bankDriver = (IBankDriver) DriverUtil.chooseDriver(bankData.getByteArray()); if (bankDriver != null) { bankData.setDriver(bankDriver); } else {
bankData.setDriver(); if (bankData.getDriver().isNullDriver()) {
    void revalidateDriver() {        bankDriver = (IBankDriver) DriverUtil.chooseDriver(bankData.getByteArray());        if (bankDriver != null) {            bankData.setDriver(bankDriver);        } else {            try {                setClosed(true);            } catch (PropertyVetoException e) {                ErrorMsg.reportStatus(e);            }	}    }