as org.eclipse.equinox.common already requires java 11 and this is a (transitive) dependency of jdt, i assume jdt already effectively needs java 11 with the current release
Am 16.06.21 um 15:31 schrieb Andrey Loskutov: > Hi all, > > sorry for cross-posting, but I would like to take your attention to JDT > specific topic that may affect some downstream JDT consumers. > > *** Request to move JDT to Java 11 *** > > 1) I request that JDT stops supporting compilation of JDT code on Java 8 and > execution of JDT code on Java 8, for the 4.21 release, and switches to > compile JDT project code against Java 11 libraries. > 2) If this request would be agreed / approved, I would like to add an item to > the 4.21 release plan [1] that Eclipse Compiler for Java (ecj) can only be > used on Java 11+ runtime environment. > > *** Reason for this request *** > > JDT team is a very small team, overloaded since a very long time with support > of various Java releases in compiler. > This team can't afford to support running ecj on Java 8 AND on Java 11 AND on > Java 16 AND on Java 17+ etc. > The code complexity and the issues we see in JDT are overwhelming and > constantly growing. > With every Java release more and more features need to be added to the code > base, and the maintenance burden is becoming bigger, not smaller! > > To simplify maintainers life and save time for proper Eclipse Java compiler > support we should declare end of "run on Java 8" support in JDT code. > To be honest: since we are not testing ecj on Java 8 since long time, no one > can guarantee that any recent ecj version can run on Java 8 anyway. > > *** Important note *** > > This request doesn't mean JDT would not support compilation of programs with > Java 8 target! > We still support compilation targets from Java 1.3 to the latest Java release. > > This request is only about JDT own project code that will be compiled with > Java 11 target. Moving JDT to Java 11 would also open a door for possible > contributions that could use API's only available since Java 9+, but that's > not the main driver here. > > Please note, that Eclipse platform (IDE/RCP) as a whole does not support > compilation/execution on Java 8 since 4.17 release (2020-09) and we do not > run any tests on Java 8 that would guarantee Java 8 compliance. > > There is a discussion on bug 572389 [2], which is not a new one. Most of the > Platform projects are already moved to compile against Java 11, only some > parts of JDT related to the standalone compiler are still (theoretically) > compatible to Java 8, the IDE part of JDT has dependencies to libraries / > bundles that only support Java 11+. > > *** What downstream consumers could do after move *** > > If JDT code base is moved to Java 11, downstream consumers can do following: > > 1) Use previously released JDT / ecj versions. > 2) Run the build/application using JDT on Java 11+. > 3) Clone JDT code and build / maintain own fork, compatible to Java 8. > 4) Contribute to JDT. > > *** Action item for PMC / JDT team *** > > Please, can we make a decision & have an agreement to drop "run on Java 8" > support for 4.21, and move JDT code to Java 11? > *If* not 4.21, can we please make a decision & have an agreement to drop "run > on Java 8" support in JDT for some *concrete* platform version? > > PS > > Before someone would write an answer asking JDT project to continue "run on > Java 8" support - please provide a *concrete* proposal, how *you* or your > organisation could contribute to JDT, because nobody else is there that would > have time to do that. > > [1] > https://www.eclipse.org/projects/project-plan.php?planurl=http://www.eclipse.org/eclipse/development/plans/eclipse_project_plan_4_21.xml > [2] https://bugs.eclipse.org/bugs/show_bug.cgi?id=572389 > > Kind regards, > Andrey Loskutov > > Спасение утопающих - дело рук самих утопающих > > https://www.eclipse.org/user/aloskutov > > _______________________________________________ > cross-project-issues-dev mailing list > cross-project-issues-dev@eclipse.org > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/cross-project-issues-dev -- Christian Dietrich (Diplom-Informatiker (BA)) Softwareentwickler / -Architekt Committer and Co-Lead for Eclipse Xtext Tel.: +49 (0) 711 / 34 21 91-0 Fax.: +49 (0) 711 / 34 21 91-29 Mobil: +49 (0) 151 / 173969 17 Mail: christian.dietr...@itemis.de XING: https://www.xing.com/profile/Christian_Dietrich8 Web: http://www.itemis.de Skype: christiandietrich1982 itemis AG Niederlassung Süd Industriestraße 6 70565 Stuttgart -- Vorstand/Board: Jens Wagener (Vors./chairman), Dr. Stephan Eberle, Abdelghani El-Kacimi, Wolfgang Neuhaus, Franz-Josef Schuermann Aufsichtsrat/Supervisory Board: Michael Neuhaus (Vors./chairman), Harald Goertz, Stephan Grollmann Sitz der Gesellschaft/Registered Office: Am Brambusch 15-24, 44536 Lünen (Germany) Registergericht/Registry Court: Amtsgericht Dortmund | HRB 20621 _______________________________________________ cross-project-issues-dev mailing list cross-project-issues-dev@eclipse.org To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/cross-project-issues-dev
