Recursive background color working except for jcombobox & jbutton

Question

I'll start this as I usually do: I probably missing somethign obvious but...
I am trying to setup a gui where all of a JFrames child components change background and foreground color. It seems to be working fine except for my JCombobox (the currently selected item background, not the pulldown), my button backgrounds, my checkbox boxes, and my radio button circles. (all of these are appearing as white) (code below)
My suspicion is that I'll need to bail on this approach and look into making a custom laf. I have a strong suspicion that if at all possible, I don't want to go down that route: Is there any way I can make this approach work?
//this is code in my custom JFrame subclass
public void setComponentsColor ( Color foreColor, Color backColor ) {     
     setContainersComponentsBackground( this.getContentPane(), foreColor, backColor );
protected void setContainersComponentsBackground ( Container container, Color foreColor, Color backColor  ) {
     Component [] array = container.getComponents();
     for( int i = 0; i < array.length; i++ ) {
          array.setBackground( backColor );
          array[i].setForeground( foreColor );
//test to see if it is a container
          if( Container.class.isAssignableFrom( array[i].getClass()) ) {
               setContainersComponentsBackground( (Container)(array[i]), foreColor, backColor );
thanks all
-sss

Answer 1

So to be clearTo be clear you should include code the demonstates the incorrect behaviour. When I run the following code the North combobox is red and the South combobox is blue. It doesn't matter whether the dropdown is visible or not.
import java.awt.*;
import javax.swing.*;
public class ComboBoxTemp extends JFrame
    public ComboBoxTemp()
        String[] items = { "a", "b", "c" };
        JComboBox comboBox1 = new JComboBox( items );
        comboBox1.setBackground( Color.red );
        comboBox1.setForeground( Color.white );
        getContentPane().add( comboBox1, BorderLayout.NORTH );
        JComboBox comboBox2 = new JComboBox( items );
        comboBox2.setEditable( true );
        comboBox2.getEditor().getEditorComponent().setBackground(Color.blue);
        comboBox2.getEditor().getEditorComponent().setForeground(Color.white);
        comboBox2.setBackground( Color.blue );
        comboBox2.setForeground( Color.white );
        getContentPane().add( comboBox2, BorderLayout.SOUTH );
    public static void main(String[] args)
        ComboBoxTemp frame = new ComboBoxTemp();
        frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
        frame.pack();
        frame.setLocationRelativeTo( null );
        frame.setVisible( true );
}