Mine

    btDevicesChoice = new ChoiceGroup("choiceGroup", Choice.MULTIPLE);                                            
        btDevicesChoice.setLayout(ImageItem.LAYOUT_DEFAULT | Item.LAYOUT_EXPAND);
        btDevicesChoice.setFitPolicy(Choice.TEXT_WRAP_DEFAULT);                                          



    public void fillWithServers(ChoiceGroup cg) {
        devices = new Vector();
        services = new Vector();

        todo = 1;
        serverGroup = cg;
serverGroup.deleteAll();

    }