RFR: 8303151: DCmd framework cleanups [v2]

[David Holmes]

On Sat, 4 Mar 2023 09:12:54 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

>> David Holmes has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Fix comment
>
> +1

Thanks for the review @tstuefe 

Re-running test builds after latest adjustment.

-------------

PR: https://git.openjdk.org/jdk/pull/12847