@Override
    public void setSystemPropertiesModeName(String constantName) throws IllegalArgumentException {
        super.setSystemPropertiesModeName(constantName);
        Constants constants = new Constants(PropertyPlaceholderConfigurer.class);
        this.systemPropertiesMode = constants.asNumber(constantName).intValue();
    }
    @Override
    public void setSystemPropertiesMode(int systemPropertiesMode) {
        super.setSystemPropertiesMode(systemPropertiesMode);