Backport to jdk24 of https://bugs.openjdk.org/browse/JDK-8347274
------------- Commit messages: - 8347274: Gatherers.mapConcurrent exhibits undesired behavior under variable delays, interruption, and finishing Changes: https://git.openjdk.org/jdk/pull/23068/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23068&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8347542 Stats: 148 lines in 2 files changed: 93 ins; 16 del; 39 mod Patch: https://git.openjdk.org/jdk/pull/23068.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/23068/head:pull/23068 PR: https://git.openjdk.org/jdk/pull/23068
