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

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

      if (types.length > 0 && mayNeedHiddenThis()) {
        Class<?>[] rawParamTypes = constructor.getParameterTypes();
        if (types.length == rawParamTypes.length
            && rawParamTypes[0] == getDeclaringClass().getEnclosingClass()) {
          // first parameter is the hidden 'this'
          return Arrays.copyOfRange(types, 1, types.length);
        }
      }
      return types;
    }

    @Override

  public void testConstructor(Constructor<?> ctor) {
    Class<?> declaringClass = ctor.getDeclaringClass();
    checkArgument(
        Modifier.isStatic(declaringClass.getModifiers())
            || declaringClass.getEnclosingClass() == null,
        "Cannot test constructor of non-static inner class: %s",
        declaringClass.getName());
    Class<?>[] types = ctor.getParameterTypes();