For start I "normalized" the Java strings to a form like "Java 8" or "Java 17". This resulted in pretty much similar results as Romain PDF (Azul report).
But then realized, we should consider this: Not every LTS existed at the same time span (and we discuss the future here, not the past). Here is some history I collected: - Java 8: Covers strings like "Java 1.8.0-25" (2014) to "Java 1.8.0-401" (2024), that is 10 year span. - Java 11: Covers strings like "Java 11-ea" (2018) to "Java 11.0.22" (2024), that is a 6 year span. - Java 17: Covers strings like "Java 17-ea" (2021) to "Java 17.0.10" (2024), that is a 3 year span. - Java 21: Covers strings like "Java 21-ea" (2023) to "Java 21.0.2" (2024), that is 1 year span. So, "normalized" and "weighted" (by lifespan) results are these: https://gist.github.com/cstamas/d2e5560f24ebe6a667834aa1f44d6fc1 Weighted pie immediately shows which Java versions are "dead" (are present, but are "sliding out") and which ones are "alive and kicking" (and adoption is quite high). --- Refs: - https://www.java.com/releases/ - https://openjdk.org/projects/jdk/11/ - https://openjdk.org/projects/jdk/17/ - https://openjdk.org/projects/jdk/21/ On Thu, Feb 22, 2024 at 8:50 AM Tamás Cservenák <ta...@cservenak.net> wrote: > Howdy, > > Maven UA is created like this: > > https://github.com/apache/maven/blob/master/maven-core/src/main/java/org/apache/maven/internal/aether/DefaultRepositorySystemSessionFactory.java#L555 > > I was hoping also for a list of "Apache Maven ..." lines with occurrence > count. > > Now am unsure, for example if any other tool would use "Java X" string in > its own UA, is that collected here? > > But let's cook with what we have :) > > T > > > On Thu, Feb 22, 2024, 08:03 Mateusz Gajewski < > mateusz.gajew...@starburstdata.com> wrote: > >> Do you have maven version and java version at the same time report? I >> wonder if old maven is used with old JDK :) >> >> On Wed, Feb 21, 2024 at 23:23 Brian Fox <bri...@infinity.nu> wrote: >> >> > Hi everyone. I haven't caught up on this thread but Tamas pinged me to >> get >> > some usage data from Central. Attached are the Maven versions and JDK >> > Version counts as reported by User Agent by distinct IP for the last 30 >> > days: >> > >> > >> > >> > >> > >> > On Wed, Feb 21, 2024 at 4:15 PM Hunter C Payne >> > <hunterpayne2...@yahoo.com.invalid> wrote: >> > >> >> I also want to stress that we care about what maven supports far more >> >> than what it requires to build. If it needs JDK 17 to build but the >> jars >> >> are compliant with Java 8, that's fine with me. >> >> >> >> Hunter >> >> >> >> On Wednesday, February 21, 2024 at 12:47:33 PM PST, Romain >> >> Manni-Bucau <rmannibu...@gmail.com> wrote: >> >> >> >> Hmm, not sure im ready for a 200M vanilla build tool even if it would >> >> have >> >> been ok legally... >> >> >> >> Le mer. 21 févr. 2024 à 21:41, Hunter C Payne >> >> <hunterpayne2...@yahoo.com.invalid> a écrit : >> >> >> >> > I might be wrong but I understood that shipping the JRE/JVM >> required a >> >> > license and this is why most people don't ship with a JVM bundled. >> But >> >> > perhaps that has changed since the Oracle v Google/Alphabet trial. >> >> > Hunter >> >> > >> >> > On Wednesday, February 21, 2024 at 12:00:54 PM PST, Benjamin >> Marwell >> >> < >> >> > bmarw...@apache.org> wrote: >> >> > >> >> > FWIW, bazel changed its runtime requirement to Java 21. >> >> > But they are shipping their own Java Runtime, so their users won't >> >> notice. >> >> > [1] >> >> > >> >> > I think they are the first build tool to do that. >> >> > >> >> > I say this as a FYI fact only, not implying anything. >> >> > Make of it what you want. >> >> > >> >> > - Ben >> >> > >> >> > Am Di., 20. Feb. 2024 um 21:50 Uhr schrieb Tamás Cservenák >> >> > <ta...