Using TCK Tested JDK builds of OpenJDK

[carldea]

GitHub Action setup-java@v2 requires a distribution templeted with adopt. The AdoptOpenJDK has been discontinued since July 2021 (https://adoptopenjdk.net). Switching the distribution to Azul Zulu (zulu). When using Zulu you get all the latest updated (TCK Tested) builds for all versions of OpenJDK. AdoptOpenJDK builds are not TCK tested.

Expected Behavior

When building and testing the project you are expected to get the latest JDK (security patches, bug fixes, etc.). Or a major fixed version from an archived release. This is good practice if there are major vendors and customers who are still using older versions of the JDK.

Current Behavior

• Not getting the latest JDK release
• Not building and testing on TCK tested JDK
• Only testing and building on the latest JDK

Possible Solution

Update github actions to use zulu as a distro will solve the following:

• Gets the latest builds of OpenJDK
• Azul Zulu builds are TCK tested (ready for production)
• Provide a matrix to test/build a fixed(major) version and the latest.

The following snippet will be added to the GitHub workflow:

jobs:
  build:
    runs-on: ubuntu-latest 
    strategy:
      matrix:
        java-version: [ 8.0.192, 8 ]
    steps:
      - uses: actions/checkout@v2
      - name: Set up JDK ${{ matrix.java-version }}
        uses: actions/setup-java@v2
        with:
          java-version: ${{ matrix.java-version }}
          distribution: zulu

Context

Full disclosure, I work for Azul and I would like to help repos/projects avoid test/build interuptions because of OpenJDK distribution build versions provided from GH setup-java@v2 are not consistent (except zulu). Originally GH action setup-java@v1 was using zulu and the newer version (GHAction) allows you to choose adopt, zulu, and temurin. Because adopt has been discontinued (AdoptOpenJDK binaries) you only have two choices currently.

Your Environment

N/A

[supahgreg]

I don't have a preference either way (and have used all options mentioned at various points), but AdoptOpenJDK's direct replacement would seem to be their new Eclipse Temurin distributions (temurin), made available via the Adoptium site, which is JCK/TCK certified (a benefit of moving under Eclipse).

edit: I just noticed the PR has a bit more context on why Zulu might be preferable over Temurin for this use case.

• https://github.com/actions/setup-java#supported-distributions
• https://adoptium.net/archive.html?variant=openjdk8&jvmVariant=hotspot

[bernd]

@carldea @supahgreg Thanks for bringing this up!

As mentioned in the PR, we want to switch to temurin for now because it's the successor of adopt.

[carldea]

Not a problem. I will need to remove Java 8.0.192, As Temurin doesn't support that version.

[carldea]

Updated the workflow so you should be ready to go!

[bernd]

@carldea Thank you! 🙏 I just merged the PR.

[carldea]

@carldea Thank you! 🙏 I just merged the PR.

You are welcome! Glad to have helped contribute. 👍🏼