ANN: Shenandoah 8u262+ testing

[Aleksey Shipilev]

Hi,

As 8u262 release tree is open and collects fixes that should culminate in release in mid July,
Shenandoah 8u tree is also in similar position. It tracks upstream 8u262, and we pull from there
more or less regularly.

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

Note: this is not the release candidate, and it can be rough around the edges. Please deploy only
where the VM bug/crash would not be catastrophic.

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

-- 
Thanks,
-Aleksey