Single column use MultiDelimitSerDe parse column error

1|@|
2|@|
3|@| 

CREATE EXTERNAL TABLE IF NOT EXISTS test_split_tmp(`ID` string) ROW FORMAT SERDE 'org.apache.hadoop.hive.contrib.serde2.MultiDelimitSerDe' WITH SERDEPROPERTIES('field.delim'='|@|') STORED AS textfile location '/tmp/test_split_tmp'; 

hdfs dfs -put /tmp/data /tmp/test_split_tmp 

select UDFToLong(`id`) from test_split_tmp; 

+--------+
| id     |
+--------+
| NULL   |
| NULL   |
| NULL   |
+--------+ 

private int[] findIndexes(byte[] array, byte[] target) {
  if (fields.length <= 1) {  // bug
    return new int[0];
  }
  ...
  for (int i = 1; i < indexes.length; i++) {  // bug
    array = Arrays.copyOfRange(array, indexInNewArray + target.length, array.length);
    indexInNewArray = Bytes.indexOf(array, target);
    if (indexInNewArray == -1) {
      break;
    }
    indexes[i] = indexInNewArray + indexes[i - 1] + target.length;
  }
  return indexes;
}

public void parseMultiDelimit(byte[] rawRow, byte[] fieldDelimit) {
  ...
  int[] delimitIndexes = findIndexes(rawRow, fieldDelimit);
  ...
    if (fields.length > 1 && delimitIndexes[i - 1] != -1) { // bug
      int start = delimitIndexes[i - 1] + fieldDelimit.length;
      startPosition[i] = start - i * diff;
    } else {
      startPosition[i] = length + 1;
    }
  }
  Arrays.fill(fieldInited, false);
  parsed = true;
}