RFR: Merge jfx19

[Kevin Rushforth]

Merge `jfx19` into `master`

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Commit messages:
 - Merge jfx19
 - 8290348: TreeTableView jumping to top

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/jfx/pull/842/files
  Stats: 81 lines in 2 files changed: 46 ins; 11 del; 24 mod
  Patch: https://git.openjdk.org/jfx/pull/842.diff
  Fetch: git fetch https://git.openjdk.org/jfx pull/842/head:pull/842

PR: https://git.openjdk.org/jfx/pull/842