve, twenty);

    Multiset<IntegerDiv10> copy = ImmutableSortedMultiset.copyOf(original);
    assertTrue(copy.contains(eleven));
    assertTrue(copy.contains(twelve));
  }

    List<IntegerDiv10> original = ImmutableList.of(three, eleven, twelve, twenty);

    Multiset<IntegerDiv10> copy = ImmutableSortedMultiset.copyOf(original);
    assertTrue(copy.contains(eleven));
    assertTrue(copy.contains(twelve));
  }

     * We test that nullSingleton.retainAll(disjointList) does NOT throw a
     * NullPointerException when disjointList does not, so we can't use
     * MinimalCollection, which throws NullPointerException on calls to
     * contains(null).
     */
    List<E> disjointList = Arrays.asList(e3(), e4());
    disjoint = new Target(disjointList, "disjoint");
    superset = new Target(MinimalCollection.of(e0(), e1(), e2(), e3(), e4()), "superset");

        @Override
        @J2ktIncompatible // serialization
        Object writeReplace() {
          return super.writeReplace();
        }
      };
    }

    @Override
    public boolean contains(@CheckForNull Object object) {
      if (object instanceof Entry) {
        Entry<?, ?> entry = (Entry<?, ?>) object;
        Object k = entry.getKey();
        Object v = entry.getValue();