B4J Question For expert on raspberry (linux) system

[micro]

Hi to all
I have installed on raspberry raspbian system the jdk-8u65 package for arm and the
stable package Openjfx builds 8u40 (http://108.61.191.178) for raspberry.
My B4j (latest version 4.01) program work fine, the only problem is that not recognize the key pressed
on the usb keyboard (usb wirelss mouse and usb hd work well) or with sendkey command.
Some porting library for javafx that does not work well?

thanks