Falha ao carregar JApplet no Browser

Programação Java
#1

Olá, boa noite.
:wink:

Estou montando uma applet, no momento esla esta da seguinte forma.

public class SwingApplet extends JApplet {

    /**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	JButton button;

    public void init() {
    	
    	// Force SwingApplet to come up in the System L&F
    	String laf = UIManager.getSystemLookAndFeelClassName();
    	try {
    		this.setLayout(null);
    		this.setBackground(Color.black);
    		UIManager.setLookAndFeel(laf);
    		} catch (UnsupportedLookAndFeelException exc) {
    			System.err.println("Warning: UnsupportedLookAndFeel: " + laf);
    			} catch (Exception exc) {
    				System.err.println("Error loading " + laf + ": " + exc);
    				}
    			
    			new principal(this).start();
    }

}

Eu mando esta JApplet para um Thread que adciona os componentes.

public class principal extends Thread{
	private JApplet applet;
	private JButton jButton1 = new javax.swing.JButton();
        private JButton jButton2 = new javax.swing.JButton();
	private JButton jButton3 = new javax.swing.JButton();
	private JLabel jLabel1 = new JLabel("Mastery");
	private JPanel jPanel1 = new JPanel();
	private String tipo;
	
	public void setTipo(String tipo){
		this.tipo = tipo;
	}
	
	public String getTipo(){
		return this.tipo;
	}
	
	public principal(JApplet applet){
		this.applet = applet;
	}
	
	public JPanel getJPanel1(){
		return this.jPanel1;
	}
	
	public void removeJPanel(){
		jPanel1.removeAll();
	}
	
	public void repaintAll(){
		this.jPanel1.repaint();
		this.applet.repaint();
	}
	
	public void run(){

		jButton1.setToolTipText("Ver faltas - 'FLT'");
		jButton1.setText("Base");
		jButton1.setActionCommand("1");
		jButton1.addActionListener(new Listener(this));
	
/*
		jButton2.setToolTipText("Ver pedido - 'PT'");
		jButton2.setText("P. Transferência");
		jButton2.setActionCommand("2");
		jButton2.addActionListener(new Listener(this));		
		
		
		jButton3.setToolTipText("Ver estoque OK - 'STK'");
		jButton3.setText("Materiais OK");
		jButton3.setActionCommand("3");
		jButton3.addActionListener(new Listener(this));
		
		jPanel1.setLayout(null);
		jPanel1.setBackground(null);
		jPanel1.setBorder(javax.swing.BorderFactory.createEtchedBorder());

		jLabel1.setFont(new Font("Arial", 1, 50));

//.addComponet(...)

Cada botão tem um evento, e oara cada evento ele abre componentes seing diferentes. E um dos eventos, ele carrega um outro JPanel painted com Graphics, O que me deixa realmente encabulado, é que no eclipse ele roda certinho mas no Browser ele congele o painel onde o painel com o desenho deveria ser adcionado.

Painel com o desenha

public class BarChart extends JPanel implements Runnable{
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	private JPanel panel;
	private Rectangle rectangle;
	private ArrayList<matriz> dds;
	
    public BarChart(JPanel panel,
    		int x, int y, int width, int height,
    		ArrayList<matriz> dds) {
    	
    	this.panel = panel;
    	this.setLayout(null);
    	this.rectangle = new Rectangle(x, y, width, height);
    	this.dds = dds;
    }

	public void paint(Graphics g) {
        g.setColor(Color.white);
        
        g.fillRect(0, 0, this.getSize().width - 1, this.getSize().height - 1);

        g.setColor(Color.BLACK);
        g.drawLine(10, this.getSize().height - 20, this.getSize().width - 20, this.getSize().height - 20);
        
        g.drawLine(20, 20, 20, this.getSize().height - 10);
        
        if(true){
        	int a[] = {15, 20, 25};
        	int b[] = {30, 5, 30};
            g.fillPolygon(getPolygon(a, b, 3));    
        }
        
        if(true){
        	int v1 = this.getSize().width;
        	int v2 = this.getSize().height;
        	int a[] = {v1 - 20, v1 - 5, v1 - 20};
        	int b[] = {v2 - 25, v2 - 20, v2 - 15};
            g.fillPolygon(getPolygon(a, b, 3));    
        }
        if(true){
        	int x = this.getSize().width;
        	int y = this.getSize().height;
        	float max = dds.get(0).getQtd();
        	float col = (float) x / (float) dds.size() - 5;
        	int ix = 30;
        	for(int i = 0; i < dds.size(); i++){
        		float pg = (float)dds.get(i).getQtd() / max;
        		//System.out.println(y);
        		g.setColor(cor(i));
        		g.fillRect(ix, (int)((float)y - ((float)y * pg)+30), (int)col, (int)((float)y * pg)-49);
        		System.out.println((int)((float)y * pg)+60);
        		ix += (int)col + 5;
        	}
        }
    }
	
	private Color cor(int i){
		if(i == 0){return Color.blue;}
		if(i == 1){return Color.cyan;}
		if(i == 2){return Color.darkGray;}
		if(i == 3){return Color.gray;}
		if(i == 4){return Color.green;}
		if(i == 5){return Color.lightGray;}
		if(i == 6){return Color.magenta;}
		if(i == 7){return Color.orange;}
		if(i == 8){return Color.red;}
		if(i == 9){return Color.yellow;}
		if(i == 10){return Color.black;}
		return Color.black;
	}
    
    private Polygon getPolygon(int[] xP, int[] yP, int lados){
    	return new Polygon(xP, yP, lados);
    }

	@Override
	public void run() {
		if(this.rectangle!=null){this.setBounds(this.rectangle);};
		if(this.panel!=null){this.panel.add(this);this.panel.repaint();};
		
	}
}

Estou realmente encafifado com isto

#2