RFR: 8215097: Do not create NonJavaThreads before BarrierSet

[Kim Barrett]

> On Dec 10, 2018, at 5:20 AM, Thomas Schatzl <thomas.schatzl at oracle.com> wrote:
> 
> Hi,
> 
> On Sun, 2018-12-09 at 03:30 -0500, Kim Barrett wrote:
>> Please review this change to move the construction of some work gang
>> threads by G1 and CMS to after they've created the barrier set.  This
>> allows the removal of some bootstrapping code needed to support that
>> construction order.  There isn't any requirement for the old order,
>> it seems to just be a historical artifact.
>> 
>> CR:
>> https://bugs.openjdk.java.net/browse/JDK-8215097
>> 
>> Webrev:
>> http://cr.openjdk.java.net/~kbarrett/8215097/open.00/
>> 
>> Testing:
>> mach5 tier1-5
> 
>  looks good.
> 
> Thomas

Thanks.