Adding Menu Bar causes window to grow inordinatately

Compile and run the following files. Press the button(which adds a menubar).
On NT, the window is resized much larger than necessary and its origin is moved.

/*
    Form1.java

    NOTE: This file is a generated file.
          Do not modify it by hand!
*/
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Rectangle;
import java.awt.Insets;
import java.lang.Math;
import java.lang.String;

// custom imports for Form1
// add your custom import statements here


class Form1 extends java.awt.Frame implements java.awt.event.WindowListener, java.awt.event.ActionListener
{
    public Rectangle DURectangle( int x, int y, int w, int h )
    {
        String alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
        FontMetrics fm = getFontMetrics( getFont() );
        double fw = ( fm != null ) ? ( fm.stringWidth( alphabet ) / alphabet.length() ) : 0;
        double fh = ( fm != null ) ? ( fm.getHeight() / 2.0 ) : 0.0;

        return new Rectangle( (int) Math.round( ( (double)fw * (double)x ) / 4.0 ),
                              (int) Math.round( ( (double)fh * (double)y ) / 4.0 ),
                              (int) Math.round( ( (double)fw * (double)w ) / 4.0 ),
                              (int) Math.round( ( (double)fh * (double)h ) / 4.0 ) );
    }

    public void DUPositionComponent( java.awt.Component comp, int x, int y, int w, int h, java.awt.Insets formInsets )
    {
        Rectangle rect = DURectangle( x, y, w, h );
        if( formInsets != null ) {
             rect.x += formInsets.left;
             rect.y += formInsets.top;
        }
        java.awt.Dimension minSize = comp.getMinimumSize();
        if( rect.width < minSize.width ) {
            rect.width = minSize.width;
        }
        if( rect.height < minSize.height ) {
            rect.height = minSize.height;
        }
        comp.setBounds( rect );
    }

    public void setMainForm( boolean isMainForm )
    {
        __mainForm = isMainForm;
    }
    public boolean isMainForm()
    {
        return __mainForm;
    }
    public boolean create() throws java.lang.Exception
    {
        setResizable(true);

        java.awt.Container contentPane = getContentPane();
        Font defaultFont = new Font( "Dialog", Font.PLAIN, 12 );
        setFont( defaultFont );

        boolean retval = true;
        addNotify();
        Insets formInsets = contentPane.getInsets();
        contentPane.setBackground( java.awt.Color.lightGray );
        contentPane.setForeground( java.awt.Color.black );

        contentPane.setLayout( null );
        contentPane.add(lb_1);
        contentPane.add(label_1);
        contentPane.add(cb_1);
        DUPositionComponent( this, 8, 97, 393, 230, null );
        addWindowListener(this);

        DUPositionComponent( lb_1, 10, 120, 370, 80, formInsets );
        lb_1.setFont( defaultFont );
        lb_1.setBackground( java.awt.Color.white );
        lb_1.setForeground( java.awt.Color.black );
        lb_1.setEnabled(true);
        lb_1.setVisible(true);


        DUPositionComponent( label_1, 10, 100, 370, 15, formInsets );
        label_1.setText( "The bottom of this list box should be aligned at the bottom of the form." );
        label_1.setAlignment(java.awt.Label.LEFT);
        label_1.setFont( defaultFont );
        label_1.setBackground( java.awt.Color.lightGray );
        label_1.setForeground( java.awt.Color.black );
        label_1.setEnabled(true);
        label_1.setVisible(true);


        cb_1.addActionListener(this);
        DUPositionComponent( cb_1, 170, 35, 40, 14, formInsets );
        cb_1.setFont( defaultFont );
        cb_1.setBackground( java.awt.Color.lightGray );
        cb_1.setForeground( java.awt.Color.black );
        cb_1.setEnabled(true);
        cb_1.setVisible(true);



        setVisible(true);
        return retval;
    }

    public synchronized boolean destroy()
    {
        if( (java.awt.Container)this instanceof java.awt.Window ) {
            ((java.awt.Window)(java.awt.Container)this).dispose();
        } else {
            removeNotify();
        }
        if( isMainForm() ) {
            System.gc();
            System.runFinalization();
            System.exit(0);
        }
        return true;
    }


