private void convertValueListToListColumnVector(
      PrimitiveObjectInspector.PrimitiveCategory category, ListColumnVector lcv, List valueList,
      int elementNum) {
    // Fill the child of ListColumnVector with valueList
    fillColumnVector(category, lcv, valueList, elementNum);
    setIsRepeating(lcv);
  }
Finish the result ListColumnVector with all collected information.
ql/src/java/org/apache/hadoop/hive/ql/io/parquet/vector/VectorizedListColumnReader.java