[jdk21u-dev] RFR: 8211400: nsk.share.gc.Memory::getArrayLength returns wrong value

[Paul Hohensee]

Backport for parity with Oracle 21.0.8. Clean, low risk: fixes an nsk test, nsk passes with modified test.

-------------

Commit messages:
 - Backport 860d49db22cf352eaf1b3b20fff43d090f0eebc8

Changes: https://git.openjdk.org/jdk21u-dev/pull/1595/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1595&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8211400
  Stats: 7 lines in 1 file changed: 0 ins; 3 del; 4 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1595.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1595/head:pull/1595

PR: https://git.openjdk.org/jdk21u-dev/pull/1595