....
        $self->{_DATA} = $self->{_OBJECTS}->{serializer}->thaw($raw_data);
        unless ( defined $self->{_DATA} ) {
            #die $raw_data . "\n";
            return $self->set_error( "load(): couldn't thaw() data using $self->{_OBJECTS}->{serializer} :" .
                                    $self->{_OBJECTS}->{serializer}->errstr );
        }