void o1(Integer... objects1) {
    this.objects1 = objects1;
    this.oi1 = createOI(objects1.length);
  }
TestObjectInspectorUtils.compare method.
int compare(Object[] o1, ObjectInspector[] oi1, Object[] o2,
      ObjectInspector[] oi2, boolean[] columnSortOrderIsDesc, NullValueOption[] nullSortOrder)
serde/src/test/org/apache/hadoop/hive/serde2/objectinspector/TestObjectInspectorUtilsCompare.java