static final ImmutableMap<Object, Object> EMPTY = new RegularImmutableMap<Object, Object>();

  RegularImmutableMap(Map<? extends K, ? extends V> delegate) {
    super(delegate);
  }

  RegularImmutableMap(Entry<? extends K, ? extends V>... entries) {
    this(/* throwIfDuplicateKeys= */ true, entries);
  }

    private final NavigableMap<K, ? extends V> delegate;

    UnmodifiableNavigableMap(NavigableMap<K, ? extends V> delegate) {
      this.delegate = delegate;
    }

    UnmodifiableNavigableMap(
        NavigableMap<K, ? extends V> delegate, UnmodifiableNavigableMap<K, V> descendingMap) {
      this.delegate = delegate;
      this.descendingMap = descendingMap;
    }

    @Override

    private final NavigableMap<K, ? extends V> delegate;

    UnmodifiableNavigableMap(NavigableMap<K, ? extends V> delegate) {
      this.delegate = delegate;
    }

    UnmodifiableNavigableMap(
        NavigableMap<K, ? extends V> delegate, UnmodifiableNavigableMap<K, V> descendingMap) {
      this.delegate = delegate;
      this.descendingMap = descendingMap;
    }

    @Override

    val uppercaseBody: RequestBody =
      object : ForwardingRequestBody(request.body) {
        @Throws(IOException::class)
        override fun writeTo(sink: BufferedSink) {
          delegate().writeTo(uppercaseSink(sink).buffer())
        }
      }
    return request
      .newBuilder()
      .method(request.method, uppercaseBody)
      .build()
  }

  }

  public void testUnmodifiableArrayListMultimapRandomAccess() {
    ListMultimap<String, Integer> delegate = ArrayListMultimap.create();
    delegate.put("foo", 1);
    delegate.put("foo", 3);
    ListMultimap<String, Integer> multimap = Multimaps.unmodifiableListMultimap(delegate);
    assertTrue(multimap.get("foo") instanceof RandomAccess);
    assertTrue(multimap.get("bar") instanceof RandomAccess);
  }

   */
  private inner class TaskFakerBlockingQueue<T>(
    val delegate: BlockingQueue<T>,
  ) : AbstractQueue<T>(),
    BlockingQueue<T> {
    override val size: Int = delegate.size

    private var editCount = 0

    override fun poll(): T = delegate.poll()

    override fun poll(
      timeout: Long,
      unit: TimeUnit,
    ): T? {

      checkNotNull(collection);
      throw new IllegalArgumentException("Key does not satisfy predicate: " + key);
    }

    @Override
    protected Set<V> delegate() {
      return emptySet();
    }
  }

  private static final class AddRejectingList<
          K extends @Nullable Object, V extends @Nullable Object>
      extends ForwardingList<V> {

      checkNotNull(collection);
      throw new IllegalArgumentException("Key does not satisfy predicate: " + key);
    }

    @Override
    protected Set<V> delegate() {
      return emptySet();
    }
  }

  private static final class AddRejectingList<
          K extends @Nullable Object, V extends @Nullable Object>
      extends ForwardingList<V> {

      checkNotNull(entry.getKey());
      checkNotNull(entry.getValue());
    }
    return new ImmutableEnumMap<K, V>(map);
  }

  private ImmutableEnumMap(Map<? extends K, ? extends V> delegate) {
    super(delegate);
  }

    public void run() {}
  }

  private abstract static class ForwardToDelegate extends ForwardingObject implements Runnable {
    @Override
    public void run() {
      delegate().run();
    }

    @Override
    protected abstract Runnable delegate();
  }