ANN: Shenandoah 11.0.8+ testing

[Aleksey Shipilev]

Hi,

As 11.0.8+ release tree is now open and collects fixes that should culminate in release in mid July,
Shenandoah 11u tree is also in similar position. It tracks upstream 11.0.8 closely, lagging a day or
two after each 11u tag. (For example, I have just pushed shenandoah-jdk-11.0.8+2.)

We have backported the bulk of the footprint, throughput, latency improvements done over the last
several weeks, and there are more to come until we hit the release candidate. It also has a bunch of
backported bugfixes.

Please consider testing our nightlies in your canary deployments:
  https://wiki.openjdk.java.net/display/Shenandoah#Main-NightlyBuilds

The quicker we find bugs there, the more probable they would get fixed before the next release.

-- 
Thanks,
-Aleksey