Hey together,
I just noticed that the default Java implementation on Fedora 30 is still Java 8. Is this intended? I.e. both `dnf provides java` and `dnf provides java-headless` list only java-1.8.0-openjdk (or its subpackage).
How about this plan: 1. For Fedora 31, make also java-11-openjdk `Provides:` the relevant version-independent package aliases `java` and `java-headless` and so on. If this proposal is too late for Fedora 31, then make it for Fedora 32. 2. One release later, drop the version-independent aliases from java-1.8.0-openjdk so that java is being updated to java-11-openjdk for all users.
Kind regards, Chris
Hi,
On Sun, 2019-08-11 at 11:29 +0000, Christian Stadelmann wrote:
Hey together,
I just noticed that the default Java implementation on Fedora 30 is still Java 8. Is this intended? I.e. both `dnf provides java` and `dnf provides java-headless` list only java-1.8.0-openjdk (or its subpackage).
Yes, that's intentional.
How about this plan:
- For Fedora 31, make also java-11-openjdk `Provides:` the relevant version-independent package aliases `java` and `java-headless` and so on. If this proposal is too late for Fedora 31, then make it for Fedora 32.
- One release later, drop the version-independent aliases from java-1.8.0-openjdk so that java is being updated to java-11-openjdk for all users.
Note that for such a change we'd have to make sure that *all* Java packages build/run with java-11-openjdk as this essentially means any java package currently requiring java or java-devel will switch JDK to a modularized JDK underneath. Due to that potential breakage we haven't done the switch. JDK 11 has been GA'ed in September 2018, which was less than a year ago, fwiw.
If you'd like to help perform a mass-rebuild (into a separate tag?) and assess what's breaking, feel free to.
Thanks, Severin
On Mon, Aug 12, 2019 at 10:38 AM Severin Gehwolf sgehwolf@redhat.com wrote:
Hi,
On Sun, 2019-08-11 at 11:29 +0000, Christian Stadelmann wrote:
Hey together,
I just noticed that the default Java implementation on Fedora 30 is still Java 8. Is this intended? I.e. both `dnf provides java` and `dnf provides java-headless` list only java-1.8.0-openjdk (or its subpackage).
Yes, that's intentional.
I confirm that this is intended situation.
How about this plan:
- For Fedora 31, make also java-11-openjdk `Provides:` the relevant version-independent package aliases `java` and `java-headless` and so on. If this proposal is too late for Fedora 31, then make it for Fedora 32.
- One release later, drop the version-independent aliases from java-1.8.0-openjdk so that java is being updated to java-11-openjdk for all users.
Note that for such a change we'd have to make sure that *all* Java packages build/run with java-11-openjdk as this essentially means any java package currently requiring java or java-devel will switch JDK to a modularized JDK underneath. Due to that potential breakage we haven't done the switch. JDK 11 has been GA'ed in September 2018, which was less than a year ago, fwiw.
I don't think that this change would require any packages to be ported to Java 11. Definitely not all of the packages that currently don't work with Java 11. Thanks to "Decouple system java setting from java command setting" change [1] applications in the distribution use specific OpenJDK version on which they were tested, not system Java. Even if Fedora defaults for /usr/bin/java etc. are changed to Java 11 then applications (that are conformant to packaging guidelines) will continue to be ran on OpenJDK 8 unless they are configured to be ran with a specific OpenJDK version.
It would be nice to have at least a draft schedule for retirement of OpenJDK 8 so that maintainers can test their packages with more recent Java versions and port their packages if necessary. Fixing *all* packages should not be needed - in cases where maintainers are absent or don't have time to do that, their packages should be retired and not block the whole distribution from moving forward.
[1] https://fedoraproject.org/wiki/Changes/Decouple_system_java_setting_from_jav...
-- Mikolaj Izdebski
java-devel@lists.fedoraproject.org
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Christian Stadelmann -
Mikolaj Izdebski -
Severin Gehwolf