[jdk21u] RFR: 8315214: Do not run sun/tools/jhsdb tests concurrently

[Matthias Baesken]

8315214: Do not run sun/tools/jhsdb tests concurrently

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Commit messages:
 - Backport 1e7e2bcf3560e1ad39516fb604e4d8bf85bb54e0

Changes: https://git.openjdk.org/jdk21u/pull/142/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u&pr=142&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315214
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u/pull/142.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u.git pull/142/head:pull/142

PR: https://git.openjdk.org/jdk21u/pull/142