泛化调用中
```java
public interface GenericService {

    Object $invoke(String method, String[] parameterTypes, Object[] args) throws GenericException;

}
```
这里可不可以异步调用返回个Future。我的工具实现会有多个 `ReferenceConfig` 缓存，我可以单独再用一个线程池来作为 `$invoke` 的执行上下文。但每个 `ReferenceConfig` 好像都有一组线程来维持，这个本身能不能异步调用？
}
    public String getClient() {
        return client;
    }
    public void setClient(String client) {
        checkName("client", client);
        this.client = client;
    }
    @Parameter(excluded = true)
    public String getUrl() {
        return url;
    }
    public void setUrl(String url) {
        this.url = url;
    }
    public List<MethodConfig> getMethods() {
        return methods;
    }
    @SuppressWarnings("unchecked")
    public void setMethods(List<? extends MethodConfig> methods) {
        this.methods = (List<MethodConfig>) methods;
    }
    public ConsumerConfig getConsumer() {
        return consumer;
    }
    public void setConsumer(ConsumerConfig consumer) {
        ConfigManager.getInstance().addConsumer(consumer);
        this.consumer = consumer;
    }
    public String getProtocol() {