git: openjdk/jdk17u: master: 8269478: Shenandoah: gc/shenandoah/mxbeans tests should be more resilient

[Aleksey Shipilev]

Changeset: 9554fba4
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-08-23 07:39:08 +0000
URL:       https://git.openjdk.java.net/jdk17u/commit/9554fba495f51a0a8772b4a40a4eefa1a6782877

8269478: Shenandoah: gc/shenandoah/mxbeans tests should be more resilient

Backport-of: 23d2996fee54afcc386a505a65d3236aab874e9e

! test/hotspot/jtreg/gc/shenandoah/mxbeans/TestChurnNotifications.java
! test/hotspot/jtreg/gc/shenandoah/mxbeans/TestPauseNotifications.java