10 RFR: 8169517: WhiteBox should provide concurrent GC phase control

[Kim Barrett]

> On Mar 6, 2017, at 4:56 AM, Aleksey Shipilev <shade at redhat.com> wrote:
> 
> On 03/05/2017 02:01 AM, Kim Barrett wrote:
>> For the tests I've written so far or know I'll be writing, the effort
>> involved in creating and maintaining that sort of sanity check seems not even
>> remotely worth the trouble.
> 
> Having developed GC tests _and_ having used stringy APIs, I wholeheartedly
> disagree. An API that accepts strings, but has no "list" method to enumerate
> expected strings is bad API.

Dmitry agrees with you, so I’ll add it.

>> I would rather not add code that I think has a good chance of never being 
>> used. It can be added later if someone really wants it.
> 
> All right, fine, push it like this.
> 
> -Aleksey