RFR [jdk11]: 8240792: backport of 8226653: [accessibility] Can edit text cell correctly, but Accessibility Tool reads nothing about editor

[Baesken, Matthias]

Hello, please review the jdk11 downport of

8226653: [accessibility] Can edit text cell correctly, but Accessibility Tool reads nothing about editor

8226653  is a closed bug, so I had to open a new one ( https://bugs.openjdk.java.net/browse/JDK-8240792 ) to track the downport.
The patch applies cleanly.


original bug :

https://bugs.openjdk.java.net/browse/JDK-8226653

new bug :

https://bugs.openjdk.java.net/browse/JDK-8240792

webrev jdk/jdk :

https://hg.openjdk.java.net/jdk/jdk/rev/04d80e7ad3f4


Thanks, Matthias