On Fri, 8 Apr 2022 13:43:39 GMT, Alan Bateman <al...@openjdk.org> wrote:

> This is the implementation of JEP 425: Virtual Threads (Preview).
> We will refresh this PR periodically to pick up changes and fixes from the 
> loom repo.
> Most of the new mechanisms in the HotSpot VM are disabled by default and 
> require running with `--enable-preview` to enable.
> The patch has support for x64 and aarch64 on the usual operating systems 
> (Linux, macOS, and Windows). There are stubs (calling _Unimplemented_) for 
> zero and some of the other ports. Additional ports can be contributed via PRs 
> against the fibers branch in the loom repo.
> There are changes in many areas. To reduce notifications/mails, the labels 
> have been trimmed down for now to hotspot, serviceability and core-libs. We 
> can add additional labels, if required, as the PR progresses.
> The changes include a refresh of java.util.concurrent and ForkJoinPool from 
> Doug Lea's CVS. These changes will probably be proposed and integrated in 
> advance of this PR.
> The changes include some non-exposed and low-level infrastructure to support 
> the (in draft) JEPs for Structured Concurrency and Extent Locals. This is to 
> make life a bit easier and avoid having to separate VM changes and juggle 
> branches at this time.

This pull request has now been integrated.

Changeset: 9583e365
Author:    Alan Bateman <al...@openjdk.org>
Stats:     99468 lines in 1133 files changed: 91198 ins; 3598 del; 4672 mod

8284161: Implementation of Virtual Threads (Preview)

Co-authored-by: Ron Pressler <rpress...@openjdk.org>
Co-authored-by: Alan Bateman <al...@openjdk.org>
Co-authored-by: Erik Österlund <eosterl...@openjdk.org>
Co-authored-by: Andrew Haley <a...@openjdk.org>
Co-authored-by: Rickard Bäckman <rback...@openjdk.org>
Co-authored-by: Markus Grönlund <mgron...@openjdk.org>
Co-authored-by: Leonid Mesnik <lmes...@openjdk.org>
Co-authored-by: Serguei Spitsyn <sspit...@openjdk.org>
Co-authored-by: Chris Plummer <cjplum...@openjdk.org>
Co-authored-by: Coleen Phillimore <cole...@openjdk.org>
Co-authored-by: Robbin Ehn <r...@openjdk.org>
Co-authored-by: Stefan Karlsson <stef...@openjdk.org>
Co-authored-by: Thomas Schatzl <tscha...@openjdk.org>
Co-authored-by: Sergey Kuksenko <skukse...@openjdk.org>
Reviewed-by: lancea, eosterlund, rehn, sspitsyn, stefank, tschatzl, dfuchs, 
lmesnik, dcubed, kevinw, amenkov, dlong, mchung, psandoz, bpb, coleenp, smarks, 
egahlin, mseledtsov, coffeys, darcy


PR: https://git.openjdk.java.net/jdk/pull/8166

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