Cleanup
diff --git a/src/main/java/org/apache/sling/serviceusermapping/impl/ServiceUserMapperImpl.java b/src/main/java/org/apache/sling/serviceusermapping/impl/ServiceUserMapperImpl.java
index 1fbfa10..658f873 100644
--- a/src/main/java/org/apache/sling/serviceusermapping/impl/ServiceUserMapperImpl.java
+++ b/src/main/java/org/apache/sling/serviceusermapping/impl/ServiceUserMapperImpl.java
@@ -18,7 +18,21 @@
*/
package org.apache.sling.serviceusermapping.impl;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Dictionary;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Hashtable;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.SortedMap;
+import java.util.SortedSet;
+import java.util.TreeMap;
+import java.util.TreeSet;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
