public void test(TestHarness harness)
{
DefaultButtonModel m = new DefaultButtonModel();
m.addActionListener(this);
m.addChangeListener(this);
m.addItemListener(this);
m.setSelected(true);
harness.check(m.isSelected(), true);
harness.check(lastChangeEvent.getSource(), m);
harness.check(lastActionEvent, null);
harness.check(lastItemEvent.getSource(), m);