- ConcurrentHashMap<String, ImmutablePair<Class, String>> compatibleType =
- new ConcurrentHashMap<String, ImmutablePair<Class, String>>();
+ ConcurrentHashMap<String, ImmutablePair<Class<? extends Object>, String>> compatibleType =
+ new ConcurrentHashMap<String, ImmutablePair<Class<? extends Object>, String>>();