presto-orc/src/main/java/io/prestosql/orc/AbstractOrcDataSource.java/MergedOrcDataReader/MergedOrcDataReader
class MergedOrcDataReader:        public MergedOrcDataReader(OrcDataSourceId orcDataSourceId, DiskRange diskRange, LazyBufferLoader lazyBufferLoader)
        {
            this.orcDataSourceId = requireNonNull(orcDataSourceId, "orcDataSourceId is null");
            this.diskRange = requireNonNull(diskRange, "diskRange is null");
            this.lazyBufferLoader = requireNonNull(lazyBufferLoader, "lazyBufferLoader is null");
        }