Clojurians Log v2

Just looked at the Clojure test matrix and I see it testing against JDK 8 through 11. Is there a reason not to test against more recent JDKs?

our only official supported JDKs are the LTS releases

there are also some non-functional reasons which have to do with silly reasons like disk space and compute capacity on the build box

eventually we will take care of those but the pain involved is enough that I'm putting it off for now

I do manually test Clojure itself on every Java release

Thanks. We’re using OpenJDK 11 in production and have been discussing whether to upgrade to 14 which we’ve used fairly extensively in dev or whether to wait for 17. There’s no pressing reason either way really at this point. I’ve been using 15 for dev for ages now and I’m thinking of updating to 16 soon.

15 and 16 are really amazing IMHO -- ZGC garbage collector is worth it almost alone

over shenandoah?

dunno, haven't evaluated shenanoah much

Is ZGC the default now, with 16?

no. It became "production" quality in 15, and has 1ms pause times in 16

Ah, cool. Right now, on 11, we specify -XX:+UseG1GC -XX:MaxGCPauseMillis=100 so having 1ms instead would be real nice 🙂

Maybe I’ll take 16 for a spin, on dev at least.

anyone is welcome to do anything they like, that I don't have to run :)

@souenzzo I already test several of my OSS projects against multiple JDKs: https://github.com/seancorfield/next-jdbc/blob/develop/.github/workflows/test.yml#L10

(guess I should change that to '16', '17-ea' now)

and add graalvm as well )

Do you have an example of doing that in a GH Action?

give me a sec

name: Clojure CI

on: [push]

jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        java: [ '8', '11', '14', '15', '16-ea', '17-ea' ]
    steps:
      - uses: actions/checkout@v2
      - name: Setup Java
        uses: actions/setup-java@v1
        with:
          java-version: ${{ matrix.java }}
      - name: Setup Clojure
        uses: DeLaGuardo/setup-clojure@master
        with:
          tools-deps: '1.10.1.739'
      - name: Run Tests
        run: clojure -M:test:runner

  build-graalvm:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        graalvm: [ '19.3.0', '20.0.0', '20.1.0', '20.2.0', '20.3.0', '20.3.1', '20.3.1.2', '21.0.0', '21.0.0.2' ]
        base: [ 'java8', 'java11' ]
    steps:
      - uses: actions/checkout@v2
      - name: Setup GraalVM
        uses: DeLaGuardo/setup-graalvm@4.0
        with:
          graalvm: ${{ matrix.graalvm }}
          java: ${{ matrix.base }}
      - name: Setup Clojure
        uses: DeLaGuardo/setup-clojure@master
        with:
          tools-deps: '1.10.1.739'
      - name: Run Tests
        run: clojure -M:test:runner

Thanks @delaguardo!

You're welcome)

I will check this action in an hour. Not sure that I recall every version correctly