1    package javassist.sample.reflect; 
2     
3    import javassist.reflect.ClassMetaobject; 
4    import javassist.reflect.Loader; 
5     
6    /* 
7      The "verbose metaobject" example (JDK 1.2 or later only). 
8     
9      Since this program registers class Person as a reflective class 
10     (in a more realistic demonstration, what classes are reflective 
11     would be specified by some configuration file), the class loader 
12     modifies Person.class when loading into the JVM so that the class 
13     Person is changed into a reflective class and a Person object is 
14     controlled by a VerboseMetaobj. 
15    
16     To run, 
17    
18     % java javassist.reflect.Loader sample.reflect.Main Joe 
19    
20     Compare this result with that of the regular execution without reflection: 
21    
22     % java sample.reflect.Person Joe 
23   */ 
24    
25   public class Main { 
26       public static void main(String[] args) throws Throwable { 
27           Loader cl = (Loader) Main.class.getClassLoader(); 
28           cl.makeReflective("sample.reflect.Person", 
29                   "sample.reflect.VerboseMetaobj", 
30                   "javassist.reflect.ClassMetaobject"); 
31    
32           cl.run("sample.reflect.Person", args); 
33       } 
34   } 
35