import java.awt.*;import java.awt.event.*;import javax.swing.*;public class TestStayOnTop_JDK13 extends JFrame {    private Canvas STAY_ON_TOP_CANVAS =                      SunkingJNIUtil.getDefault().createJDK1_3StayOnTopCanvas();    public TestStayOnTop_JDK13() {        this.setSize(400,300);        STAY_ON_TOP_CANVAS.setBounds(new Rectangle(0, 0, 1, 1));        this.getContentPane().setLayout(null);        this.getContentPane().add(STAY_ON_TOP_CANVAS, null);        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);    }    public static void main(String[] args) {        TestStayOnTop_JDK13 frame = new TestStayOnTop_JDK13();        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();        Dimension frameSize = frame.getSize();        if (frameSize.height > screenSize.height) {            frameSize.height = screenSize.height;        }        if (frameSize.width > screenSize.width) {            frameSize.width = screenSize.width;        }        frame.setLocation((screenSize.width - frameSize.width) / 2,                          (screenSize.height - frameSize.height) / 2);        frame.setVisible(true);        frame.show();    }}