// see #1004681

static JTable showConcepts() {
  final JTable table = tableWithToolTips();
  showFrame(tableWithSearcher(table));
  
  tablePopupMenu(table, voidfunc(JPopupMenu menu, final int row) {
    menu.add(jmenuitem("Delete", r {
      Map map = getTableLineAsMap(table, row);
      deleteConcept(toInt(map.get("ID")));
    }));
  });
  
  installTimer(table, 1000, 0, new Runnable {
    long changesShown;
    public void run() {
      if (changesShown == changes) ret;
      changesShown = changes;
      L data = map(func(Concept c) {
        litorderedmap("Name", joinLines(" / " , unnull(c.name)), /*"Energy", formatDouble(c.energy, 2),*/ "ID", c.id)
      }, values(concepts));
      dataToTable_uneditable(table, data);
    }
  });
  
  ret table;
}