return MutableClassToInstanceMap.this.delegate().entrySet();
      }

      @Override
      public Iterator<Entry<Class<? extends @NonNull B>, B>> iterator() {
        return new TransformedIterator<
            Entry<Class<? extends @NonNull B>, B>, Entry<Class<? extends @NonNull B>, B>>(
            delegate().iterator()) {
          @Override
          Entry<Class<? extends @NonNull B>, B> transform(

import java.io.Reader;
import java.util.Iterator;
import org.jspecify.annotations.Nullable;

/**
 * A {@link Reader} that concatenates multiple readers.
 *
 * @author Bin Zhu
 * @since 1.0
 */
@J2ktIncompatible
@GwtIncompatible
final class MultiReader extends Reader {
  private final Iterator<? extends CharSource> it;
  private @Nullable Reader current;

      return standardToString();
    }

    @Override
    public Set<Entry<K, V>> entrySet() {
      return new StandardEntrySet() {
        @Override
        public Iterator<Entry<K, V>> iterator() {
          return backingMap.entrySet().iterator();
        }
      };
    }

    @Override
    public void clear() {
      standardClear();
    }

    @Override
    public boolean isEmpty() {

            Currency.PESO, Country.CHILE,
            Currency.FRANC, Country.SWITZERLAND);
    EnumBiMap<Currency, Country> bimap = EnumBiMap.create(map);

    Iterator<Currency> iter = bimap.keySet().iterator();
    assertEquals(Currency.DOLLAR, iter.next());
    iter.remove();

    // forward map ordered by currency
    assertThat(bimap.keySet()).containsExactly(Currency.FRANC, Currency.PESO).inOrder();

  }
}

internal fun <T> interleave(
  a: Iterable<T>,
  b: Iterable<T>,
): List<T> {
  val ia = a.iterator()
  val ib = b.iterator()

  return buildList {
    while (ia.hasNext() || ib.hasNext()) {
      if (ia.hasNext()) {
        add(ia.next())
      }
      if (ib.hasNext()) {
        add(ib.next())
      }

        } catch (NullPointerException | ClassCastException e) {
          return false;
        }
      }

      @Override
      public Iterator<Entry<K, V>> iterator() {
        return delegate().iterator();
      }

      @Override
      public int size() {
        return delegate().size();
      }

      @Override
      public boolean remove(Object o) {

        assertEquals(pom0Basedir, project1.getParent().getBasedir());
        Set set = project1.getArtifacts();
        assertNotNull(set, "No artifacts");
        assertFalse(set.isEmpty(), "No Artifacts");
        Iterator iter = set.iterator();
        assertTrue(set.size() == 4, "Set size should be 4, is " + set.size());

        while (iter.hasNext()) {
            Artifact artifact = (Artifact) iter.next();

        // When
        mockIterator.close();

        // Then
        verify(mockIterator).close();
    }

    @Test
    @DisplayName("Should extend Iterator and AutoCloseable")
    void testInterfaceInheritance() {
        // Then
        assertTrue(java.util.Iterator.class.isAssignableFrom(CloseableIterator.class));
        assertTrue(AutoCloseable.class.isAssignableFrom(CloseableIterator.class));
    }

        } catch (NullPointerException | ClassCastException e) {
          return false;
        }
      }

      @Override
      public Iterator<Entry<K, V>> iterator() {
        return delegate().iterator();
      }

      @Override
      public int size() {
        return delegate().size();
      }

      @Override
      public boolean remove(Object o) {

            sb.append(LS);
            sb.append(indentation);
            sb.append("Path to dependency: ");
            sb.append(LS);
            int num = 1;
            for (Iterator<String> i = path.iterator(); i.hasNext(); num++) {
                sb.append(indentation);
                sb.append('\t');
                sb.append(num);
                sb.append(") ");
                sb.append(i.next());