Timeline for 11.0.4 development

[Langer, Christoph]

Hi Goetz,

> I propose to explicitly state the following dates on
> https://wiki.openjdk.java.net/display/JDKUpdates/JDK11u
> 
> As for 11.0.3, I can do the builds, tests and tags proposed here until RC phase.
> JDK 11.0.4 timeline
> 
>   *   March 2019 jdk11u-dev forest open
>   *   Tuesday, April 30: Branch jdk11u-dev to jdk11u
>   *   Wednesday, Mai 1 2019: Tag 11.0.4+1
>   *   Wendesday, Mai 29 2019: Tag 11.0.4+5 RDP2
>   *   Wednesday June 26 2019: Tag 11.0.4+9 RC phase (code freeze)
>   *   Mid July 2019 GA
> 
> JDK 11.0.5 timeline
> 
>   *   Wednesday, Mai 1 2019 Tag 11.0.5+0 in jdk11u-dev, Forest open for
> development.

I like explicitly stating concrete days for cutoff and tagging to avoid situations like we currently have in jdk11u.

I however think we should do the jdk11u-dev to jdk11u branching on May 29, 2019. Then we have 6 weeks for RDP which should be enough.

Maybe we shouldn't stick to this RDP2 term in the context of jdk11u, anyway. We should have 3 phases:

1. When release is still in jdk11u-dev
2. RDP (Ramp down phase) - after the branch jdk11u-dev -> jdk11u happened (e.g. 6 weeks before GA)
3. CPU Freeze - e.g. 2 weeks before GA

Furthermore, I think we should only tag a new build if we have had changes compared to the last tag. It's of no use to have a tag following another in a repo if nothing happened.

So, we also shouldn't announce build numbers beforehand.

Best regards
Christoph