JCombobox focusLost is not firing-why is that?

I have a JCombobox in my code. I have added the FocusLost event. But it didn't fired anyway. I have tried lots of time but didn't find solution.

jcbItemType.addFocusListener(new java.awt.event.FocusAdapter() {
    public void focusLost(java.awt.event.FocusEvent evt) {
        jcbItemTypeFocusLost(evt);
    }
});

private void jcbItemTypeFocusLost(java.awt.event.FocusEvent evt)                                      
    {                                          
        // TODO add your handling code here:
        System.out.println("name=" + ((Component) evt.getSource()).getName());
        System.out.println("index=" + jcbItemType.getSelectedIndex());
    }

But nothing is printed in console. Please suggest me what I am doing wrong.