为什么我需要一个no-args构造函数来在CDI中使用带有Constructor注入的ApplicationScoped bean？

我正在尝试将构造函数注入模式应用于我的CDI应用程序中的bean，并且遇到以下错误消息：

I'm trying to apply the constructor injection pattern to beans in my CDI application and am encountering the following error message:

15:18:11,852 ERROR [izone.adams.webapp.error.IzoneExceptionHandler] (default task-40) org.jboss.weld.exceptions.UnproxyableResolutionException: WELD-001435: Normal scoped bean class webapp.util.LoginManagerAction is not proxyable because it has no no-args constructor - <unknown javax.enterprise.inject.spi.Bean instance>.
        at org.jboss.weld.bean.proxy.DefaultProxyInstantiator.validateNoargConstructor(DefaultProxyInstantiator.java:50)

的确，为了使用构造函数注入模式，我有意设计了一个需要参数的构造函数的类：

Indeed, in order to use the constructor injection pattern, I have intentionally designed my class with a single constructor requiring arguments:

@ApplicationScoped
@Typed(LoginManagerAction.class)
public class LoginManagerAction extends UtilBasicDispatchAction {

  @Inject
   public LoginManagerAction( SessionManager sessionManager, JMSHealthCheckService jmsHealthCheckService) {
       super();
       this.sessionManager = sessionManager;
       this.jmsHealthCheckService = jmsHealthCheckService;
   }

    ...
    ...

}

浏览 CDI不可提供的bean类型的规范，我看到：

3.15。不可提供的bean类型

容器使用代理提供某些功能。某些合法bean类型无法通过
代理容器：

The container uses proxies to provide certain functionality. Certain legal bean types cannot be proxied by the container:

• 没有非私有构造函数但没有的类参数，


• 声明为final的类，


• 具有public，protected或
  默认可见性的非静态最终方法的类，


• 原始类型，


• 和数组类型。

• classes which don’t have a non-private constructor with no parameters,
• classes which are declared final,
• classes which have non-static, final methods with public, protected or default visibility,
• primitive types,
• and array types.

如果注入点解析为
bean，则bean类型必须是可代理的：

A bean type must be proxyable if an injection point resolves to a bean:

• 需要客户端代理，或者


• 有一个关联装饰器，或者


• 有一个绑定拦截器。

否则，容器会自动检测到问题，并将
视为部署问题。

Otherwise, the container automatically detects the problem, and treats it as a deployment problem.

在正常范围和伪范围它声明：

所有正常范围必须显式声明@NormalScope，以向容器指示客户端代理是必需的。

All normal scopes must be explicitly declared @NormalScope, to indicate to the container that a client proxy is required.

给定 @ApplicationScoped bean根据定义 @NormalScope ，我需要一个非私有的无参数构造函数。那么我需要一个受保护的无参数构造函数来满足CDI规范吗？我尝试过使用受保护的无参数构造函数，它似乎有效，但我不明白WELD在这种情况下是如何工作的;在哪些条件下使用no-args构造函数？为什么这在CDI中是一个要求？

Given @ApplicationScoped beans are by definition @NormalScope, I need to have a non-private no-args constructor. So then I need to have a protected no-arg constructor just to satisfy the CDI spec? I've tried with a protected no-args constructor, and it seems to work, but I do not understand how WELD is working in that case; in which conditions does it use the no-args constructor? Why is this a requirement in CDI at all?

Weld是否只使用no-arg来创建代理，但在实际调用底层实现时，它使用了注入带参数的基于构造函数？

Does Weld only use the no-arg to create the proxy, but when actually calling the underlying implementation, it uses the inject-based constructor with arguments?