* elements in {@code a}, followed by the elements in {@code b}, followed by the elements in
   * {@code c}. The source iterators are not polled until necessary.
   *
   * <p>The returned iterator supports {@code remove()} when the corresponding input iterator
   * supports it.
   */
  public static <T extends @Nullable Object> Iterator<T> concat(

      }

      int oldCount = values.size();
      if (occurrences >= oldCount) {
        values.clear();
      } else {
        Iterator<V> iterator = values.iterator();
        for (int i = 0; i < occurrences; i++) {
          iterator.next();
          iterator.remove();
        }
      }
      return oldCount;
    }

    @Override
    public void clear() {
      multimap.clear();

  }

  public void testSize1() {
    Iterator<Integer> iterator = singleton(0).iterator();
    assertEquals(1, Iterators.size(iterator));
  }

  public void testSize_partiallyConsumed() {
    Iterator<Integer> iterator = asList(1, 2, 3, 4, 5).iterator();
    iterator.next();
    iterator.next();
    assertEquals(3, Iterators.size(iterator));
  }

    set("b", "b1", "b2")
    val iterator = cache.snapshots()
    cache.remove("b")
    iterator.next().use {
      assertThat(it.key()).isEqualTo("a")
    }
    assertThat(iterator.hasNext()).isFalse()
  }

  @Test
  fun iteratorRemove() {
    set("a", "a1", "a2")
    val iterator = cache.snapshots()
    val a = iterator.next()
    a.close()
    iterator.remove()

        () -> {
          Iterator<String> iterator = values.iterator();
          iterator.next();
          iterator.remove();
        });

    Set<Entry<Integer, String>> entries = unmod.entrySet();
    assertThrows(
        UnsupportedOperationException.class,
        () -> {
          Iterator<Entry<Integer, String>> iterator = entries.iterator();
          iterator.next();

    }

    @Override
    public boolean isEmpty() {
      synchronized (mutex) {
        return delegate().isEmpty();
      }
    }

    @Override
    public Iterator<E> iterator() {
      return delegate().iterator(); // manually synchronized
    }

    @Override
    public boolean remove(@Nullable Object o) {
      synchronized (mutex) {
        return delegate().remove(o);
      }
    }

    }

    @Override
    public boolean isEmpty() {
      synchronized (mutex) {
        return delegate().isEmpty();
      }
    }

    @Override
    public Iterator<E> iterator() {
      return delegate().iterator(); // manually synchronized
    }

    @Override
    public Spliterator<E> spliterator() {
      synchronized (mutex) {
        return delegate().spliterator();
      }
    }

            }
        }

        // We need to locate the top level project which may be pointed at using
        // the -f/--file option.  However, the command line isn't parsed yet, so
        // we need to iterate through the args to find it and act upon it.
        Path topDirectory = fileSystem.getPath(cliRequest.workingDirectory);
        boolean isAltFile = false;
        for (String arg : cliRequest.args) {

  @Override
  public Set<Entry<K, V>> entrySet() {
    Set<Entry<K, V>> es = entrySet;
    return (es != null) ? es : (entrySet = new EntrySet());
  }

  // Iterator Support

  abstract class HashIterator<T> implements Iterator<T> {

    int nextSegmentIndex;
    int nextTableIndex;
    @Nullable Segment<K, V, E, S> currentSegment;
    @Nullable AtomicReferenceArray<E> currentTable;

        ModelBuildingRequest importRequest = null;

        List<DependencyManagement> importMgmts = null;

        for (Iterator<Dependency> it = depMgmt.getDependencies().iterator(); it.hasNext(); ) {
            Dependency dependency = it.next();

            if (!"pom".equals(dependency.getType()) || !"import".equals(dependency.getScope())) {
                continue;