SpringSecurity HttpSessionSecurityContextRepository Sınıfı

loadContext metodu
SecurityContext nesnesi döner. Şöyle yaparız.

@Override
public SecurityContext loadContext(HttpRequestResponseHolder requestResponseHolder) {
  SecurityContext context = super.loadContext(requestResponseHolder);

  Authentication auth = context.getAuthentication();
  if (auth instanceof OAuth2Authentication) {
    ...
  }
  return context;
}