RFR: 8254691: Enable GitHub actions for jfx repo [v2]

[Johan Vos]

On Thu, 29 Oct 2020 18:30:47 GMT, Ambarish Rapte <arapte at openjdk.org> wrote:

>> Kevin Rushforth has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:
>> 
>>  - Merge branch 'master' into 8254691-github-actions
>>  - Ignore additional branches; minor cleanup
>>  - WIP: 8254691: Enable GitHub actions for jfx repo
>>    
>>    Initial working version on Linux, Mac, Windows
>
> Looks good to me. Verified a dummy PR with two commits.
> Actions executed correctly on both commits. Also verified that test failure is reported correctly and failed test can be found in log under Actions section.

This works fine. I have a minor comment (about using 15.0.1, but since we don't use that in build.properties either, I think it's not an issue), and apart from that, this looks very good.

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PR: https://git.openjdk.java.net/jfx/pull/338