RFR: 8191564: Refactor GC related servicability code into GC specific subclasses

[mandy chung]

On 11/30/17 6:22 AM, Roman Kennke wrote:
> Hi David,
>
> I added the tag as you proposed:
>
> Differential:
> http://cr.openjdk.java.net/~rkennke/8191564/webrev.08.diff/
> Full:
> http://cr.openjdk.java.net/~rkennke/8191564/webrev.08/
>

This looks really good.  This version looks much better than an early 
version I looked at (thanks for regenerating webrev with hg rename).

A minor comment that GCMemoryManager could take an enum to indicate the 
type of this  GC action (major vs minor).   This can be a future cleanup.

thanks
Mandy