RFR: JDK-8323543: NPE when table items are set to null [v4]

[Kevin Rushforth]

On Thu, 11 Jan 2024 18:56:03 GMT, Carl Döbbelin <duke at openjdk.org> wrote:

>> This PR fixes a nullpointer in TableSkinUtils that occured when the Tables items were null.
>
> Carl Döbbelin has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - JDK-8323543: refactors tests and adds accessible attribute test for treetable
>  - JDK-8323543: remove unneeded comment

Although... I just spotted something. The updated tests use JUnit5 assertions into what is otherwise a JUnit4 test. We generally avoid doing this.

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

PR Comment: https://git.openjdk.org/jfx/pull/1329#issuecomment-1887774310