public LdapUserTester.PropertyMapping getNameField() {
        return nameField;
    }
Returns the LDAP field name that the user's name is stored in. By default
this is "cn". Another common value is "displayName".

@return the LDAP field that that corresponds to the user's name.
xmppserver/src/main/java/org/jivesoftware/openfire/ldap/LdapManager.java