presto-accumulo/src/main/java/io/prestosql/plugin/accumulo/model/TabletSplitMetadata.java/TabletSplitMetadata/TabletSplitMetadata
class TabletSplitMetadata:    @JsonCreator
    public TabletSplitMetadata(
            @JsonProperty("hostPort") Optional<String> hostPort,
            @JsonProperty("ranges") List<Range> ranges)
    {
        this.hostPort = requireNonNull(hostPort, "hostPort is null");
        this.ranges = ImmutableList.copyOf(requireNonNull(ranges, "ranges is null"));
    }