@Override
    public void invalidate() {
        lock.tryLock(__ -> registeredServicesCache.values().forEach(Cache::invalidateAll));
    }
This is {@link DefaultPrincipalAttributesRepositoryCache}.

@author Misagh Moayyed
@since 6.1.0
core/cas-server-core-authentication-attributes/src/main/java/org/apereo/cas/authentication/principal/cache/DefaultPrincipalAttributesRepositoryCache.java