[jdk21u] RFR: 8311631: When multiple users run tools/jpackage/share/LicenseTest.java, Permission denied for writing /var/tmp/*.files

[Matthias Baesken]

8311631: When multiple users run tools/jpackage/share/LicenseTest.java, Permission denied for writing /var/tmp/*.files

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Commit messages:
 - Backport fac9f88c52a07d972bad48d9ec116cb7e0fc5052

Changes: https://git.openjdk.org/jdk21u/pull/144/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u&pr=144&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8311631
  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk21u/pull/144.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u.git pull/144/head:pull/144

PR: https://git.openjdk.org/jdk21u/pull/144