Java Programming

Hi there,

I have these both functions:

private void changeKonfig(Locale loc){

    spra = loc;
    System.out.println("spra: " + spra);
    ResourceBundle bundle =ResourceBundle.getBundle("Texte",loc);
    Enumeration<String> e=bundle.getKeys();
    while(e.hasMoreElements()){
        String k=e.nextElement();
        String v_s=bundle.getString(k);
        UIManager.put("DefaultText."+k,v_s);
    }
    updateComponents();
    pack();
}

private void updateComponents(){
    Enumeration<JComponent> e=v.elements();
    while(e.hasMoreElements())
        e.nextElement().updateUI();
}

Can anyone tell me why I always get an NullPointerException when I try to access my "display" within these two functions? Anywhere else is no problem ...

Thanks