通过反射获取List <T>中的包含类型？

import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.List;

public class ReflectionHelper {
    public static Class<?> getListType(List<?> list) {
        Type superclass = list.getClass().getGenericSuperclass();
        if (superclass instanceof ParameterizedType) {
            ParameterizedType parameterized = (ParameterizedType) superclass;
            Type[] typeArgs = parameterized.getActualTypeArguments();
            if (typeArgs.length > 0) {
                return (Class<?>) typeArgs[0];
            }
        }
        return Object.class;
    }
}

List<String> stringList = new ArrayList<>();
Class<?> listType = ReflectionHelper.getListType(stringList);
System.out.println("List type: " + listType.getName());

List type: java.lang.String