Source code for KeyNavigatorBehavior.java?

Can anyone please help me find the source for KeyNavigatorBehavior.java? I can only see the old Sun version and I suspect it's a fair bit different inside.

https://github.com/philjord/java3d-utils/blob/master/src/main/java/org/jogamp/java3d/utils/behaviors/keyboard/KeyNavigatorBehavior.java

Thanks :-)

You're welcome.