@GetMapping("/menu")
        public List<Coffee> readMenu() {
            try{
                return Try.ofSupplier(
                    Bulkhead.decorateSupplier(bulkhead,
                            CircuitBreaker.decorateSupplier(circuitBreaker,() -> coffeeService.getAll())))
                    .recover(CircuitBreakerOpenException.class, Collections.emptyList()) // 熔断异常恢复
                    .recover(BulkheadFullException.class, Collections.emptyList()) // 隔舱异常恢复
                    .get();
            } catch (CircuitBreakerOpenException e) {
                // 如果触发熔断 上面使用recover 的话，此处还能捕获到 CircuitBreakerOpenException?
                return null;
            } catch (BulkheadFullException e) {
                // 如果触发隔舱 上面使用recover 的话，此处还能捕获到 BulkheadFullException?
                return null;
            }
        }