return dn;
return dn.getNormName();
    public Object normalize( Object value ) throws NamingException    {        LdapDN dn = null;        if ( value instanceof LdapDN )        {            dn = ( LdapDN ) ( ( LdapDN ) value ).clone();        }        else if ( value instanceof Name )        {            dn = new LdapDN( ( Name ) value );        }        else if ( value instanceof String )        {            dn = new LdapDN( ( String ) value );        }                dn.normalize( attrRegistry.getNormalizerMapping() );        return dn;    }