return me;
  }

  // Make a safe contravariant cast now so we don't have to do it over and over.
  @SuppressWarnings("unchecked")
  <K1 extends K, V1 extends V> RemovalListener<K1, V1> getRemovalListener() {
    return (RemovalListener<K1, V1>)
        MoreObjects.firstNonNull(removalListener, NullListener.INSTANCE);
  }

  /**