class BooleanCellRenderer extends JCheckBox implements TableCellRenderer {

    public BooleanCellRenderer() {
      super();
      setHorizontalAlignment(JLabel.CENTER);
      setBorder(BorderFactory.createEmptyBorder());
    }

    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
      setBackground(isSelected ? table.getSelectionBackground() : table.getBackground());
      setSelected((value != null && ((Boolean)value).booleanValue()));
      return this;
    }
  }