@cservenak.net>: >> >> > > >> >> > > Howdy, >> >> > > >> >> > > I intentionally used "Maven" here, and not "Maven 4" as I am sure >> the >> >> > > majority of Maven users do not run Maven on the same Java version >> they >> >> > > target with their build. We do not do that either. >> >> > > >> >> > > Some snippets from Herve (who is the ONLY one doing reproducible >> >> checks, >> >> > > kudos for that) votes: >> >> > > >> >> > > Sun, Feb 18, 2024, 9:38 AM >> >> > > [VOTE] Release Apache Maven Shade Plugin version 3.5.2 >> >> > > Reproducible Build ok: reference build done with JDK 11 on *nix >> >> > > >> >> > > Wed, Jan 31, 2024, 5:06 AM >> >> > > [VOTE] Release Apache Maven JLink Plugin version 3.2.0 >> >> > > Reproducible Builds ok: reference build done on *nix with JDK 21 >> and >> >> > umask >> >> > > 022 >> >> > > >> >> > > Mon, Jan 8, 2024, 8:29 AM >> >> > > [VOTE] Release Maven Plugin Tools version 3.11.0 >> >> > > Reproducible Builds ok: reference build done with JDK 8 on Windows >> >> with >> >> > > umask >> >> > > >> >> > > Mon, Dec 18, 2023, 8:59 AM >> >> > > [VOTE] Release Apache Maven Compiler Plugin version 3.12.0 >> >> > > Reproducible Builds ok: reference build done on *nix with JDK 21 >> and >> >> > umask >> >> > > 022 >> >> > > >> >> > > Mon, Dec 18, 2023, 8:59 AM >> >> > > [VOTE] Release Apache Maven Compiler Plugin version 3.12.0 >> >> > > Reproducible Builds ok: reference build done on *nix with JDK 21 >> and >> >> > umask >> >> > > 022 >> >> > > >> >> > > Wed, Nov 29, 2023, 8:16 AM >> >> > > [VOTE] Apache Maven Build Cache Extension 1.1.0 >> >> > > Reproducible Build ok: reference build done on *nix with JDK 11 >> >> > > >> >> > > Sun, Nov 19, 2023, 5:17 PM >> >> > > [VOTE] Release Maven Resolver 1.9.17 >> >> > > Reproducible Build ok: reference build done with JDK 21 on *nix >> with >> >> > umask >> >> > > 022 >> >> > > >> >> > > Sat, Oct 21, 2023, 4:34 PM >> >> > > VOTE] Apache Maven 4.0.0-alpha-8 release >> >> > > Reproducible Build ok: reference build done with JDK 21 on *nix >> with >> >> > umask >> >> > > 022 >> >> > > >> >> > > Mon, Oct 2, 2023, 9:11 AM >> >> > > [VOTE] Release Apache Maven 3.9.5 >> >> > > Reproducible not fully ok: reference build done with JDK 17 on *nix >> >> and >> >> > > umask 022 >> >> > > >> >> > > ==== >> >> > > >> >> > > This CLEARLY shows the tendency: >> >> > > - Michael does releases on Java 8 (on windows!), he is a known >> >> "aligner" >> >> > > and windows person :) >> >> > > - Olivier used the "minimum" required Java version (for build >> cache). >> >> > > - Unsure why Herve used Java 11 for the Shade plugin... I mean, he >> >> could >> >> > > use 21 but also 8, but he shot for 11 that was EOL at the moment of >> >> > release. >> >> > > - The rest is 21. >> >> > > >> >> > > ==== >> >> > > >> >> > > So, the question for those refusing anything other than Java 8 to >> >> _run_ >> >> > > Maven (or to revert: for those refusing to run Maven on "latest >> LTS", >> >> > that >> >> > > is currently 21): >> >> > > WHY? >> >> > > >> >> > > >> >> > > Thanks >> >> > > T >> >> > >> >> > --------------------------------------------------------------------- >> >> > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >> >> > For additional commands, e-mail: dev-h...@maven.apache.org >> >> > >> >> > >> >> >> > >> > >> > --------------------------------------------------------------------- >> > To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >> > For additional commands, e-mail: dev-h...@maven.apache.org >> >
