如果我在编译时不知道类，那么如何获得Enum的值呢?

I'm trying to do the following:

我想做的是:

Class<?> cls = unknownClass;
if(cls.isEnum()){
    @SuppressWarnings("unchecked")
    Class<? extends Enum<?>> enumClass = (Class<? extends Enum<?>>) cls;
    Object val = Enum.valueOf(enumClass, "NAME1");
}
Clas