User torgil = new User("Torgil");
User ludvig = new User("Ludvig");
Collections.addAll(this.users, admin, torgil, ludvig);
Group administrators = new Group(new GroupId("14ec289d-1c2d-486e-98fb-16d5edbc5fbb"),
"Administrators", null);
administrators.addMember(admin);
Group users = new Group("Users");
users.addMember(torgil);
users.addMember(ludvig);
Collections.addAll(this.groups, administrators, users);
}