자바의 섬 문제

public class Demo{
   Demo i;
   public static void main(String[] args){
      Demo my_ob_1 = new Demo();
      System.out.println("Demo object one has been created");
      Demo my_ob_2 = new Demo();
      System.out.println("Demo object two has been created");
      my_ob_1.i = my_ob_2;
      my_ob_2.i = my_ob_1;
      my_ob_1 = null;
      my_ob_2 = null;
      System.gc();
   }
   @Override
   protected void finalize() throws Throwable{
      System.out.println("The finalize method has been called on the object");
   }
}

Demo object one has been created
Demo object two has been created
The finalize method has been called on the object
The finalize method has been called on the object