public SwingWindowPeer(SwingToolkit toolkit, Window window, JInternalFrame jComponent) { super(toolkit, window, jComponent);
public SwingWindowPeer(SwingToolkit toolkit, Window window) { super(toolkit, window, new JInternalFrame()); SwingToolkit.copyAwtProperties(window, jComponent);
    public SwingWindowPeer(SwingToolkit toolkit, Window window, JInternalFrame jComponent) {        super(toolkit, window, jComponent);    }