RFR: Shenandoah filter for gc/TestFullGCCount.java test

[Roman Kennke]

> On 11/14/18 2:50 PM, Aleksey Shipilev wrote:
>> On 11/14/2018 08:39 PM, Zhengyu Gu wrote:
>>> Shenandoah, by default, sets ExplicitGCInvokesConcurrent = true,
>>> which means it runs concurrent GC
>>> for System.gc().
>>>
>>> We need to filter out the test, unless ExplicitGCInvokesConcurrent is
>>> explicitly set to false.
>>>
>>> Webrev:
>>> http://cr.openjdk.java.net/~zgu/shenandoah/filter_conc_system_gc/webrev.00/
>>>
>>
>> I think this is one of those rare cases when multiple @requires are
>> better, e.g:
>>
>>   * @requires !(vm.gc.ConcMarkSweep &
>> vm.opt.ExplicitGCInvokesConcurrent == true)
>>   * @requires !(vm.gc.Shenandoah    &
>> vm.opt.ExplicitGCInvokesConcurrent == false)
>>
>> Does this work?
> 
> Yep, it works.
> 
> Will push this one once Roman ack.

Ok.
Roman