Having multiple JDK versions installed with a toolchains.xml ?

[nielsbasjes]

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Some of my projects need multiple JDK versions installed for a complete build.
Best example: https://github.com/nielsbasjes/yauaa
The reason is that the library is built using in such a way that it must be compatible with Java 8, using plugins that only work on Java 11 and ensure compatibility via integration tests with Java 17.

In Github actions this is very simple to achieve (this installs all 3 and generates the correct toolchains.xml):

    - name: 'Setup: Install JDK 8, 11 & 17'
      uses: actions/setup-java@v3
      with:
        distribution: 'adopt'
        java-version: |
          8
          11
          17

How can I setup something like this codespaces?

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