BTraceTest

/* BTrace Script Template */
import com.sun.btrace.annotations.*;
import static com.sun.btrace.BTraceUtils.*;

@BTrace
public class TracingScript {
	/* put your code here */
    @OnMethod(
         clazz = "mypackage.BTraceTest", 
         method = "init", 
         location = @Location(Kind.RETURN))
    public static void func(@Self mypackage.BTraceTest instance, @Return String result){
        println(" Call Stack ");
       // jstack();
        //println(strcat(" Parameter A ", str(a)));
        //println(strcat(" Parameter B ", str(b)));
        println(strcat(" Parameter Result ", str(result)));
    }     
}

package mypackage;

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class BTraceTest {
    public int add(int a, int b){
    	return a + b;
    }
    
    public static void main(String args[]) throws Exception{
    	BTraceTest test = new BTraceTest();
    	BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
    	for(int i = 0; i < 1000; i++){
    		reader.readLine();
//    		int a = (int)Math.round(Math.random() * 1000);
//    		int b = (int)Math.round(Math.random() * 1000);
//    		System.out.println(test.add(a, b));
    		System.out.println(test.init());
    	}
    }
    
    public String init(){
    	return "init";
    }
}