*/
    static ImmutableMap<TypeVariableKey, Type> getTypeMappings(Type contextType) {
      checkNotNull(contextType);
      TypeMappingIntrospector introspector = new TypeMappingIntrospector();
      introspector.visit(contextType);
      return ImmutableMap.copyOf(introspector.mappings);
    }

    @Override
    void visitClass(Class<?> clazz) {