How to use

addExplicitNullPosition

method

in

org.h2.result.SortOrder

/**
 * Returns sort order bit masks with {@link #NULLS_FIRST} or {@link #NULLS_LAST}
 * explicitly set, depending on {@link SysProperties#SORT_NULLS_HIGH}.
 *
 * @return bit masks with either {@link #NULLS_FIRST} or {@link #NULLS_LAST} explicitly set.
 */
public int[] getSortTypesWithNullPosition() {
  final int[] sortTypes = this.sortTypes.clone();
  for (int i=0, length = sortTypes.length; i<length; i++) {
    sortTypes[i] = addExplicitNullPosition(sortTypes[i]);
  }
  return sortTypes;
}

  break;
if (SortOrder.addExplicitNullPosition(idxCol.sortType) != sortTypes[j]) {
  ok = false;
  break;