code: public static URI createAmqpUri(final String host, final String exchange) {
          return createUri(AMQP_SCHEME, host).resolve("/" + exchange);
      }
docs: Create a {@link URI} with amqp scheme and host.
  
  @param host
  the host
  @param exchange
  the exchange will store in the path
  @return the {@link URI}
  @throws IllegalArgumentException
  If the given string not parse able