RFR: 8287398: Allow concurrent execution of hotspot docker tests [v2]

[Mikhailo Seledtsov]

On Fri, 27 May 2022 16:27:40 GMT, Ioi Lam <iklam at openjdk.org> wrote:

>> Remove the `exclusiveAccess.dirs=.` configuration (and thus the entire TEST.properties file) so that the  test/hotspot/jtreg/containers/docker/*.java tests can be executed concurrently. This reduces total execution from about 8 minuets to about 2.5 minuets on my machine.
>> 
>> In early days of JDK support for docker, we disabled concurrent execution as a precaution to avoid collisions in docker operations, such as building an image. Such collisions should no longer happen (each image is uniquely named).
>> 
>> In comparison, in tests/jdk/jdk/internal/platform/docker there are no such limitations, and the 6 docker tests there can be executed in parallel without issue.
>
> Ioi Lam has updated the pull request incrementally with one additional commit since the last revision:
> 
>   updated Common.imageName() to generate unique names

Looks good to me, thanks.

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Marked as reviewed by mseledtsov (Committer).

PR: https://git.openjdk.java.net/jdk/pull/8914