[jfx24u] RFR: 8351368: RichTextArea: exception pasting from Word

[Andy Goryachev]

Clean backport of https://github.com/openjdk/jfx/pull/1731

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Commit messages:
 - Backport 1c3cfcb8bb4e8874406d3a5b507f38859f4c1d9b

Changes: https://git.openjdk.org/jfx24u/pull/11/files
  Webrev: https://webrevs.openjdk.org/?repo=jfx24u&pr=11&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8351368
  Stats: 4 lines in 1 file changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jfx24u/pull/11.diff
  Fetch: git fetch https://git.openjdk.org/jfx24u.git pull/11/head:pull/11

PR: https://git.openjdk.org/jfx24u/pull/11