Noted, but for that you'd simply run your app on Java 17. If Spark works, and your app's dependencies work on Java 17 because you compile it for 17 (and jakarta.* classes for example) then there's no issue.
On Thu, Jun 8, 2023 at 3:13 AM Martin Andersson <martin.anders...@kambi.com> wrote: > There are some reasons to drop Java 11 as well. Java 17 included a large > change, breaking backwards compatibility with their transition from Java > EE to Jakarta EE > <https://blogs.oracle.com/javamagazine/post/transition-from-java-ee-to-jakarta-ee>. > This means that any users using Spark 4.0 together with Spring 6.x or any > recent version of servlet containers such as Tomcat or Jetty will > experience issues. (For security reasons it's beneficial to float your > dependencies to the latest version of these libraries/frameworks) > > I'm not explicitly saying Java 11 should be dropped in Spark 4, just > thought I'd bring this issue to your attention. > > Best Regards, Martin > ------------------------------ > *From:* Jungtaek Lim <kabhwan.opensou...@gmail.com> > *Sent:* Wednesday, June 7, 2023 23:19 > *To:* Sean Owen <sro...@gmail.com> > *Cc:* Dongjoon Hyun <dongj...@apache.org>; Holden Karau < > hol...@pigscanfly.ca>; dev <dev@spark.apache.org> > *Subject:* Re: JDK version support policy? > > > EXTERNAL SENDER. Do not click links or open attachments unless you > recognize the sender and know the content is safe. DO NOT provide your > username or password. > > +1 to drop Java 8 but +1 to set the lowest support version to Java 11. > > Considering the phase for only security updates, 11 LTS would not be EOLed > in very long time. Unless that’s coupled with other deps which require > bumping JDK version (hope someone can bring up lists), it doesn’t seem to > buy much. And given the strong backward compatibility JDK provides, that’s > less likely. > > Purely from the project’s source code view, does anyone know how much > benefits we can leverage for picking up 17 rather than 11? I lost the > track, but some of their proposals are more likely catching up with other > languages, which don’t make us be happy since Scala provides them for years. > > 2023년 6월 8일 (목) 오전 2:35, Sean Owen <sro...@gmail.com>님이 작성: > > I also generally perceive that, after Java 9, there is much less breaking > change. So working on Java 11 probably means it works on 20, or can be > easily made to without pain. Like I think the tweaks for Java 17 were quite > small. > > Targeting Java >11 excludes Java 11 users and probably wouldn't buy much. > Keeping the support probably doesn't interfere with working on much newer > JVMs either. > > On Wed, Jun 7, 2023, 12:29 PM Holden Karau <hol...@pigscanfly.ca> wrote: > > So JDK 11 is still supported in open JDK until 2026, I'm not sure if we're > going to see enough folks moving to JRE17 by the Spark 4 release unless we > have a strong benefit from dropping 11 support I'd be inclined to keep it. > > On Tue, Jun 6, 2023 at 9:08 PM Dongjoon Hyun <dongj...@apache.org> wrote: > > I'm also +1 on dropping both Java 8 and 11 in Apache Spark 4.0, too. > > Dongjoon. > > On 2023/06/07 02:42:19 yangjie01 wrote: > > +1 on dropping Java 8 in Spark 4.0, and I even hope Spark 4.0 can only > support Java 17 and the upcoming Java 21. > > > > 发件人: Denny Lee <denny.g....@gmail.com> > > 日期: 2023年6月7日 星期三 07:10 > > 收件人: Sean Owen <sro...@gmail.com> > > 抄送: David Li <lidav...@apache.org>, "dev@spark.apache.org" < > dev@spark.apache.org> > > 主题: Re: JDK version support policy? > > > > +1 on dropping Java 8 in Spark 4.0, saying this as a fan of the > fast-paced (positive) updates to Arrow, eh?! > > > > On Tue, Jun 6, 2023 at 4:02 PM Sean Owen <sro...@gmail.com<mailto: > sro...@gmail.com>> wrote: > > I haven't followed this discussion closely, but I think we could/should > drop Java 8 in Spark 4.0, which is up next after 3.5? > > > > On Tue, Jun 6, 2023 at 2:44 PM David Li <lidav...@apache.org<mailto: > lidav...@apache.org>> wrote: > > Hello Spark developers, > > > > I'm from the Apache Arrow project. We've discussed Java version support > [1], and crucially, whether to continue supporting Java 8 or not. As Spark > is a big user of Arrow in Java, I was curious what Spark's policy here was. > > > > If Spark intends to stay on Java 8, for instance, we may also want to > stay on Java 8 or otherwise provide some supported version of Arrow for > Java 8. > > > > We've seen dependencies dropping or planning to drop support. gRPC may > drop Java 8 at any time [2], possibly this September [3], which may affect > Spark (due to Spark Connect). And today we saw that Arrow had issues > running tests with Mockito on Java 20, but we couldn't update Mockito since > it had dropped Java 8 support. (We pinned the JDK version in that CI > pipeline for now.) > > > > So at least, I am curious if Arrow could start the long process of > migrating Java versions without impacting Spark, or if we should continue > to cooperate. Arrow Java doesn't see quite so much activity these days, so > it's not quite critical, but it's possible that these dependency issues > will start to affect us more soon. And looking forward, Java is working on > APIs that should also allow us to ditch the --add-opens flag requirement > too. > > > > [1]: https://lists.apache.org/thread/phpgpydtt3yrgnncdyv4qdq1gf02s0yj< > https://mailshield.baidu.com/check?q=Nz%2bGj2hdKguk92URjA7sg0PfbSN%2fXUIMgrHTmW45gOOKEr3Shre45B7TRzhEpb%2baVsnyuRL%2fl%2f0cu7IVGHunSGDVnxM%3d > > > > [2]: > https://github.com/grpc/proposal/blob/master/P5-jdk-version-support.md< > https://mailshield.baidu.com/check?q=s89S3eo8GCJkV7Mpx7aG1SXId7uCRYGjQMA6DeLuX9duS86LhIODZMJfeFdGMWdFzJ8S7minyHoC7mCrzHagbJXCXYTBH%2fpZBpfTbw%3d%3d > > > > [3]: https://github.com/grpc/grpc-java/issues/9386< > https://mailshield.baidu.com/check?q=R0HtWZIkY5eIxpz8jtqHLzd0ugNbcaXIKW2LbUUxpIn0t9Y9yAhuHPuZ4buryfNwRnnJTA%3d%3d > > > > > > --------------------------------------------------------------------- > To unsubscribe e-mail: dev-unsubscr...@spark.apache.org > > > > -- > Twitter: https://twitter.com/holdenkarau > Books (Learning Spark, High Performance Spark, etc.): > https://amzn.to/2MaRAG9 <https://amzn.to/2MaRAG9> > YouTube Live Streams: https://www.youtube.com/user/holdenkarau > >
