Fixes warnings generated by the latest Eclipse: method is overriding a synchronized method without being synchronized
------------- Commit messages: - 8289388: fixed method is overriding a synchronized method warning Changes: https://git.openjdk.org/jfx/pull/819/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=819&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8289388 Stats: 7 lines in 3 files changed: 1 ins; 0 del; 6 mod Patch: https://git.openjdk.org/jfx/pull/819.diff Fetch: git fetch https://git.openjdk.org/jfx pull/819/head:pull/819 PR: https://git.openjdk.org/jfx/pull/819
