RFR: [9] Bulk backports to sh/jdk9

[Roman Kennke]

Am 16.01.2018 um 18:35 schrieb Aleksey Shipilev:
> On 01/16/2018 06:33 PM, Roman Kennke wrote:
>> On thing that struck me that must have slipped my previous jdk10 review (but doesn't stop this
>> backport):
>>
>> -  void start_concurrent_marking();
>>     void stop_concurrent_marking();
>>
>> Why is start_concurrent_marking() gone, but not stop_concurrent_marking() ?
> 
> Because start* and stop* were not really symmetric. start_concurrent_marking() was the alias for
> init-mark, while stop_concurrent_marking() is the method that cleans up mark mess, either in
> concurrent or Full GC cycle. The naming choice was misleading.

Ok