[Feature] Add AsyncRpcResult test sample in dubbo-samples

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Apache Dubbo Component

Java Samples (apache/dubbo-samples)

Descriptions

Background

AsyncRpcResult is the key class for asynchronous calls in Dubbo Java SDK, but the official dubbo-samples repository does not contain any test case or example to demonstrate its correct usage. This makes it hard for users to understand how to:

1. Obtain the result via AsyncRpcResult after an async call.
2. Handle timeout and exceptions properly.
3. Ensure compatibility across Dubbo versions.

Proposal

Create a new sub-module dubbo-samples-async-result under 2-advanced/ with:

• A provider that exposes an async service.
• A consumer that uses AsyncRpcResult to get the response and handle timeout/exception.
• Docker-based integration tests similar to existing samples (dubbo-samples-annotation, etc.).

Acceptance Criteria

• New module builds and passes ./test/run-tests.sh 2-advanced/dubbo-samples-async-result.
• README explains how to run the demo and the key points of AsyncRpcResult.
• No breaking changes to existing samples.

Volunteer

I’m willing to submit a PR once the feature request is accepted.

Related issues

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Are you willing to submit a pull request to fix on your own?

• Yes I am willing to submit a pull request on my own!

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