dn.normalize( registries.getAttributeTypeRegistry().getNormalizerMapping() );
checkCreateContainer( dn );
dn.remove( dn.size() - 1 );
dn.add( SchemaConstants.OU_AT + "=matchingRules" );
dn.normalize( registries.getAttributeTypeRegistry().getNormalizerMapping() );
checkCreateContainer( dn );
dn.remove( dn.size() - 1 );
dn.add( SchemaConstants.OU_AT + "=attributeTypes" );
dn.normalize( registries.getAttributeTypeRegistry().getNormalizerMapping() );