/** The key of the configuration. e.g. sn */
    String LDAP_ATTR_SURNAME = "ldap.attr.surname";

    /** The key of the configuration. e.g. givenName */
    String LDAP_ATTR_GIVEN_NAME = "ldap.attr.givenName";

    /** The key of the configuration. e.g. employeeNumber */
    String LDAP_ATTR_EMPLOYEE_NUMBER = "ldap.attr.employeeNumber";

    /** The key of the configuration. e.g. mail */