tracks/java/exercises/twelve-days/src/main/java/TwelveDays.java in trackler-2.2.0.0 vs tracks/java/exercises/twelve-days/src/main/java/TwelveDays.java in trackler-2.2.0.1

@@ -4,6 +4,10 @@
     }
 
     String verses(int startVerse, int endVerse) {
         throw new UnsupportedOperationException("Delete this statement and write your own implementation.");
     }
+    
+    String sing() {
+        throw new UnsupportedOperationException("Delete this statement and write your own implementation.");
+    }
 }