RFR: Bulk backports jdk12 -> sh/jdk11

[Aleksey Shipilev]

On 3/11/19 9:29 PM, Roman Kennke wrote:
> This backports all relevant Shenandoah changes (I hope) from jdk-updates/jdk12u to shenandoah/jdk11.
> 
> They all applied mostly clean and trivial. Builds and tests look good.
> 
> List of changes:
> http://cr.openjdk.java.net/~rkennke/upstream-jdk11-merge-2019-03-11/changes.txt
> 
> Full webrev:
> http://cr.openjdk.java.net/~rkennke/upstream-jdk11-merge-2019-03-11/webrev.00/

Looks good to me. Thanks!

Hold on for a minute, though.

Andrew Hughes, notice the synopsis format for the changes:
 [backport] $BUGID $SYNOPSIS

This is almost the same as we did over the years for Shenandoah-specific backports, but now it also
mentions $BUGID, because Shenandoah is finally upstream. We would like to separate backports that
are coming to our downstream version of Shenandoah versus the upstream changes (especially those
coming via 11u updates), therefore Shenandoah-specific backports done by Shenandoah devs start with
"[backport]". This would also avoid these backports to be accidentally matched by jcheck and/or
hgupdater.

Does it make sense to you?

-Aleksey