RedisCache extends AbstractCache<K, V> { @Override public CacheStats stats() { return stats; } RedisCache(final String name, final CacheLoader<K, V> cacheLoader,
      final EvictionListener<K, V> evictionListener,
      Serializer<Object> serializer, Client client); @Override void put(final K key, final V value); @Override void put(final K key, final V value, final TimeUnit timeUnit, final long duration); @Override @SuppressWarnings("unchecked") V get(final K key); @Override @SuppressWarnings("unchecked") V invalidate(final K key); @Override boolean contains(final K key); @Override void clear(); @Override long size(); @Override CacheStats stats();  }
@Test public void stats() throws ConnectionException, IOException { assertTrue(cache.stats() != null); }