Custom interceptor with Position.LAST set programmatically doesn't work

EmbeddedCacheManager manager = new DefaultCacheManager();
      Configuration c2 = new ConfigurationBuilder()
            .customInterceptors()
               .addInterceptor()               .position(InterceptorConfiguration.Position.LAST).interceptor(new MyInterceptor())               
            .build();

      manager.defineConfiguration("interceptors", c2);
      Cache<String, String> cache = manager.getCache("interceptors");
      cache.put("hello", "world");