@NotNull
  protected List<RowSorter.SortKey> getTableSortingKeys() {
    return Arrays.asList(
      new RowSorter.SortKey(DiffViewTableModel.DIFF_COLUMN_INDEX, SortOrder.DESCENDING),
      new RowSorter.SortKey(DiffViewTableModel.COUNT_COLUMN_INDEX, SortOrder.DESCENDING),
      new RowSorter.SortKey(DiffViewTableModel.CLASSNAME_COLUMN_INDEX, SortOrder.ASCENDING)
    );
  }
@NotNull
  protected List<RowSorter.SortKey> getTableSortingKeys()