BeanIds now define all default bean names with underline prefix, a namespace like ‘org.springframework.security.’ should be more appreciate, and this can also avoid bean name conflict with other components, the spring-integration project seems use this strategy already.
Luke Taylor said:
The number of global bean Ids has been drastically reduced (and will hopefully reduce more), but I've made the change for consistency.
Note that these Ids are not generally intended for anything other than internal use, as there is no guarantee that the namespace will create a specific set of global beans. The exceptions are the FilterChainProxy which is referenced through the web.xml and the AuthenticationManager.