1   package ch.qos.logback.classic.spi;
2   
3   // non serializable object
4   public class LuckyCharms {
5     int id;
6     
7     LuckyCharms(int id) {
8       this.id= id;
9     }
10    
11    @Override
12    public String toString() {
13      return "LC("+id+")";
14    }
15  }