[jdk21u-dev] RFR: 8315680: java/lang/ref/ReachabilityFenceTest.java should run with -Xbatch

[Goetz Lindenmaier]

I backport this for parity with 17.0.11-oracle.

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Commit messages:
 - Backport a290256bbf85a52fbeab24dab5fbe195cf58750f

Changes: https://git.openjdk.org/jdk21u-dev/pull/2/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315680
  Stats: 6 lines in 1 file changed: 0 ins; 0 del; 6 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2/head:pull/2

PR: https://git.openjdk.org/jdk21u-dev/pull/2