RFR: 8353483: Open source some JProgressBar tests [v2]

[Phil Race]

> Open source 4 Swing JProgressBar tests.

Phil Race has updated the pull request incrementally with one additional commit since the last revision:

  8353483

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/24517/files
  - new: https://git.openjdk.org/jdk/pull/24517/files/82e33e55..5e9e7348

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24517&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24517&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/24517.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24517/head:pull/24517

PR: https://git.openjdk.org/jdk/pull/24517