RFR: 8336873: BasicSplitPaneDivider:oneTouchExpandableChanged() should mention that implementation depends on SplitPane.supportsOneTouchButtons property [v4]

[Prasanta Sadhukhan]

> BasicSplitPaneDivider:oneTouchExpandableChanged() spec doesn't mention that it will create left/right button only if L&F supports SplitPane.supportsOneTouchButtons which is now added in javadoc..

Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:

  Mention Swing property

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Changes:
  - all: https://git.openjdk.org/jdk/pull/20289/files
  - new: https://git.openjdk.org/jdk/pull/20289/files/906799ed..331ddcdd

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=20289&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=20289&range=02-03

  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/20289.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20289/head:pull/20289

PR: https://git.openjdk.org/jdk/pull/20289