Add Support for MQTT

[AayushSaini101]

Why do we need this improvement?

Presently, Java-template is supported only limited protocol kafka, ibmq and it be good to extend protocol with mqtt as https://github.com/asyncapi/java-spring-template/tree/master/tests is already upgradedthe

How will this change help?

Java-template will support new protocol for the usecaseuse case

Screenshots

No response

How could it be implemented/designed?

Reference: https://github.com/asyncapi/java-spring-template/tree/master/tests

🚧 Breaking changes

Yes

👀 Have you checked for similar open issues?

• I checked and didn't find a similar issue

🏢 Have you read the Contributing Guidelines?

• I have read the Contributing Guidelines

Are you willing to work on this issue?

Yes I am willing to submit a PR!

[github-actions]

Welcome to AsyncAPI. Thanks a lot for reporting your first issue. Please check out our contributors guide and the instructions about a basic recommended setup useful for opening a pull request.
Keep in mind there are also other channels you can use to interact with AsyncAPI community. For more details check out this issue.

[AayushSaini101]

Hello guys, @derberg @dalelane If it's fine with you, I would be glad to work on this issue under the Bounty Program, Q2-2024 as this is a potential issue for the Program.

I am already familiar with the java-template and raised PR and the Java template requires lots of development,
Bounty Issue submission link for ease of access.
Thank you :)

[derberg]

I'm not maintainer of this repo, not my decision.

I recommend you first try to contribute few minor issues in this template to demonstrate to current maintainers you have relevant experience to work on much bigger tasks.

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity 😴

It will be closed in 120 days if no further activity occurs. To unstale this issue, add a comment with a detailed explanation.

There can be many reasons why some specific issue has no activity. The most probable cause is lack of time, not lack of interest. AsyncAPI Initiative is a Linux Foundation project not owned by a single for-profit company. It is a community-driven initiative ruled under open governance model.

Let us figure out together how to push this issue forward. Connect with us through one of many communication channels we established here.

Thank you for your patience ❤️