Caching Spring Data repositories / CacheEvict not working - spring

Question

I am using Spring Boot, Spring Data, with QueryDSL. Most of my queries are QueryDSL based. I want to implement a simple cache that stores User queries, and once a single entity is updated/saved then the entire Cache is cleared.
So here is my Repository Interface:
#Repository
#CacheConfig(cacheNames = "us")
public interface UserRepository extends JpaRepository<User, Long>, QueryDslPredicateExecutor<User> {
#Cacheable
List<User> findAll();
#Override
#Cacheable
List<User> findAll(Sort sort);
#Override
#Cacheable
List<User> findAll(Iterable<Long> longs);
#Override
#CacheEvict(allEntries = true)
<S extends User> List<S> save(Iterable<S> entities);
#Override
#CacheEvict(allEntries = true)
<S extends User> S saveAndFlush(S entity);
#Override
#Cacheable
Page<User> findAll(Pageable pageable);
#Override
#CacheEvict(allEntries = true)
<S extends User> S save(S entity);
#Override
#Cacheable
User findOne(Long aLong);
#Override
#Cacheable
Iterable<User> findAll(Predicate predicate);
#Override
#Cacheable
User findOne(Predicate predicate);
#Override
#Cacheable
Iterable<User> findAll(Predicate predicate, Sort sort);
#Override
#Cacheable
Page<User> findAll(Predicate predicate, Pageable pageable);
}
As you can see I have cached all "Find" methods and using Save methods to Evict all entries. Usually the ones used are:
Page<User> findAll(Predicate predicate, Pageable pageable);
<S extends User> S save(S entity);
The Caching is set exclusively on the repositories, nothing on Services/Controllers etc.
Here is my config:
#Bean
public CacheManager cacheManager() {
GuavaCacheManager manager = new GuavaCacheManager();
CacheBuilder<Object, Object> builder = CacheBuilder.newBuilder()
.removalListener(new RemovalListener<Object, Object>() {
#Override
public void onRemoval(RemovalNotification<Object, Object> notification) {
LOG.info("Cache evicted: " + notification);
}
})
.maximumSize(100);
manager.setCacheBuilder(builder);
return manager;
}
#Bean
public KeyGenerator keyGenerator() {
return new SimpleKeyGenerator();
}
I should also add that the User entity has a couple of subclasses but I am querying everything with the UserRepository
The problem is that even though my Search requests are successfully cached the cache is never evicted when I perform a save.
Anything I'm doing wrong?