[jdk20] RFR: 4512626: Non-editable JTextArea provides no visual indication of keyboard focus [v5]

[Alexander Zuev]

> Set the text caret to be visible but not blinking on the non-editable text area. Fix the regression test that becames unstable after the change.

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

  Renamed blinkRateSaved to isBlinkRateSaved

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Changes:
  - all: https://git.openjdk.org/jdk20/pull/21/files
  - new: https://git.openjdk.org/jdk20/pull/21/files/abf5d77d..e11d54b5

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk20&pr=21&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk20&pr=21&range=03-04

  Stats: 9 lines in 1 file changed: 0 ins; 0 del; 9 mod
  Patch: https://git.openjdk.org/jdk20/pull/21.diff
  Fetch: git fetch https://git.openjdk.org/jdk20 pull/21/head:pull/21

PR: https://git.openjdk.org/jdk20/pull/21