The bug occurs when `showRoot` is set to false on a root with no children, the expanded item count drops is 0 causing `isFocused(0)` to return false even though `focusedIndex` is still 0. When items are added afterwards the `treeItemListener` sees `focusedIndex=0` and incorrectly shifts it to 1 placing the focus on second item of the TreeView. The fix replaces `isFocused(0)` with `getFocusedIndex() >= 0`, which reads the raw stored index.
------------- Commit messages: - Merge branch 'openjdk:master' into 8256142.TreeViewFocus - Fixed focus on second item in TreeView Changes: https://git.openjdk.org/jfx/pull/2095/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=2095&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8256142 Stats: 5 lines in 1 file changed: 2 ins; 0 del; 3 mod Patch: https://git.openjdk.org/jfx/pull/2095.diff Fetch: git fetch https://git.openjdk.org/jfx.git pull/2095/head:pull/2095 PR: https://git.openjdk.org/jfx/pull/2095
