How to use proxy with paho version 1.2.1 or 1.2.2!

@icraggs , @a-zink
Thanks for the suggestion and detail information/snippet provided.

I was looking for the proxy support and it was working with version 1.2.0, with the suggested solution.

But now I need to move to the v1.2.1 or later.

While seeing the multiple thread it is mentioned as:
- As of now there is no "Native proxy support without providing custom SocketFactory" with paho mqtt java client, the following thread is open for the same:
https://github.com/eclipse/paho.mqtt.java/issues/575

What is the plan to deliver this approach?

- If I consider current v1.2.1 as discussed in the following thread:
https://github.com/eclipse/paho.mqtt.java/issues/573

And considering the fix with custom proxy I am facing the issue with connection/disconnection, which i consider issue is already raised:
https://github.com/eclipse/paho.mqtt.java/issues/637

Could you provide me some insight how I can proceed?

Note: I am using SSL(TLS v1.2) to communicate with the various cloud provider.