}

    @Override
    public boolean isEmpty() {
      return !Iterables.any(unfiltered, predicate);
    }

    @Override
    public Iterator<E> iterator() {
      return Iterators.filter(unfiltered.iterator(), predicate);
    }

    @Override
    public boolean remove(@CheckForNull Object element) {
      return contains(element) && unfiltered.remove(element);
    }

            MapFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION,
            MapFeature.RESTRICTS_KEYS,
            MapFeature.RESTRICTS_VALUES,
            CollectionFeature.SUPPORTS_ITERATOR_REMOVE,
            CollectionFeature.SERIALIZABLE,
            CollectionSize.ANY)
        .suppressing(suppressForCheckedMap())
        .createTestSuite();
  }

  public Test testsForCheckedNavigableMap() {

      }

      @Override
      public Iterator<Entry<E>> iterator() {
        return entryIterator();
      }

      @Override
      public int size() {
        return forwardMultiset().entrySet().size();
      }
    }
    return new EntrySetImpl();
  }

  @Override
  public Iterator<E> iterator() {
    return Multisets.iteratorImpl(this);
  }

  @Override

      }

      @Override
      public Iterator<Entry<E>> iterator() {
        return entryIterator();
      }

      @Override
      public int size() {
        return forwardMultiset().entrySet().size();
      }
    }
    return new EntrySetImpl();
  }

  @Override
  public Iterator<E> iterator() {
    return Multisets.iteratorImpl(this);
  }

  @Override

        return set1.isEmpty() && set2.isEmpty();
      }

      @Override
      public UnmodifiableIterator<E> iterator() {
        return new AbstractIterator<E>() {
          final Iterator<? extends E> itr1 = set1.iterator();
          final Iterator<? extends E> itr2 = set2.iterator();

          @Override
          @CheckForNull
          protected E computeNext() {
            if (itr1.hasNext()) {

    Iterator<Integer> iterator = ints.iterator();
    assertEquals(0, (int) numberOrdering.min(iterator));
    assertFalse(iterator.hasNext());
  }

  public void testIteratorMaxExhaustsIterator() {
    List<Integer> ints = Lists.newArrayList(9, 0, 3, 5);
    Iterator<Integer> iterator = ints.iterator();
    assertEquals(9, (int) numberOrdering.max(iterator));
    assertFalse(iterator.hasNext());

    Iterator<Integer> iterator = ints.iterator();
    assertEquals(0, (int) numberOrdering.min(iterator));
    assertFalse(iterator.hasNext());
  }

  public void testIteratorMaxExhaustsIterator() {
    List<Integer> ints = Lists.newArrayList(9, 0, 3, 5);
    Iterator<Integer> iterator = ints.iterator();
    assertEquals(9, (int) numberOrdering.max(iterator));
    assertFalse(iterator.hasNext());

    StringSubscriber s2 = new StringSubscriber();
    ObjectSubscriber o1 = new ObjectSubscriber();

    Iterator<Subscriber> empty = registry.getSubscribers("");
    assertFalse(empty.hasNext());

    empty = registry.getSubscribers("");

    registry.register(s1);
    assertFalse(empty.hasNext());

    Iterator<Subscriber> one = registry.getSubscribers("");
    assertEquals(s1, one.next().target);

import java.util.Enumeration;
import java.util.Iterator;

import org.codelibs.core.exception.ClUnsupportedOperationException;

/**
 * {@link Enumeration}を {@link Iterator}にするためのアダブタです。
 *
 * @author shot
 * @param <T>
 *            列挙する要素の型
 */
public class EnumerationIterator<T> implements Iterator<T> {

    private Enumeration<T> enumeration = null;

    /**

  @ListFeature.Require(SUPPORTS_ADD_WITH_INDEX)
  public void testAddAtIndexConcurrentWithIteration() {
    try {
      Iterator<E> iterator = collection.iterator();
      getList().add(0, e3());
      iterator.next();
      fail("Expected ConcurrentModificationException");
    } catch (ConcurrentModificationException expected) {
      // success
    }
  }