Syntax error on token "Invalid Character", delete this token

I am not sure why is it giving this error. Braces seem to be right. Another thing is that the same program works in Windows-eclipse but not in eclipse for Mac. What could be the reason?

import java.util.Vector;

public class Debug 
{
    private int something = 0;
    private Vector list = new Vector();

    public void firstMethod()
    {
        thirdMethod(something);
        something = something + 1;
    }
    public void secondMethod()
    {
        thirdMethod(something);
        something = something + 2;
    }
    public void thirdMethod(int value)
    {
        something = something + value;
    }

    public static void main(String[] args)
    {
        Debug debug = new Debug();
        debug.firstMethod();
        debug.secondMethod();
    }
}