Method flatten

future-java/src/main/java/io/trane/future/Future.java:192–192

Flattens a nested future. The usage of this method indicates a code smell: a map may have been used instead of flatMap. There are genuine scenarios where flatten is required, though. @param fut the nested future @param the type of the future result @return the flat future

(final Future<Future<T>> fut)

   * @return     the flat future
   */
  public static <T> Future<T> flatten(final Future<Future<T>> fut) {
    return fut.flatMap(f -> f);
  }