Named Exception translation filter
AuthenticationEntryPoint is of type
ExceptionTranslationFilterConfig#getAuthenticationEntryPointName() is not empty,
use this name for a lookup of an authentication filter and use the entry point of this filter.
if the name is empty, use
a servlet attribute name. Previous authentication filter should put an entry point in this
if still no entry point was a found, use
Http403ForbiddenEntryPoint as a default.