assertFalse(getMap().entrySet().iterator().hasNext());
  }

  @MapFeature.Require({FAILS_FAST_ON_CONCURRENT_MODIFICATION, SUPPORTS_REMOVE})
  @CollectionSize.Require(SEVERAL)
  public void testClearConcurrentWithEntrySetIteration() {
    try {
      Iterator<Entry<K, V>> iterator = getMap().entrySet().iterator();
      getMap().clear();
      iterator.next();
      fail("Expected ConcurrentModificationException");

	}
	return ret
}

func (r Iterator[T]) Map(f func(T) any) Iterator[any] {
	return MakeIterator(r.HasNext, func() any {
		return f(r.Next())
	})
}

func (r Iterator[T]) HasNext() bool {
	return r.IsHasNext()
}

func (r Iterator[T]) Next() T {
	return r.GetNext()
}

func MakeIterator[T any](has func() bool, next func() T) Iterator[T] {
	return Iterator[T]{
		IsHasNext: has,
		GetNext:   next,
	}

      @Override
      public Iterator<T> iterator() {
        if (iterable instanceof List) {
          final List<T> list = (List<T>) iterable;
          int toSkip = Math.min(list.size(), numberToSkip);
          return list.subList(toSkip, list.size()).iterator();
        }
        final Iterator<T> iterator = iterable.iterator();

        Iterators.advance(iterator, numberToSkip);

        /*

    Iterator<String> iterator = list.iterator();
    assertTrue(iterator.hasNext());
    assertEquals("1", iterator.next());
    assertTrue(iterator.hasNext());
    assertEquals("2", iterator.next());
    assertTrue(iterator.hasNext());
    assertEquals("3", iterator.next());
    assertTrue(iterator.hasNext());
    assertEquals("4", iterator.next());
    assertFalse(iterator.hasNext());

    Iterator<String> iterator = list.iterator();
    assertTrue(iterator.hasNext());
    assertEquals("1", iterator.next());
    assertTrue(iterator.hasNext());
    assertEquals("2", iterator.next());
    assertTrue(iterator.hasNext());
    assertEquals("3", iterator.next());
    assertTrue(iterator.hasNext());
    assertEquals("4", iterator.next());
    assertFalse(iterator.hasNext());

    } else if (isEmpty()) {
      return true;
    }

    if (SortedIterables.hasSameComparator(comparator, that)) {
      Iterator<?> otherIterator = that.iterator();
      try {
        Iterator<E> iterator = iterator();
        while (iterator.hasNext()) {
          Object element = iterator.next();
          Object otherElement = otherIterator.next();

  public void testEntrySet_iteratorRemovePropagates() {
    Iterator<Multiset.Entry<E>> iterator = getMultiset().entrySet().iterator();
    assertTrue(
        "non-empty multiset.entrySet() iterator.hasNext() returned false", iterator.hasNext());
    assertEquals(
        "multiset.entrySet() iterator.next() returned incorrect entry",
        Multisets.immutableEntry(e0(), 1),
        iterator.next());
    assertFalse(

        assertNotNull(set);
        assertEquals(2, set.size());
        Iterator<Entry<String, String>> iterator = set.iterator();
        assertNotNull(iterator);
        assertTrue(iterator.hasNext());
        assertTrue(iterator.hasNext());
        Entry<String, String> entry = iterator.next();
        assertNotNull(entry);
        entry = iterator.next();
        assertNotNull(entry);

        iterator.add('d')

        then:
        iterator.next() == 'b'
        list == ['a', 'd', 'b', 'c']
    }

    def "fires event when element added using ListIterator"() {
        given:
        Action<String> action = Mock()
        list.addAll(['a', 'b', 'c'])
        list.whenObjectAdded(action)

        when:
        def iterator = list.listIterator()
        iterator.next()

import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.Iterator;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * An iterator which forwards all its method calls to another iterator. Subclasses should override
 * one or more methods to modify the behavior of the backing iterator as desired per the <a
 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *