How to cause JComboBox to open to preselected item?

Question

If you initialize a JComboBox to an item (using setSelectedIndex, for instance), the first time that the comboBox is opened, it will open at the top of the list, not at the selected item. For example:
JComboBox jComboBoxHourPicker = new JComboBox();
// Add comboBox items here
jComboBoxHourPicker.setSelectedIndex(22);
The comboBox will correctly show the 23rd item selected. When the user opens the comboBox, however, it will open at the first item, not at the 23rd. If the user closes the comboBox without changing the selection, though, the next time that the comboBox is opened it will have scrolled to the selected item.
The JList class has the ensureIndexIsVisible() method. Does anyone know how to get the same behavior for the JComboBox class?

Answer 1

This is a known bug that has been fixed in v1.4. Check out the thread below, by me, for all the details. You're following in my footsteps.
If you need a workaround for 1.3, follow the link into the bug database and there's a pretty decent one there.
http://developer.java.sun.com/developer/bugParade/bugs/4337516.html