RFR 8245194: Unix domain socket channel implementation

[Chris Hegarty]

> On 8 Jul 2020, at 17:16, Roger Riggs <Roger.Riggs at oracle.com> wrote:
> ..
> The serialization proxy class name is already qualified by the enclosing class name.
> In java.time we use the class name 'Ser’.

Yeah, I thought of that too, but then, somewhat lazily, opted for the shorter-than-current but longer-than-Ser name. `Ser` is better.

-Chris.