This interface has been added to break the type references from
weblogic.management.security to
weblogic.management.configuration.SecurityConfigurationMBean.
This interface is extended by the SecurityConfigurationMBean
interface.
Note: We did not move the pre-existing methods getDefaultRealm and
setDefaultRealm here because that would affect the ordering of the
attribute for DefaultRealm in schema for WLS config.xml and lead to
compatibility problems. Instead we have defined shadow versions here
(getDefaultRealmInternal and setDefaultRealmInternal).