@Moon I'm still very confus how one would go about the JVM in order to actually do something meaningful OS work (i.e. IO) with the Java pointers. Like you'd either need to expose the peripheral register address into the VM or need to escape it :think_nyan:
C(++) is very nice for OS dev because of the simple syntax for low-level stuff as well as the little overhead it needs (if you're using a more minimal libc)