code: public static RiakClient newClient(Collection<HostAndPort> hosts, RiakNode.Builder nodeBuilder) throws UnknownHostException
      {
          final RiakCluster cluster = new RiakCluster.Builder(hosts, nodeBuilder).build();
          cluster.start();
  
          return new RiakClient(cluster);
      }
docs: Static factory method to create a new client instance.
  
  @since 2.0.6