AccessControlHandlerCfgDefn definition =
AccessControlHandlerCfgDefn.getInstance();
ClassPropertyDefinition propertyDefinition =
definition.getJavaClassPropertyDefinition();
Class<? extends AccessControlHandler> providerClass =
propertyDefinition.loadClass(className, AccessControlHandler.class);
AccessControlHandler<? extends AccessControlHandlerCfg> provider =
(AccessControlHandler<? extends AccessControlHandlerCfg>)
providerClass.newInstance();
if (configuration != null)