static JTable addRowSorter_desc(final JTable table, final int column) {
  swing {
    if (table.getRowSorter() != null) ret;
    TableRowSorter sorter = new(table.getModel());
    pcall { sorter.setSortKeys(ll(new RowSorter.SortKey(column, SortOrder.DESCENDING))); }
    table.setRowSorter(sorter);
  }
  ret table;
}