ADDITIONAL SYSTEM INFORMATION :
Windows 10

A DESCRIPTION OF THE PROBLEM :
We have some additional content for the OpenJDK-Issue [JDK-8087557]
https://bugs.openjdk.java.net/browse/JDK-8087557?jql=text%20~%20%22alert%20reader%22

Our problem: When the alert dialog shows up, narrator reads the title but not the content/message or the type of message (error). The only way to get it read the content is using Capslock & Arrow Right/Left. That is not very accessibile.

We provide you two attached test cases. The first ist written in .Net. When using it with narrator the content/message is read. The second is written in JavaFX. With narrator the content/message of the alert isn't read.