code: @SuppressWarnings("unchecked")
     public static <K, V> Cache<K, V> getGlobalCache() {
        if (caches.containsKey(GLOBAL_CACHE)) {
           return Cast.as(caches.get(GLOBAL_CACHE));
        }
        return register(getCacheSpec(GLOBAL_CACHE));
     }
docs: Gets global cache.
  
  @return The global cache