assertThrows(
        IllegalArgumentException.class,
        () -> Types.newArtificialTypeVariable(List.class, "E", int.class));
  }

  public void testNewTypeVariable_serializable() throws Exception {
    assertThrows(
        RuntimeException.class,
        () -> SerializableTester.reserialize(Types.newArtificialTypeVariable(List.class, "E")));
  }

         */
        if (Types.NativeTypeVariableEquals.NATIVE_TYPE_VARIABLE_ONLY
            && Arrays.equals(bounds, resolvedBounds)) {
          return var;
        }
        return Types.newArtificialTypeVariable(
            var.getGenericDeclaration(), var.getName(), resolvedBounds);
      }
      // in case the type is yet another type variable.
      return new TypeResolver(forDependants).resolveType(type);
    }