--- jsr166/src/test/loops/CheckedLockLoops.java	2015/01/15 18:34:18	1.11
+++ jsr166/src/test/loops/CheckedLockLoops.java	2016/12/31 18:54:28	1.12
@@ -8,9 +8,14 @@
  * @summary basic safety and liveness of ReentrantLocks, and other locks based on them
  */
 
-import java.util.*;
-import java.util.concurrent.*;
-import java.util.concurrent.locks.*;
+import java.util.concurrent.Callable;
+import java.util.concurrent.CyclicBarrier;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Semaphore;
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+import java.util.concurrent.locks.ReentrantReadWriteLock;
 
 public final class CheckedLockLoops {
     static final ExecutorService pool = Executors.newCachedThreadPool();