f2.addOneToMany(HibernateTestOneToMany.getDefaultInstance4(null));
f3.addOneToMany(HibernateTestOneToMany.getDefaultInstance1(null));
f3.addOneToMany(HibernateTestOneToMany.getDefaultInstance3(null));
f4.addOneToMany(HibernateTestOneToMany.getDefaultInstance1(null));
f4.addOneToMany(HibernateTestOneToMany.getDefaultInstance2(null));
f4.addOneToMany(HibernateTestOneToMany.getDefaultInstance3(null));
f4.addOneToMany(HibernateTestOneToMany.getDefaultInstance4(null));
layer.create(f1);