RFR: 8354341: Open some JTable bugs 7

[Alisen Chung]

Updating and opening some JTable bugs

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Commit messages:
 - update jtreg path
 - open tests

Changes: https://git.openjdk.org/jdk/pull/24739/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24739&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8354341
  Stats: 449 lines in 4 files changed: 449 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/24739.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24739/head:pull/24739

PR: https://git.openjdk.org/jdk/pull/24739