JSplitPane resize problem (not a minimum size problem though)

Question

I created a JSplitPane and put a JPanel in both the top and bottom sides. This JSplitPane is in the center section of a BorderLayout of a JFrame. The minimum sizes are set and I can move the divider bar all I want. Instead, I am having trouble resizing the window and having the divider bar becoming shorter. When I resize the window, the width of the images dont become smaller even though they have a minimum size set to a minimal size and there is space in the panels that can be reduced.
Here is the code that I am playing with to get this to work. Any ideas how to get this to work? It works in the SwingSet2 Demo, but there is so much extra junk in there that I cant determine the differences with what I'm doing.
Thanks,
J.R.
import java.awt.*;
import javax.swing.*;
public class SplitPaneJFrame extends JFrame {
JPanel statsPanel = new JPanel();
JPanel northPanel = new JPanel();
JPanel southPanel = new JPanel();
JSplitPane splitPane;
public SplitPaneJFrame () {
setupGUI();
private void setupGUI() {
setDefaultCloseOperation(EXIT_ON_CLOSE);
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
setSize(screenSize.width, screenSize.height - 64);
Container c = getContentPane();
c.setLayout(new BorderLayout());
JPanel p1 = new JPanel();
p1.setMinimumSize(new Dimension(100,100));
p1.setPreferredSize(new Dimension(500,250));
p1.setBackground(Color.yellow);
p1.add(new Button("This is a button for the top area"));
JPanel p2 = new JPanel();
p2.setMinimumSize(new Dimension(100,100));
p2.setPreferredSize(new Dimension(500,250));
p2.setBackground(Color.red);
p2.add(new Button("This is a button for the bottom area"));
splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT, true, northPanel, southPanel);
splitPane.setOneTouchExpandable(true);
northPanel.setLayout(new BorderLayout());
northPanel.setMinimumSize(new Dimension(100,100));
JPanel panel = new JPanel();
panel.setLayout(new FlowLayout(FlowLayout.LEFT,0,0));
panel.setPreferredSize(new Dimension((int)Math.min(1012, getSize().width * .75), (int)(getSize().height * 0.75)));
panel.setMinimumSize(new Dimension(100,100));
panel.add(p1);
northPanel.add(panel);
southPanel.setLayout(new BorderLayout());
southPanel.setMinimumSize(new Dimension(100,100));
southPanel.add(p2);
splitPane.setDividerLocation(0.75);
c.setLayout(new FlowLayout(FlowLayout.LEFT,0,0));
c.setBackground(Color.white);
JPanel jp = new JPanel();
jp.add(splitPane);
c.add(BorderLayout.CENTER, jp);
setVisible(true);
public static void main(String args []) {
new SplitPaneJFrame();

Answer 1

Hmm. Ok, that was dumb on my part :-) Sometimes you just need a second set of eyes.
Any Idea why, after I make the fix, the top panel does not resize at all? The bottom one does, but the inner panels of the top do not. I added a second panel to the top and it flowed under the first one panel (p1) as the outter panel (northPanel) resized, but the inner panel stays the same size regardless of how much I narrow the window.
J.R.