修改enum的值

enum的值在编译过后设计static和final。我想利用反射来修改请问可以吗？？

[b]但是单独的static 或者final的，都是可以修改的。[/b]

[b]
不可以，测试如下：[/b]

[code="java"]
package ceshi;
import java.lang.reflect.Field;

public class EnumTest {

public final static MyEnum test = MyEnum.RED;

public static void main(String[] args) throws SecurityException, NoSuchFieldException, IllegalArgumentException, IllegalAccessException {

    Class clazz = EnumTest.class;
    Field  field = clazz.getDeclaredField("test");
    field.setAccessible(true);
    field.set(null, MyEnum.GREEN);
    System.out.println(field.get(null));
}

}

enum MyEnum{
RED,GREEN
}[/code]
[b]
输出：[/b]
[color=red]Exception in thread "main" java.lang.IllegalAccessException: Can not set static final ceshi.MyEnum field ceshi.EnumTest.test to ceshi.MyEnum[/color]