[jdk17u-dev] RFR: 8327474: Review use of java.io.tmpdir in jdk tests

[SendaoYan]

Hi all,

This pull request contains a backport of commit [af6c5854](https://github.com/openjdk/jdk21u-dev/commit/af6c5854235573a29b6b418e9f759e2564bca63a) from the [openjdk/jdk21u-dev](https://git.openjdk.org/jdk21u-dev) repository.

The commit being backported was authored by Goetz Lindenmaier on 22 Apr 2024 and had no reviewers.

The backport not clean because jdk17u-dev doesn't have `test/jdk/jdk/jfr/threading/TestManyVirtualThreads.java`.  Existing tests should be reviewed to check the usage of java.io.tmpdir. Test fix only, the risk is low.


Thanks!

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Commit messages:
 - Backport af6c5854235573a29b6b418e9f759e2564bca63a

Changes: https://git.openjdk.org/jdk17u-dev/pull/2811/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2811&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8327474
  Stats: 190 lines in 10 files changed: 65 ins; 13 del; 112 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2811.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2811/head:pull/2811

PR: https://git.openjdk.org/jdk17u-dev/pull/2811