[jdk8u-dev] RFR: 8318039: GHA: Bump macOS and Xcode versions

[Antonio Vieiro]

On Tue, 9 Jul 2024 15:01:22 GMT, Zdenek Zambersky <zzambers at openjdk.org> wrote:

> This backport is written from scratch, as GHA workflows in jdk8u differ significantly from newer jdk versions.
> 
> Notes:
> - additionally installed `gawk` to prevent build error on newer macos (see my [comment](https://github.com/openjdk/jdk17u-dev/pull/2206#issuecomment-2217722646))
> - interestingly, unlike for newer jdks (11, 17), additional backports do not seem necessary to pass the build, probably build system of jdk8 is more relaxed, when it comes to warnings as errors
> - fixes problem of stuck macos jobs in GHA (caused by dropping of macos-11 by GitHub)
> 
> Testing:
> - macos builds pass
> - there are some test failures on updated macos, probably problem in test environment, seem to be hostname related -> to be fixed (either here, or in separate PR)

For 11 I opened JDK-8336451. Also the  PRs below https://github.com/openjdk/jdk11u-dev/pull/2861 should bring the macos-build back online in 11. 

It's `getaddrinfo` that is having trouble resolving  (here's a reproducer https://github.com/vieiro/gha-macos-resolve-hostname)

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PR Comment: https://git.openjdk.org/jdk8u-dev/pull/544#issuecomment-2240993470