diff --git a/hexagonal/src/main/java/com/iluwatar/hexagonal/domain/LotteryNumbers.java b/hexagonal/src/main/java/com/iluwatar/hexagonal/domain/LotteryNumbers.java
index 522f59f7e..65b173cab 100644
--- a/hexagonal/src/main/java/com/iluwatar/hexagonal/domain/LotteryNumbers.java
+++ b/hexagonal/src/main/java/com/iluwatar/hexagonal/domain/LotteryNumbers.java
@@ -29,7 +29,6 @@ import java.util.HashSet;
 import java.util.PrimitiveIterator;
 import java.util.Random;
 import java.util.Set;
-import java.util.Iterator;
 
 /**
  *
diff --git a/hexagonal/src/main/java/com/iluwatar/hexagonal/domain/LotteryTicketId.java b/hexagonal/src/main/java/com/iluwatar/hexagonal/domain/LotteryTicketId.java
index fedaca684..a63c56776 100644
--- a/hexagonal/src/main/java/com/iluwatar/hexagonal/domain/LotteryTicketId.java
+++ b/hexagonal/src/main/java/com/iluwatar/hexagonal/domain/LotteryTicketId.java
@@ -23,7 +23,6 @@
 package com.iluwatar.hexagonal.domain;
 
 import java.util.concurrent.atomic.AtomicInteger;
-import java.util.concurrent.atomic.LongAdder;
 
 /**
  * Lottery ticked id