Integrated: 8342081: Shenandoah: Remove extra ShenandoahMarkUpdateRefsSuperClosure

[Aleksey Shipilev]

On Mon, 14 Oct 2024 19:20:08 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> `ShenandoahMarkUpdateRefsSuperClosure` has only one real subclass, which is used in STW mark. We can collapse the class hierarchy a bit here. 
> 
> Additional testing:
>  - [x] Linux x86_64 server fastdebug, `hotspot_gc_shenandoah`

This pull request has now been integrated.

Changeset: 724de682
Author:    Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/724de682091623cd9877ee4e5f13123ef1d92ddf
Stats:     22 lines in 2 files changed: 2 ins; 11 del; 9 mod

8342081: Shenandoah: Remove extra ShenandoahMarkUpdateRefsSuperClosure

Reviewed-by: ysr

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PR: https://git.openjdk.org/jdk/pull/21505