JTableのセル編集を文字入力変換中からでも可能にする

JTable table = new JTable(model) {
  @Override protected boolean processKeyBinding(
      KeyStroke ks, KeyEvent e, int condition, boolean pressed) {
    boolean retValue = super.processKeyBinding(ks, e, condition, pressed);
    // if (!check.isSelected()) return retValue;
    if (KeyStroke.getKeyStroke('\t').equals(ks) ||
        KeyStroke.getKeyStroke('\n').equals(ks)) {
      System.out.println("tab or enter typed");
      return retValue;
    }
    if (getInputContext().isCompositionEnabled() && !isEditing() &&
        !pressed && !ks.isOnKeyRelease()) {
      int selectedRow = getSelectedRow();
      int selectedColumn = getSelectedColumn();
      if (selectedRow != -1 && selectedColumn != -1 &&
          !editCellAt(selectedRow, selectedColumn)) {
        return retValue;
      }
    }
    return retValue;
  }
};
// table.setSurrendersFocusOnKeystroke(true);