1. Classes
2. CanonicalizedMap
3. DelegatingIterable
4. DelegatingList
5. DelegatingMap
6. DelegatingQueue
7. DelegatingSet
8. MapKeySet
9. MapValueSet
10. NonGrowableListMixin
11. NonGrowableListView
12. UnmodifiableListView
13. UnmodifiableMapMixin
14. UnmodifiableMapView
15. UnmodifiableSetMixin
16. UnmodifiableSetView