RFR: 8292716: Configure should check that jtreg is of the required version [v3]

[Magnus Ihse Bursie]

On Mon, 22 Aug 2022 14:11:32 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

>> While reviewing the PR for [JDK-8289798](https://bugs.openjdk.org/browse/JDK-8289798) (switching to jtreg 7) I realized that it would be better if configure checked if the provided jtreg is of the minimum required version.
>> 
>> This PR is dependent on https://github.com/openjdk/jdk/pull/9964, so what you see here is a diff relative to that PR, and it can't be merged until that PR has been merged.
>
> Magnus Ihse Bursie 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' of https://git.openjdk.org/jdk into jtreg-version-check
>  - 8292716: Configure should check that jtreg is of the required version
>  - 8292717: Clean up checking of testing requirements in configure

I coordinated with @sormuras so I push this first, and he update the minimum version in configure as part of https://github.com/openjdk/jdk/pull/9393.

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PR: https://git.openjdk.org/jdk/pull/9965