RFR: 8256393: Github Actions build on Linux should define OS and GCC versions

Tue Nov 17 09:27:03 UTC 2020

On Mon, 16 Nov 2020 13:51:29 GMT, Erik Joelsson <erikj at openjdk.org> wrote:

>> We should be more explicit about OS and compiler versions used in the GitHub Actions builds, to avoid problems caused by unexpected changes to the defaults. This patch changes the OS and GCC versions used from ubuntu-latest (currently 18.04, but will change to 20.04 sometime soon) / default (currently 9.3.0) to 20.04 / 10.2.0.
>
> Marked as reviewed by erikj (Reviewer).

> Why does jtreg need OpenJDK-8 for building?

Fair enough, the 1.8 requirement comes from using build-all.sh which checks this explicitly. But I'd rather leave changing how we build jtreg for a separate change..

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PR: https://git.openjdk.java.net/jdk/pull/1225