Policy Tool is not accessible by keyboard

As part of JDK accesibility requirements from Oracle, all the products shipped should be accessible.

PolicyTool.exe is part of JDK and it is not accessible. Most of the features are not accesibile by just using the keyboard. Following are some of the issues.

1. Enter key event is not listened on the ADD / Edit / Remove Policy Entry, as in the mouse click. So the Policy Entry dialog is not getting popped up

2. Key accelarators are present for File and KeyStore Menu Items

3. Clicking Enter on the Add / Edit / Remove Principal is not working

4. Clicking Enter on the Add / Edit / Remove Permission is not working.

Overall this tool is not in compliance with the recommended accessibility standards.
High Contrast Mode is also not working, please see the attached image (PolicyTool-HighContrast.png)