JPA Criteria API .in-Clause with empty list

Question

I use JPA Criteria API to create a query:

    List<Area> areas = areaService.getAreasForUser(user);
    Join<Equipment, Area> areaJoin = equipment.join(Equipment_.area);
    wheres.add(areaJoin.get(Area_.id).in(areas));

Which means I want to get all Areas where a User has access.

In a User has Areas it will evaluate to ... where area.id IN (1, 2, 3) which works fine.

When a User has no Areas it evaluates to: ... where area.id IN () which will result as error.

Can you give me a tip how to solve this problem?

Thanks