--- a/test/jdk/java/util/Collection/IteratorMicroBenchmark.java	Tue Oct 03 13:55:05 2017 -0700
+++ b/test/jdk/java/util/Collection/IteratorMicroBenchmark.java	Tue Oct 03 14:00:00 2017 -0700
@@ -36,12 +36,10 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Deque;
-import java.util.Enumeration;
 import java.util.Iterator;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.ListIterator;
-import java.util.Map;
 import java.util.PriorityQueue;
 import java.util.Spliterator;
 import java.util.Vector;
@@ -52,7 +50,6 @@
 import java.util.concurrent.LinkedBlockingQueue;
 import java.util.concurrent.LinkedTransferQueue;
 import java.util.concurrent.PriorityBlockingQueue;
-import java.util.concurrent.ConcurrentSkipListMap;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.ThreadLocalRandom;
 import java.util.concurrent.TimeUnit;