public void add(Vector3f vec, Vector3f result) {
public Vector3f add(Vector3f vec) {
    public void add(Vector3f vec, Vector3f result) {        if(null == vec) {            LoggingSystem.getLogger().log(Level.WARNING, "Provided vector is " +            "null, null returned.");            return;        }        result.x = x + vec.x;        result.y = y + vec.y;        result.z = z + vec.z;    }