code: public static <A> Will<A> failedWill(@Nonnull Throwable throwable) {
          return new Of<A>(Futures.<A>immediateFailedFuture(throwable));
      }
docs: Creates failed {@link Will} using provided {@link java.lang.Throwable}
  
  @param throwable Will exception
  @param <A>       Type of Will
  @return Created Will