RFR[15] JDK-8244683: A TSA server used by tests

[Weijun Wang]

OK. Please go on. No other comment.

> On Jun 4, 2020, at 12:02 AM, sha.jiang at oracle.com wrote:
> 
>> Can we make them internal at the moment until someone really need to extend it?
> Yes, we can.
> But as a test lib, is it bad to think about a bit further?

But think about it carefully when there are new requirements. It's probably not a good idea to make every method overridable at the beginning and say do whatever you want.

Thanks,
Max