Annotation中定义的enum类型的如何调用

Question

Annotation中定义的enum类型的如何调用，我写了一个代码，
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
@Inherited
public @interface MyAnnotation {
int i();
String str();
em e();
String[] value();
}
enum em {
Hello,
world
}

然后我在测试代码中调用枚举类型的e，代码是这样的：
public class Main {

public static void main(String[] args) {
    Class<TestMyAnnotation> c = TestMyAnnotation.class;
    Method test = null ;
    try {
        test = c.getDeclaredMethod("testAnnoation",String.class);
    } catch (Exception e) {
        e.printStackTrace();
    } 
    MyAnnotation a = test.getAnnotation(MyAnnotation.class);
    System.out.println(a.i());
    System.out.println(a.str());
         System.out.println(a.e());               //此处出错，抛出IllegalAccessError
              em e = em.Hello;                         //em是我定义的一个enum
              System.out.println(e);                   //这样是可以的，why？
}

}

Answer 1

[color=blue][b]改为这样：[/b][/color]
[code="java"]public enum em {
Hello,
world
} [/code]