Question: Where are JEPs discussed?

Alex Buckley alex.buckley at
Thu May 16 15:33:51 UTC 2019

Thanks Adam, you're welcome. The science of JEPs is not terribly 
difficult, but it's not widely examined either, so it's good to discuss.


On 5/16/2019 2:30 AM, Adam Farley8 wrote:
> Thanks for your insight too Alex. :)
> Sorry for the delay. I didn't get emails for any of your replies, and
> had to read the archives.
> Best Regards
> Adam Farley
> IBM Runtimes
> On 5/9/2019 4:55 AM, Andrew Haley wrote:
>> > On 5/8/19  2:37 PM, Adam Farley8 wrote:
>> >>  Adam Farley8/UK/IBM wrote on 08/05/2019 14:35:59:
>> >>
>> >>>  Does anyone know the answer to this question, raised on jep-changes:
>> >>>
>> >>>  "What's a good way to stay informed about new JEPs and changes to
>> >>>  existing JEPs?"
>> >
>> > I'm  not sure there is a single place, really. There are OpenJDK
>> > projects,  and occasionally one will turn into a JEP. JEPs are
>> > announced  on the jdk-dev list. Detailed discussion is on the project
>> > list.
>> "JEPs  are announced on the jdk-dev list." is misleading. There are
>> announcements  about JEPs on jdk-dev, sure, but the announcements are not
>> about the  creation of new JEPs [*]. The announcements are about the
>> readiness  of pre-existing candidate JEPs for a specific JDK release.
>> I suppose  that a candidate JEP which has been kicked around on a Project
>> or Group  list for years, and is now being announced on jdk-dev for
>> targeting,  might be considered "new" in the sense of "new to the JDK
>> Project".  But it's also easy to imagine that a JEP which has been kicked
>> around on  a Project or Group list for months is "new" when, on reaching
>> candidate  status, it receives a number -- after all, the announcement on
>> the Project  or Group list is the only one which actually labels a JEP as
>> "new"  (e.g. "New candidate JEP: 341: Default CDS Archives").
>> All in all,  it's best to be clear about the stage a JEP is in -- draft,
>> candidate,  and targeted are the main ones -- so that people don't assume
>> that JDK  N will have feature X just because a JEP issue exists in JBS.
>> Alex
>> [*] Very  occasionally, there genuinely is an announcement on jdk-dev
>> about the  creation of a new JEP (e.g. JEPs 335 and 336 in June 2018)
>> because the  JEP will interest many Projects and Groups. And, very
>> occasionally,  JEP owners advertise their draft JEPs on jdk-dev, because
>> of the wide  readership. But it's the exception, not the rule, to see
>> JEPs mentioned  on jdk-dev before they're ready to target a release.
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