RFR: 8370511: test/jdk/javax/swing/JSlider/bug4382876.java does not release previously pressed keys [v2]

[Alexander Zvegintsev]

> The test does not release previously pressed keys, which may cause failures in subsequent tests.
> 
> Testing looks good on all platforms.

Alexander Zvegintsev has updated the pull request incrementally with one additional commit since the last revision:

  volatile

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/27959/files
  - new: https://git.openjdk.org/jdk/pull/27959/files/e766a642..637249bc

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27959&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27959&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/27959.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27959/head:pull/27959

PR: https://git.openjdk.org/jdk/pull/27959