This is a follow-up to the combobox converter PR. It seems like the updateDisplayNode method in the Skin does not properly handle null cases for when null is an item in the combobox. It probably incorrectly assumes that any null values is mapped to null by the stringconverter. However, if you create a custom converter, a null value can have a non-null string value.
--------- - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - Merge if else case for display node update Changes: https://git.openjdk.org/jfx/pull/2169/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=2169&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8384806 Stats: 81 lines in 2 files changed: 66 ins; 15 del; 0 mod Patch: https://git.openjdk.org/jfx/pull/2169.diff Fetch: git fetch https://git.openjdk.org/jfx.git pull/2169/head:pull/2169 PR: https://git.openjdk.org/jfx/pull/2169
