[jfx11u] RFR: 8203463: [Accessibility, Narrator] NPE in TableView

[Johan Vos]

Reviewed-by: kcr

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Commit messages:
 - 8203463: [Accessibility, Narrator] NPE in TableView

Changes: https://git.openjdk.java.net/jfx11u/pull/81/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jfx11u&pr=81&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8203463
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jfx11u/pull/81.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx11u pull/81/head:pull/81

PR: https://git.openjdk.java.net/jfx11u/pull/81