RFR : 8211106: [windows] Update OS detection code to recognize Windows Server 2019

[Weijun Wang]

According to https://en.wikipedia.org/wiki/Windows_Server:

Microsoft releases Windows Server in a LTS channel every few years named Windows Server 2016, Windows Server 2019, ...

It also releases in a semi-annual channel named Windows Server, version 1803, 1809, ...

I'm not sure if we can find out from which channel a system is from simply by looking at the version number.

--Max

> On Oct 19, 2018, at 6:05 PM, Alan Bateman <Alan.Bateman at oracle.com> wrote:
> 
> On 19/10/2018 10:22, Baesken, Matthias wrote:
>> Thanks for the remarks ,   I updated  my changes , new webrev :
>> 
>> http://cr.openjdk.java.net/~mbaesken/webrevs/8211106.2/
>> 
> Do you know if there is anything on the Microsoft site to explain why the minor version wasn't bumped? It looks unusual to have both Windows Server 2016 and 2019 report the same major and minor versions.
> 
> -Alan