RFR: 8299518: HotSpotVirtualMachine shared code across different platforms [v3]

[Chris Plummer]

On Thu, 5 Jan 2023 03:32:21 GMT, Yi Yang <yyang at openjdk.org> wrote:

>> harmless refactor to share code across different platforms of VirtualMachineImpl:
>> 1. Shared code to process command response after requesting a command execution
>> 2. Read functionality in SocketInputStream can be reused
>
> Yi Yang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   add doc; readImpl/closeImpl to read/close

I would also like to request that the variable renames be omitted from this PR. They create too much noise and would best left to a PR that focuses on just the renames and possibly other style changes.

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PR: https://git.openjdk.org/jdk/pull/11823