RFR: 8304912: Use OperatingSystem enum in java.desktop module [v3]

[Roger Riggs]

On Fri, 7 Apr 2023 01:45:01 GMT, Phil Race <prr at openjdk.org> wrote:

>> Roger Riggs has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Update copyright
>>   Replaced a few more uses of os.name.
>
> So if we want to get rid of all the getProperty (etc) calls and unify it then  the way I'd prefer to do this is via a single channel inside the desktop module.
> So change everything to use that pre-existing sun.awt.OSInfo class.
> Modifying that as necessary. Then that class can be the SINGLE place that has a direct dependency on this java.base internal and we can more easily drop it if required.
> Meanwhile I also think there's a better than 50:50 chance someone will add new uses of System.getProperty .. whatever the solution is. So whack-a-mole-away.

@prrace Please review

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PR Comment: https://git.openjdk.org/jdk/pull/13213#issuecomment-1507561152