Clean backport to jfx27u. --------- - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai).
------------- Commit messages: - Backport 1068a25e475c7a4113f79ad8c9af29e649ebf732 Changes: https://git.openjdk.org/jfx27u/pull/20/files Webrev: https://webrevs.openjdk.org/?repo=jfx27u&pr=20&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8392009 Stats: 3035 lines in 30 files changed: 326 ins; 2620 del; 89 mod Patch: https://git.openjdk.org/jfx27u/pull/20.diff Fetch: git fetch https://git.openjdk.org/jfx27u.git pull/20/head:pull/20 PR: https://git.openjdk.org/jfx27u/pull/20
