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

[Yi Yang]

On Fri, 6 Jan 2023 05:50:05 GMT, David Holmes <dholmes at openjdk.org> wrote:

> As long as all the platform-specific `VirtualMachineImpl` classes define a `read` and `close` method then we can simply have the shared socket stream class call those methods. Windows will need an extra level of indirection because its `read` method will have to call `readPipe`.

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