RFR: 8317771 [macos14] Expand/collapse a JTree using keyboard freezes the application in macOS 14 Sonoma

[Johannes Bechberger]

On Wed, 20 Dec 2023 09:28:47 GMT, Artem Semenov <asemenov at openjdk.org> wrote:

> NSAccessibility Outline is an accessibility representation of trees.
> This representation requires that the visible children be represented as a flat array.
> The child linearization algorithm available in ```CAccessibility.getChildrenAndRolesRecursive()``` is universal, i.e. suitable for any object with the role of a tree, but is not efficient, since it traverses the entire tree and selects suitable children.
> For JTree, this algorithm can be optimized by using TreePath, but the old algorithm will have to be retained to maintain versatility.

Fixed code is not present in JDK11, therefore no backport there.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/17165#issuecomment-1898553850