mirror of
https://github.com/spring-projects/spring-security.git
synced 2025-07-16 07:13:30 +00:00
a4cd6f4278
This commit adds a documentation note explaining the importance of overriding equals() and hashCode() in custom UserDetails implementations. The default SessionRegistryImpl in Spring Security uses an in-memory ConcurrentMap<Object, Set<String>>, Map<String,SessionInformation> to associate principals with sessions. If a custom UserDetails class does not properly override equals() and hashCode(), user sessions may not be tracked or matched correctly. I believe this helps developers avoid subtle session management issues when implementing custom authentication logic. Signed-off-by: Gurunathan <129361658+Gurunathan16@users.noreply.github.com>