presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/backup/BackupManager.java/BackgroundBackup/BackgroundBackup
class BackgroundBackup:        public BackgroundBackup(UUID uuid, File source)
        {
            this.uuid = requireNonNull(uuid, "uuid is null");
            this.source = requireNonNull(source, "source is null");
        }