return Iterators.transform(entries, UnmodifiableEntry::new);
    }

    private UnmodifiableEntry(Entry<K, V> delegate) {
      this.delegate = checkNotNull(delegate);
    }

    @Override
    protected Entry<K, V> delegate() {
      return delegate;
    }

    @Override
    @ParametricNullness
    public V setValue(@ParametricNullness V value) {

        .addEqualityGroup(set2, wrap(set2))
        .testEquals();
  }

  private static <T> NavigableSet<T> wrap(NavigableSet<T> delegate) {
    return new ForwardingNavigableSet<T>() {
      @Override
      protected NavigableSet<T> delegate() {
        return delegate;
      }
    };
  }

                // release
                old.release(true);
            }
            if (this.delegate != null && this.delegateAcquired) {
                log.debug("Releasing delegate");
                this.delegateAcquired = false;
                this.delegate.release();
            }
        }
    }

    /**
     * @return tree connection with increased usage count
     */

/**
 * A RoutePlanner that will always establish a new connection, ignoring any connection pooling
 */
class ForceConnectRoutePlanner(
  private val delegate: RealRoutePlanner,
) : RoutePlanner by delegate {
  override fun plan(): RoutePlanner.Plan = delegate.planConnect() // not delegate.plan()

@Deprecated
public class MavenXpp3Reader {
    private MavenStaxReader delegate;

    public MavenXpp3Reader() {
        this(null, false);
    }

    public MavenXpp3Reader(ContentTransformer contentTransformer) {
        this(contentTransformer, false);
    }

    protected MavenXpp3Reader(ContentTransformer contentTransformer, boolean addLocationInformation) {
        delegate =

  @Override
  protected abstract Queue<E> delegate();

  @CanIgnoreReturnValue // TODO(cpovirk): Consider removing this?
  @Override
  public boolean offer(@ParametricNullness E o) {
    return delegate().offer(o);
  }

  @CanIgnoreReturnValue // TODO(cpovirk): Consider removing this?
  @Override
  public @Nullable E poll() {
    return delegate().poll();
  }

  @CanIgnoreReturnValue
  @Override

class DirFileEntryAdapterIterator extends FileEntryAdapterIterator {

    /**
     * @param parent
     * @param delegate
     * @param filter
     */
    public DirFileEntryAdapterIterator(final SmbResource parent, final CloseableIterator<FileEntry> delegate, final ResourceFilter filter) {
        super(parent, delegate, filter);
    }

    /**
     * @param fe
     * @return
     * @throws MalformedURLException
     */

  @Override
  protected abstract SortedMap<K, V> delegate();

  @Override
  public @Nullable Comparator<? super K> comparator() {
    return delegate().comparator();
  }

  @Override
  @ParametricNullness
  public K firstKey() {
    return delegate().firstKey();
  }

  @Override
  public SortedMap<K, V> headMap(@ParametricNullness K toKey) {
    return delegate().headMap(toKey);
  }

  @Override

    private final MetadataStaxWriter delegate;

    /**
     * Default constructor
     */
    public MetadataXpp3Writer() {
        delegate = new MetadataStaxWriter();
    }

    /**
     * Method setFileComment.
     *
     * @param fileComment a fileComment object.
     */
    public void setFileComment(String fileComment) {
        delegate.setFileComment(fileComment);
    }

    /**

        cl.delegate = builder
        cl.call()
        def firstChild = parent.getFirstChild()
        builder.elements.each { element ->
            parent.insertBefore(element, firstChild)
        }
    }

    public static void addBefore(Node sibling, Closure cl) {
        DomBuilder builder = new DomBuilder(sibling.ownerDocument, null)
        cl.delegate = builder
        cl.call()