BrickPi3, RPi3+, Java - Serial Port issue

Hi, I’m trying out my BrickPi3 with the Java samples. I’m getting an error - Opening Serial Port /dev/ttyAMA0:500000

The doesn’t fail, but the serial.isOpen returns false.

Can the BrickPi3 communicate over Serial?

The Python samples all work with the ev3 motors, so the BrickPi3 & Rpi3 are both working, any help would be appreciated.