presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/storage/organization/OrganizationSet.java/OrganizationSet/OrganizationSet
class OrganizationSet:    public OrganizationSet(long tableId, Set<UUID> shards, OptionalInt bucketNumber)
    {
        this.tableId = tableId;
        this.shards = requireNonNull(shards, "shards is null");
        this.bucketNumber = requireNonNull(bucketNumber, "bucketNumber is null");
    }