@SuppressWarnings("unchecked")
  private org.apache.hadoop.mapred.RecordReader<NullWritable, OrcStruct>
    createVectorizedReader(InputSplit split, JobConf conf, Reporter reporter
                           ) throws IOException {
    return (org.apache.hadoop.mapred.RecordReader)
      new VectorizedOrcInputFormat().getRecordReader(split, conf, reporter);
  }
Class intended to update two values from methods... Java-related cruft.
ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcInputFormat.java