Recommended Setup For PiCrate

RaspberryPI OS Release (32 bit)

The RaspberryPI OS installed OpenJDK probably just works best.

sudo apt install openjdk-11-jdk # installs latest jdk11

ManjaroARM (64 bit)

The latest version of PiCrate works well with stock java install jdk17.

sudo pacman -S jre-openjdk