1import java.io.*;
2import javassist.util.HotSwapper;
3
4public class Test {
5    public static void main(String[] args) throws Exception {
6        HotSwapper hs = new HotSwapper(8000);
7        new HelloWorld().print();
8
9        File newfile = new File("logging/HelloWorld.class");
10        byte[] bytes = new byte[(int)newfile.length()];
11        new FileInputStream(newfile).read(bytes);
12        System.out.println("** reload a logging version");
13
14        hs.reload("HelloWorld", bytes);
15        new HelloWorld().print();
16
17        newfile = new File("HelloWorld.class");
18        bytes = new byte[(int)newfile.length()];
19        new FileInputStream(newfile).read(bytes);
20        System.out.println("** reload the original version");
21
22        hs.reload("HelloWorld", bytes);
23        new HelloWorld().print();
24    }
25}
26