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Re: [messaging-dev] [jakartaee-platform-dev] Compatibility breakages in the JMS API versus future development
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I agree it's worth looking at with a large caveat that we should do this after we get some of the low hanging fruit out with the existing API. Specifically the items around json/xml message marshaling, annotation api, property conversions, etc.
Those would all make a big difference to people on the current API and could be done near term and easily be implemented by everyone now. Reimagining the API would likely take quite a while and be pretty contentious. Not that it wouldn't be worth investigating, just that we'd be further delaying some already delayed work.
Perhaps this as a tentative strategy:
- Messaging 3.x : continues, backward compatible, with backlog items implemented
- Messaging 4.x : sky is the limit, not backwards compatible
Thoughts?
-David
> On Mar 4, 2025, at 3:05 PM, Scott Stark via jakartaee-platform-dev <jakartaee-platform-dev@xxxxxxxxxxx> wrote:
>
> I would say the messaging project is free to deprecate the existing
> JMS API/spec and have the platform put it into legacy mode for future
> deprecation as well. Jakarta Messaging Next can be a completely
> different specification from my perspective.
>
>
> On Tue, Mar 4, 2025 at 4:57 PM Clebert Suconic via
> jakartaee-platform-dev <jakartaee-platform-dev@xxxxxxxxxxx> wrote:
>>
>> How much can we break in the API on future Messaging specifications?
>>
>> We have a 28-30 year old ”legacy debt" in the JMS API, and there are things that are now considered old fashioned. Java Language itself evolved quite a lot obviously, and Messaging itself has changed.. (streaming, asynchronous natures, HA Zones... Cloud replicas, etc.. etc.).
>>
>> Besides the old fashioned usage in Interface, you also have the heavy semantic inference and dictation of what a messaging system is from the spec itself. It would be nice to make things lighter and more compelling for new systems to implement and easier to digest from a new audience.
>>
>> We need to move on from this 28 years old legacy and I think there's still space for a standardized API within Jakarta..
>>
>> I made a car analogy the other day about this: you can certainly make an Old VW Beetle look shiny and new, but it will still be a car from another era. While you can certainly use it and have fun with it, it will never be a modern car, no matter what engine you put in that car.
>>
>> We could of course still invest in the current spec for now, but I think we should aim for something more modern as well. I would love to listen to other people's ideas on this matter.
>>
>> Thank you and hope we are able to make something new in this area.
>>
>> Clebert Suconic
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