RFR: 8367376: Bad ButtonUI prevents other components from updating when system changes desktop properties [v4]

[Jeremy Wood]

> Previously:
> 
> If DesktopProperty#updateAllUIs threw an exception, we would never reset the update-pending property to false. This means any subsequent call to `updateUI()` would not attempt to call `updateAllUIs()`
> 
> With this change:
> Subsequent calls to DesktopProperty#updateUI() can still trigger at least one call to updateAllUIs().

Jeremy Wood has updated the pull request incrementally with three additional commits since the last revision:

 - 8367376: rename test file
   
   This is in response to:
   https://github.com/openjdk/jdk/pull/27205#discussion_r2356674752
 - 8367376: add new line to end of file
   
   This is in response to:
   https://github.com/openjdk/jdk/pull/27205#discussion_r2356666306
 - 8367376: changing field names
   
   This is in response to:
   https://github.com/openjdk/jdk/pull/27205#discussion_r2356664929

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/27205/files
  - new: https://git.openjdk.org/jdk/pull/27205/files/fef2241e..108e2d5a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27205&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27205&range=02-03

  Stats: 316 lines in 2 files changed: 159 ins; 157 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/27205.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27205/head:pull/27205

PR: https://git.openjdk.org/jdk/pull/27205