rendering actions in a combo box

When I add an array of action-objects (the class extends AbstractAction)

to a combo box, I do receive the action performed events, great!

But the combo box items show the long string of the action object, of course!

How to render that string in a way that only the Action.NAME appears?

I was experimenting a little, but could not make it to work:

Java Code:

private class ComboRenderer2 extends BasicComboBoxRenderer {

            @Override
            public Component getListCellRendererComponent(JList list,
                    Object value, int index, boolean isSelected,
                                                boolean cellHasFocus) {
                super.getListCellRendererComponent(list, value, index,
                                                isSelected, cellHasFocus);
                final Object fntObj = value;
                Action sa = null;
                sa = (Action) fntObj;
                String s = (String) sa.getValue(Action.NAME);
                // ??
                return this;
            }
        }