    public boolean defaultHandleEvent(java.awt.Event event)
    {
        return false;
    }
    public void defaultProcessEvent(java.awt.AWTEvent event)
    {
        super.processEvent(event);
    }

    public void windowClosed( java.awt.event.WindowEvent event )
    {
    }
    public void windowOpened( java.awt.event.WindowEvent event )
    {
    }
    public void windowClosing( java.awt.event.WindowEvent event )
    {
        Object eventTarget = event.getSource();
        if( eventTarget == this ) {
            Form1_windowClosing( event );
        } else {
            unhandledEvent( "java.awt.event.WindowListener", "windowClosing", event );
        }
    }
    public void windowIconified( java.awt.event.WindowEvent event )
    {
    }
    public void windowActivated( java.awt.event.WindowEvent event )
    {
    }
    public void windowDeiconified( java.awt.event.WindowEvent event )
    {
    }
    public void windowDeactivated( java.awt.event.WindowEvent event )
    {
    }

    public void actionPerformed( java.awt.event.ActionEvent event )
    {
        Object eventTarget = event.getSource();
        if( eventTarget == cb_1 ) {
            cb_1_actionPerformed( event );
        } else {
            unhandledEvent( "java.awt.event.ActionListener", "actionPerformed", event );
        }
    }
    public Form1()
    {
        super();
    }
    public void processEvent(java.awt.AWTEvent event)
    {

        defaultProcessEvent(event);
    }
    public void unhandledEvent( String listenerName, String methodName, java.lang.Object event )
    {

    }
    public java.awt.Container getContentPane()
    {
        return this;
    }
    public boolean Form1_windowClosing(java.awt.event.WindowEvent event)
    {

        setVisible(false);
        destroy();
        return false;
    }
    public void cb_1_actionPerformed( java.awt.event.ActionEvent event )
    {
        
        menu_1_Item0.setLabel("Item0");
        menu_1.add(menu_1_Item0);
        menu_1_Item1.setLabel("Item1");
        menu_1_Item0.add(menu_1_Item1);
        menu_1_Item2.setLabel("Item2");
        menu_1_Item0.add(menu_1_Item2);
        menu_1_Item3.setLabel("Item3");
        menu_1.add(menu_1_Item3);
        menu_1_Item5.setLabel("Item5");
        menu_1_Item3.add(menu_1_Item5);
        menu_1_Item6.setLabel("Item6");
        menu_1_Item3.add(menu_1_Item6);
        menu_1_Item4.setLabel("Item4");
        menu_1.add(menu_1_Item4);
        menu_1_Item7.setLabel("Item7");
        menu_1_Item4.add(menu_1_Item7);
        menu_1_Item8.setLabel("Item8");
        menu_1_Item4.add(menu_1_Item8);
        setMenuBar( menu_1 );

        
    }
    /****************************************
     * data members
     ****************************************/

    boolean __mainForm = false;

    private java.awt.MenuBar menu_1 = new java.awt.MenuBar();
    private java.awt.Menu menu_1_Item0 = new java.awt.Menu("");
    private java.awt.MenuItem menu_1_Item1 = new java.awt.MenuItem("");
    private java.awt.MenuItem menu_1_Item2 = new java.awt.MenuItem("");
    private java.awt.Menu menu_1_Item3 = new java.awt.Menu("");
    private java.awt.MenuItem menu_1_Item5 = new java.awt.MenuItem("");
    private java.awt.MenuItem menu_1_Item6 = new java.awt.MenuItem("");
    private java.awt.Menu menu_1_Item4 = new java.awt.Menu("");
    private java.awt.MenuItem menu_1_Item7 = new java.awt.MenuItem("");
    private java.awt.MenuItem menu_1_Item8 = new java.awt.MenuItem("");
    private java.awt.List lb_1 = new java.awt.List();
    private java.awt.Label label_1 = new java.awt.Label();
    private java.awt.Button cb_1 = new java.awt.Button();

    // add your data members here
}