return rawType.getEnclosingClass();
      }
    },
    LOCAL_CLASS_HAS_NO_OWNER {
      @Override
      @CheckForNull
      Class<?> getOwnerType(Class<?> rawType) {
        if (rawType.isLocalClass()) {
          return null;
        } else {
          return rawType.getEnclosingClass();
        }
      }
    };

    @CheckForNull
    abstract Class<?> getOwnerType(Class<?> rawType);