Redo for JComboBox infinite scrolling issue. The issue is that when a scrollbar is clicked and held, if the user switches focus (ex: ALT+TAB) while scrolling, when focused is returned to the scrolling application, the JComboBox will still be scrolling even though nothing it being clicked.
Previously, a KeyboardFocusListener was added to determine the focus. However, there was a memory leak on Windows and Ubuntu. This current implementation uses the current FocusManager and is overall a cleaner, simpler approach. ------------- Commit messages: - Initial commit - Merge branch 'master' of github.com:DamonGuy/jdk - Merge branch 'master' of github.com:DamonGuy/jdk - Initial commit for backout Changes: https://git.openjdk.org/jdk/pull/23451/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23451&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8344981 Stats: 84 lines in 2 files changed: 83 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/23451.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/23451/head:pull/23451 PR: https://git.openjdk.org/jdk/pull/23451
