git: openjdk/jdk: 8286030: Avoid JVM crash when containers share the same /tmp dir

[Ioi Lam]

Changeset: 84f23149
Author:    Ioi Lam <iklam at openjdk.org>
Date:      2022-07-18 04:10:08 +0000
URL:       https://git.openjdk.org/jdk/commit/84f23149e22561173feb0e34bca31a7345b43c89

8286030: Avoid JVM crash when containers share the same /tmp dir

Reviewed-by: stuefe, sgehwolf

! src/hotspot/os/posix/perfMemory_posix.cpp
+ test/hotspot/jtreg/containers/docker/ShareTmpDir.java
+ test/hotspot/jtreg/containers/docker/WaitForFlagFile.java