How do I convert this code into Java

void my_ntl_add(OUT uint8_t resb[16], IN const uint8_t ab[16], IN const uint8_t bb[16]) { GF2X a, b, res;

GF2XFromBytes(a, ab, 16); GF2XFromBytes(b, bb, 16);

add(res, a, b);

BytesFromGF2X(resb, res, 16); }