public void clearAll(JTextField taskName, JComboBox type, JComboBox status, JTextField customer, JComboBox taskManager,
            JDateChooser expStart, JDateChooser expEnd, JTextField expTimeUsed, JComboBox priority, JList Listuser, JList ListUsersOnTask) throws SQLException, IOException, ParseException {

        DefaultListModel model = (DefaultListModel) Listuser.getModel();
        DefaultListModel modelOnTask = (DefaultListModel) ListUsersOnTask.getModel();

        taskName.setText("");
        type.setSelectedIndex(0);
        status.setSelectedIndex(0);
        customer.setText("");
        taskManager.setSelectedIndex(0);
        expStart.setDate(getCurrentDate());
        expEnd.setDate(getCurrentDate());
        expTimeUsed.setText("");
        priority.setSelectedIndex(0);

        model.clear();
        modelOnTask.clear();

        fillList(Listuser, userList);

    }