RFR: 8349007: jtreg test ResolvedMethodTableHash takes excessive time

Wed Apr 2 17:33:28 UTC 2025

This is mostly test change.  ResolvedMethodTableHash.java is run /manual but still takes a long time and doesn't really verify that the hash code is any good.  This add logging, triggers concurrent work like other ConcurrentHashtables, and checks that a small table is not rehashed.
Tested with tier1 (including test).

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Commit messages:
 - 8349007: jtreg test ResolvedMethodTableHash takes excessive time

Changes: https://git.openjdk.org/jdk/pull/24383/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24383&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8349007
  Stats: 97 lines in 2 files changed: 36 ins; 9 del; 52 mod
  Patch: https://git.openjdk.org/jdk/pull/24383.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24383/head:pull/24383

PR: https://git.openjdk.org/jdk/pull/24383