[jdk11u-dev] RFR: 8272197: Update 11u GHA workflow with Shenandoah configurations

[Aleksey Shipilev]

On Tue, 10 Aug 2021 07:37:58 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> I have noticed that 11u GHA workflow builds/tests without Shenandoah. This is because Shenandoah is not enabled by default in 11u, in contrast to mainline. Which means the workflow that we have picked from mainline does not enable Shenandoah.
> 
> Instead of changing the build defaults for 11u, I suggest we add Shenandoah configs to testing.
> 
> Example run:
> https://github.com/shipilev/jdk11u-dev/runs/3288861982

I've got the push approval. But I want to see the @TheRealMDoerr, @GoeLin, @RealCLanger opinions before I push.

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PR: https://git.openjdk.java.net/jdk11u-dev/pull/216