return null;
ListSelectionModel lsm = this.selectionModel; int sz = getSelectedColumnCount(); int [] ret = new int[sz];  int lo = lsm.getMinSelectionIndex(); int hi = lsm.getMaxSelectionIndex(); int j = 0; java.util.ArrayList ls = new java.util.ArrayList(); if (lo != -1 && hi != -1) { switch (lsm.getSelectionMode()) { case ListSelectionModel.SINGLE_SELECTION: ret[0] = lo; break;  case ListSelectionModel.SINGLE_INTERVAL_SELECTION: for (int i = lo; i <= hi; ++i) ret[j++] = i; break;  case ListSelectionModel.MULTIPLE_INTERVAL_SELECTION: for (int i = lo; i <= hi; ++i) if (lsm.isSelectedIndex(i)) ret[j++] = i; break; } } return ret;
  public int[] getSelectedColumns()  {		return null; // TODO  }