* value.
   */
  @SuppressWarnings("Immutable")
  @LazyInit
  private int registrySuffixIndexCache = SUFFIX_NOT_INITIALIZED;

  /** Constructor used to implement {@link #from(String)}, and from subclasses. */
  InternetDomainName(String name) {
    // Normalize:
    // * ASCII characters to lowercase
    // * All dot-like characters to '.'
    // * Strip trailing '.'

       * Converter.apply has a non-nullable parameter type but doesn't throw for null arguments. For
       * more information, see the comments in that class.
       *
       * We already know that that's how it behaves, and subclasses of Converter can't change that
       * behavior. So there's no sense in making all subclass authors exclude the method from any
       * NullPointerTester tests that they have.
       */

        return identity == that.identity;
      }
      return false;
    }

    @Override
    public String toString() {
      return paramString(interfaceType, identity);
    }
  }

  /** Subclasses can override to provide different return value for proxied interface methods. */
  @CheckForNull
  Object interfaceMethodCalled(Class<?> interfaceType, Method method) {
    throw new UnsupportedOperationException();
  }

  @Override
  public String toString() {
    return String.format(Locale.ROOT, "RateLimiter[stableRate=%3.1fqps]", getRate());
  }

  abstract static class SleepingStopwatch {
    /** Constructor for use by subclasses. */
    protected SleepingStopwatch() {}

    /*
     * We always hold the mutex when calling this. TODO(cpovirk): Is that important? Perhaps we need

  // Optional.of(this). To access the delegate iterable, call #getDelegate(), which converts to
  // absent() back to 'this'.
  private final Optional<Iterable<E>> iterableDelegate;

  /** Constructor for use by subclasses. */
  protected FluentIterable() {
    this.iterableDelegate = Optional.absent();
  }

  FluentIterable(Iterable<E> iterable) {
    this.iterableDelegate = Optional.of(iterable);
  }

The new APIs use `mockwebserver3` in both the Maven coordinate and package name. This new API is
**not stable** and will likely change before the final 5.0.0 release.

If you have code that subclasses `okhttp3.mockwebserver.QueueDispatcher`, this update is not source
or binary compatible. Migrating to the new `mockwebserver3` package will fix this problem.

        return identity == that.identity;
      }
      return false;
    }

    @Override
    public String toString() {
      return paramString(interfaceType, identity);
    }
  }

  /** Subclasses can override to provide different return value for proxied interface methods. */
  @CheckForNull
  Object interfaceMethodCalled(Class<?> interfaceType, Method method) {
    throw new UnsupportedOperationException();
  }

   * value.
   */
  @SuppressWarnings("Immutable")
  @LazyInit
  private int registrySuffixIndexCache = SUFFIX_NOT_INITIALIZED;

  /** Constructor used to implement {@link #from(String)}, and from subclasses. */
  InternetDomainName(String name) {
    // Normalize:
    // * ASCII characters to lowercase
    // * All dot-like characters to '.'
    // * Strip trailing '.'

    return predicate instanceof CharMatcher ? (CharMatcher) predicate : new ForPredicate(predicate);
  }

  // Constructors

  /**
   * Constructor for use by subclasses. When subclassing, you may want to override {@code
   * toString()} to provide a useful description.
   */
  protected CharMatcher() {}

  // Abstract methods

    public String toString() {
      synchronized (mutex) {
        return delegate.toString();
      }
    }

    // Serialization invokes writeObject only when it's private.
    // The SynchronizedObject subclasses don't need a writeObject method since
    // they don't contain any non-transient member variables, while the
    // following writeObject() handles the SynchronizedObject members.