presto-hive/src/main/java/io/prestosql/plugin/hive/util/HiveFileIterator.java/FileStatusIterator/next
class FileStatusIterator:        @Override
        public LocatedFileStatus next()
        {
            try {
                return fileStatusIterator.next();
            }
            catch (IOException e) {
                throw processException(e);
            }
        }