1 files changed, 12 insertions, 2 deletions
diff --git a/core/src/test/java/org/elasticsearch/common/cache/CacheTests.java b/core/src/test/java/org/elasticsearch/common/cache/CacheTests.java
index 3809040366..369aa8bcaf 100644
--- a/core/src/test/java/org/elasticsearch/common/cache/CacheTests.java
+++ b/core/src/test/java/org/elasticsearch/common/cache/CacheTests.java
@@ -24,8 +24,18 @@ import org.junit.Before;
 
 import java.lang.management.ManagementFactory;
 import java.lang.management.ThreadMXBean;
-import java.util.*;
-import java.util.concurrent.*;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Random;
+import java.util.Set;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicLong;
 import java.util.concurrent.atomic.AtomicReferenceArray;