RFR [8u]: Pick up 8u222-b05 to sh/jdk8

[Roman Kennke]

Looks good, thanks!

Roman

> Need to pick up 8u222-b05 for stabilization.
> 
> Changesets:
>   http://cr.openjdk.java.net/~shade/shenandoah/merges/jdk8-8u222-b05/changesets.txt
> 
> Hotspot merge changeset:
>   http://cr.openjdk.java.net/~shade/shenandoah/merges/jdk8-8u222-b05/hotspot.changeset
> 
> Testing: hotspot_gc_shenandoah {fastdebug|release}
>