RFR: 8362289: [macOS] Remove finalize method in JRSUIControls.java [v4]

[Phil Race]

> Eliminate a finalize() method in the Swing macOS implementation.
> 
> I tested that the dispose method is being called by running this small test in combination with some 'println' statements in the source code (now removed)
> 
> import javax.swing.JTabbedPane;
> import javax.swing.plaf.TabbedPaneUI;
> 
> public class CreateTabbedPaneUIStressTest {
> 
>    public static void main(String[] args) {
>        for (int i=0; i<1000000000; i++) {
>            JTabbedPane jtp = new JTabbedPane();
>            TabbedPaneUI tpui = jtp.getUI();
>        }
>    }
> }
> 
> 
> I also monitored the process size using 'top'.
> And when I commented out the native call that did the free and re-tested I saw process size grow.
> 
> Turning the above into a useful regression test doesn't seem possible to me.
> Limiting Java heap is pointless (and I did use -Xmx20m) since it is a native resource that is to be freed and failure to dispose won't show up as a problem without taking down the machine.

Phil Race has updated the pull request incrementally with one additional commit since the last revision:

  JRSUIControl.java

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/26331/files
  - new: https://git.openjdk.org/jdk/pull/26331/files/21ad3a11..3b4556cf

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=26331&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=26331&range=02-03

  Stats: 4 lines in 1 file changed: 0 ins; 1 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/26331.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26331/head:pull/26331

PR: https://git.openjdk.org/jdk/pull/26331