1. ASM
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello World!");
}
}
2. Javassist
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello World!");
}
}
3. AspectJ
public aspect LoggingAspect {
pointcut executionLog(): execution(* HelloWorld.main(String[]));
before(): executionLog() {
System.out.println("Method executed: HelloWorld.main");
}
}
