

通过dubbo-compiler的插件生成了接口，会自动生成xxxAsync()方法，但是它只是通过CompletableFuture.completedFuture()包装了同步方法，它仍然会阻塞consumer的业务线程。这么实现的目的是什么？

![image](https://user-images.githubusercontent.com/18373569/216303859-4c8fe6e5-428b-417c-baa5-df4aa444719c.png)

![image](https://user-images.githubusercontent.com/18373569/216304057-e564e268-14e6-40e3-8244-7380fd9c9c85.png)


## Ask your question here
我当前使用dubbo 3.1.4的triple协议(同时使用了IDL+protobuf)，想提供CompletableFuture<Result>返回值的异步调用，应该怎么做？

客户端如果不使用proxy=“nativestub”，会抛出以下错误：

This serialization only support google protobuf messages, but the actual input type is :java.util.concurrent.CompletableFuture

客户端如果使用proxy=“nativestub”，调用kickOffDeviceAsync(),实际上会调用CompletableFuture.completedFuture(kickOffDevice(request));.如此就会造成阻塞了，没有达到异步的目的





*/
    StreamObserver<HelloReply> bidirectionalStream(StreamObserver<HelloReply> streamObserver);
    /**
     * only for test.
     *
     * @param reply
     * @return
     */
    HelloReply sayHello(HelloReply reply);
    void sayHelloServerStream(HelloReply request, StreamObserver<HelloReply> reply);
    void sayHelloServerStream2(Object request, StreamObserver<Object> reply);
    
    java.util.Iterator<HelloReply> iteratorServerStream(HelloReply request);
    reactor.core.publisher.Mono<HelloReply> reactorMethod(HelloReply reactorRequest);
    reactor.core.publisher.Mono<HelloReply> reactorMethod2(reactor.core.publisher.Mono<HelloReply> reactorRequest);
    io.reactivex.Single<HelloReply> rxJavaMethod(io.reactivex.Single<HelloReply> replySingle);
    
    void testMultiProtobufParameters(HelloReply reply1, HelloReply reply2);
    String testDiffParametersAndReturn(HelloReply reply1);
    HelloReply testDiffParametersAndReturn2(String reply1);
    void testErrorServerStream(StreamObserver<HelloReply> reply, HelloReply request);
    void testErrorServerStream2(HelloReply request, HelloReply request2, StreamObserver<HelloReply> reply);
    void testErrorServerStream3(String aa, StreamObserver<HelloReply> reply);
    void testErrorServerStream4(String aa, String bb, StreamObserver<String> reply);
    StreamObserver<HelloReply> testErrorBiStream(HelloReply reply, StreamObserver<HelloReply> observer);
    StreamObserver<HelloReply> testErrorBiStream2(String reply, StreamObserver<HelloReply> observer);
    StreamObserver<String> testErrorBiStream3(StreamObserver<HelloReply> observer);
    StreamObserver<String> testErrorBiStream4(StreamObserver<HelloReply> observer, String str);
}