code: public static <K, V> Cache<K, V> createCache(String cacheName, int ttl, long cleanupInterval/*, Application application, Layer layer*/) {
  		StandardCache cache = new StandardCache(ttl, cleanupInterval);
  		cache.setProperties(new Properties());
  		cache.start();
  		return cache;
  	}
docs: Retrieves a cache from the current layer or creates it.
  Only a root request will be able to embed the constructed cache in the
  application.
  
  @param cacheName       cache service ID
  @param ttl             time to live in seconds
  @param cleanupInterval cleanup interval in seconds
  @return