[macosx] Custom painted Window with height less than 8px are incorrectly drawn

FULL PRODUCT VERSION :
1.7.0_04-b21

ADDITIONAL OS VERSION INFORMATION :
Mac OSX 10.7.4

A DESCRIPTION OF THE PROBLEM :
When you create a java.awt.Window and override paint it doesn't draw correctly unless the window height is at least 8px high.

REGRESSION. Last worked in version 6u31

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile and run this test class

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
On Java6 for mac (and java6 and java7 for windows) the result is a blue line (window) with 300px width and 3px height.
ACTUAL -
On Java7 for mac the result is a 300x3 window with some blue and some garbage pixels.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
public class TestWindowForMacJava7 {
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                Frame f = new Frame();
                f.setLocation(0, 0);
                f.setSize(0, 0);
                f.setUndecorated(true);
                f.setVisible(true);

                Window w = new Window(f) {
                    public void paint(Graphics g) {
                        g.setColor(Color.BLUE);
                        g.fillRect(0, 0, getWidth(), getHeight());
                    }
                };

                w.setLocation(100, 100);
                w.setSize(300, 3);
                w.setAlwaysOnTop(true);
                w.setVisible(true);
            }
        });
    }
}
---------- END SOURCE ----------