https://docs.spring.io/spring-amqp/api/org/springframework/amqp/core/AmqpAdmin.html
    beanName = "amqpAdmin";

org.springframework.amqp.rabbit.core.RabbitAdmin
https://docs.spring.io/spring-amqp/api/org/springframework/amqp/rabbit/core/RabbitAdmin.html
  ...
	/**
	 * If {@link #setAutoStartup(boolean) autoStartup} is set to true, registers a callback on the
	 * {@link ConnectionFactory} to declare all exchanges and queues in the enclosing application context. If the
	 * callback fails then it may cause other clients of the connection factory to fail, but since only exchanges,
	 * queues and bindings are declared failure is not expected.
	 *
	 * @see InitializingBean#afterPropertiesSet()
	 * @see #initialize()
	 */
	@Override
	public void afterPropertiesSet() {
		synchronized (this.lifecycleMonitor) {

			if (this.running || !this.autoStartup) {
				return;
			}

			if (this.retryTemplate == null && !this.retryDisabled) {
				this.retryTemplate = new RetryTemplate();
				this.retryTemplate.setRetryPolicy(new SimpleRetryPolicy(DECLARE_MAX_ATTEMPTS));
				ExponentialBackOffPolicy backOffPolicy = new ExponentialBackOffPolicy();
				backOffPolicy.setInitialInterval(DECLARE_INITIAL_RETRY_INTERVAL);
				backOffPolicy.setMultiplier(DECLARE_RETRY_MULTIPLIER);
				backOffPolicy.setMaxInterval(DECLARE_MAX_RETRY_INTERVAL);
				this.retryTemplate.setBackOffPolicy(backOffPolicy);
			}
      ...
    }
    ...
  }