SRU: remove openjdk-14 from the release pocket, and re-introduce it in the updates pocket

[Matthias Klose]

openjdk-14 has a much shorter life time than the Ubuntu 20.04 LTS release. Therefore we should be able to remove it once it's not supported anymore, and maybe replace it with openjdk-15 and-16. This issue should be standing SRU for these openjdk versions, before we remove openjdk-14 from the release pocket.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Matthias Klose (doko)]

asked for a standing SRU exception in
https://wiki.ubuntu.com/StableReleaseUpdates#openjdk-N

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Łukasz Zemczak (sil2100)]

The verification of the Stable Release Update for openjdk-13 has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

[Launchpad Janitor (janitor)]

This bug was fixed in the package openjdk-13 - 13.0.3+3-1ubuntu2

---------------
openjdk-13 (13.0.3+3-1ubuntu2) focal; urgency=medium

  * SRU: LP: #1871161, upload to the proposed/updates pocket, package was
    removed in the release pocket.

 -- Matthias Klose <email address hidden> Sat, 18 Apr 2020 14:23:20 +0200

[Launchpad Janitor (janitor)]

This bug was fixed in the package openjdk-14 - 14.0.1+7-1ubuntu1

---------------
openjdk-14 (14.0.1+7-1ubuntu1) focal; urgency=medium

  * SRU: LP: #1871161, upload to the proposed/updates pocket, package was
    removed in the release pocket.
  * Build again with -march=zEC12 on Ubuntu/s390x.

 -- Matthias Klose <email address hidden> Sat, 18 Apr 2020 14:25:53 +0200

[John Neffenger (jgneff)]

Thank you for adding the two most recent non-LTS releases of OpenJDK in addition to the base OpenJDK LTS release. Having three OpenJDK releases in Ubuntu is a great help in solving problems and seeing performance trends in the JVM.

For example, these Ubuntu packages allowed me to benchmark the performance of certain buffer-copying operations on ARM processors across JDK versions 11, 13, and 14, with surprising results. See the bar charts on the following page for examples:

JavaFX FramebufferY8 Benchmarks
https://jgneff.github.io/framebufferY8/

There's always AdoptOpenJDK, but it's great to have the packages built and ready to go directly within Ubuntu. It also helps in verifying that there are no critical differences between the builds by AdoptOpenJDK and Ubuntu. Thanks again!