有三个处理程序将自己注册到接口注册表( Set<Interfaces> )启动期间
下面是一个例子

@Configuration
public class CardAdapterHandler implements PaymentAdapterListener {

    @Autowired
    private InterfaceRegistry interfaceRegistry;

    @EventListener(ApplicationStartedEvent.class)
    public void init() {
        interfaceRegistry.setListener(this);
    }
}

二等舱

@Configuration
public class CashAdapterHandler implements PaymentAdapterListener {

    @Autowired
    private InterfaceRegistry interfaceRegistry;

    @EventListener(ApplicationStartedEvent.class)
    public void init() {
        interfaceRegistry.setListener(this);
    }
}

以此类推。。
Spring Boot-2.2.10.释放
既然有多个类在侦听applicationstartedevent，那么多个springbean会同时侦听applicationstartedevent吗？在应用程序启动期间是否有可能发生concurrentmodificationexception？