[jfx17u] RFR: 8235491: Tree/TableView: implementation of isSelected(int) violates contract

[Johan Vos]

clean backport of
8235491: Tree/TableView: implementation of isSelected(int) violates contract

Reviewed-by: aghaisas, fastegal, kcr

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Commit messages:
 - 8235491: Tree/TableView: implementation of isSelected(int) violates contract

Changes: https://git.openjdk.org/jfx17u/pull/121/files
 Webrev: https://webrevs.openjdk.org/?repo=jfx17u&pr=121&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8235491
  Stats: 325 lines in 8 files changed: 285 ins; 9 del; 31 mod
  Patch: https://git.openjdk.org/jfx17u/pull/121.diff
  Fetch: git fetch https://git.openjdk.org/jfx17u pull/121/head:pull/121

PR: https://git.openjdk.org/jfx17u/pull/121