diff --git a/modules/rampart-trust/src/main/java/org/apache/rahas/SimpleTokenStore.java b/modules/rampart-trust/src/main/java/org/apache/rahas/SimpleTokenStore.java
index 61ebc08..af18d82 100644
--- a/modules/rampart-trust/src/main/java/org/apache/rahas/SimpleTokenStore.java
+++ b/modules/rampart-trust/src/main/java/org/apache/rahas/SimpleTokenStore.java
@@ -23,7 +23,11 @@
 import javax.xml.namespace.QName;
 
 import java.io.Serializable;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Hashtable;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
 import java.util.concurrent.locks.Lock;
 import java.util.concurrent.locks.ReadWriteLock;
 import java.util.concurrent.locks.ReentrantReadWriteLock;