RFR: 8354341: Open some JTable bugs 7 [v2]

[Alisen Chung]

> Updating and opening some JTable bugs

Alisen Chung has updated the pull request incrementally with one additional commit since the last revision:

  update test instructions, add manual tag, move frame disposal into edt, volatile keyword

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Changes:
  - all: https://git.openjdk.org/jdk/pull/24739/files
  - new: https://git.openjdk.org/jdk/pull/24739/files/38145abc..63e60ccd

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24739&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24739&range=00-01

  Stats: 16 lines in 2 files changed: 3 ins; 1 del; 12 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