RFR: 8228434: jdk/net/Sockets/Test.java fails after JDK-8227642

[Mandy Chung]

Hi Severin,

On 7/19/19 9:55 AM, Severin Gehwolf wrote:
>> There might be other tests with policy files where this is not the case.
> My issue is with finding those tests :-/ If we know the set of *all*
> tests affected by the breakage we could do approach 2. Approach 1 (or
> 3) seems safer.
>
>> Severin - how about a combination of the two approaches, meaning add
>> Docker.DOCKER_COMMAND as per the first version but use
>> privilegedGetProperty to read the value. That way only container tests
>> using a SM and their own policy files will need to grant the permission
>> to read this property.
> Sure, fine with me. Here you go:
> http://cr.openjdk.java.net/~sgehwolf/webrevs/JDK-8228434/02/webrev/
>
>

It seems better to define Docker as a new top-level class as Platform 
doesn't seem the right place to define DOCKER_COMMAND.

Otherwise looks good.

Mandy