RFR: Bulk backport to sh/jdk8u

[Aleksey Shipilev]

On 09/27/2017 07:11 PM, Aleksey Shipilev wrote:
> http://cr.openjdk.java.net/~shade/shenandoah/backports/jdk8u-20170927/webrev.01/
> 
> Includes:
> 
> rev 10119 : [backport] Verify regions status
> rev 10120 : [backport] Asynchronous region recycling
> rev 10121 : [backport] Heap region sampling should publish region states
> rev 10122 : [backport] Store checks should run most of the time
> rev 10123 : [backport] FreeSet refactor: bitmaps, cursors, biasing
> rev 10124 : [backport] Trim the TLAB sizes to avoid wasteful retirement under TLAB races
> rev 10125 : [backport] Adaptive collection set selection in adaptive policy
> rev 10126 : [backport] Make heap counters update completely asynchronous
> rev 10127 : [backport] Adaptive heuristics accounts trashed cset twice
> 
> Testing: hotspot_gc_shenandoah
> 
> (There are some interesting test timeouts that are present even with current 8u, trying to resolve
> them separately)

I withdraw this RFR, because test timeouts seem much more frequent with these patches applied, and
thus block the push. Let me figure out what is wrong.

Thanks,
-Aleksey