RFR: Setup process references and class unloading once before the cycle

[Aleksey Shipilev]

On 03/02/2018 01:23 PM, Roman Kennke wrote:
> Do I read this correctly that it moves the setup from VMThread to
> SHConcThread? Is this a good idea? Is it safe?

Yes and yes. The flags are thread-safe. And we are asking collector policy on the same path where we
ask it about other things, e.g. whether to start the cycle, so it is more consistent too.

-Aleksey