code: public static WebhookMessage embeds(MessageEmbed first, MessageEmbed... embeds)
      {
          Checks.notNull(first,   "Embeds");
          Checks.noneNull(embeds, "Embeds");
          List<MessageEmbed> list = new ArrayList<>(1 + embeds.length);
          list.add(first);
          Collections.addAll(list, embeds);
          return new WebhookMessage(null, null, null, list, false, null);
      }
docs: forcing first embed as we expect at least one entry (Effective Java 3rd. Edition - Item 53)