git: openjdk/jdk17u-dev: 8286030: Avoid JVM crash when containers share the same /tmp dir

[Goetz Lindenmaier]

Changeset: d52e18c9
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2023-02-10 08:37:36 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/d52e18c92d307f5f6e9e649d410a54bef3a910da

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

Reviewed-by: stuefe
Backport-of: 84f23149e22561173feb0e34bca31a7345b43c89

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