Hi Ken

Thanks for bringing this !

I don't think option 2 is actually a good idea, at least today, as
it's a change in the current behavior. I would rather prefer option 3
(different interfaces) on 6.x and deprecated AsyncCallback on 7.x
trend.

Regards
JB

On Mon, Nov 25, 2024 at 7:24 PM Ken Liao <kenlia...@gmail.com> wrote:
>
> Hey dev community,
>
> Would like to get your opinion on this. To make ActiveMQ Classic fully
> support JMS 2.0/Jakarta Messaging 3.1, it needs to support
> CompletionListener interface for specifying callback once the asynchronous
> send is completed. Currently, ActiveMQ Classic has its own public interface
> AsyncCallback for client applications to specify the callback. However, the
> behaviour of AsyncCallback is not JMS 2.0 compliant and it is specific to
> ActiveMQ.
>
>  In my opinion, it will be a confusing experience for users because there
> are two mechanisms for specifying callbacks and I wonder if there are any
> advantages of using AsyncCallback over CompletionListener. Either:
> 1. Deprecate AsyncCallback (throw exception) at the release where we
> support CompletionListener.
> 2. Change AsyncCallback behaviour to align with CompletionListener at that
> release.
> 3. Keep supporting these two different interfaces/behavior going forward.
>
> Personally I am advocating for 2 but would like to hear what the community
> thinks and check if I am missing something.
>
> Thanks,
> Ken

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