Hello, Please review fix for JDK9: bug: https://bugs.openjdk.java.net/browse/JDK-8154431 webrev: http://cr.openjdk.java.net/~ssadetsky/8154431/webrev.00/
The thing is the Swing validation doesn't allow to validate state of the target component of input focus transfer operation. To support that the fix adds two new methods verifyTarget(JComponent target) and shouldYieldFocus(JComponent source, JComponent target) to the javax.swing.InputVerifier class, and its old shouldYieldFocus(JComponent input) is marked as deprecated.
The solution guaranties full compatibility with previous JDK versions. --Semyon
