diff --git a/module-client/src/main/java/org/apache/http/impl/conn/tsccm/ThreadSafeClientConnManager.java b/module-client/src/main/java/org/apache/http/impl/conn/tsccm/ThreadSafeClientConnManager.java
index 911831add..ccbc79a45 100644
--- a/module-client/src/main/java/org/apache/http/impl/conn/tsccm/ThreadSafeClientConnManager.java
+++ b/module-client/src/main/java/org/apache/http/impl/conn/tsccm/ThreadSafeClientConnManager.java
@@ -31,17 +31,6 @@
 package org.apache.http.impl.conn.tsccm;
 
 import java.io.IOException;
-import java.lang.ref.Reference;
-import java.lang.ref.ReferenceQueue;
-import java.lang.ref.WeakReference;
-import java.util.ArrayList;
-import java.util.Set;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.LinkedList;
-import java.util.Map;
-import java.util.WeakHashMap;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
@@ -54,7 +43,8 @@
 import org.apache.http.conn.SchemeRegistry;
 import org.apache.http.conn.params.HttpConnectionManagerParams;
 import org.apache.http.params.HttpParams;
-import org.apache.http.impl.conn.*; //@@@ specify
+import org.apache.http.impl.conn.DefaultClientConnectionOperator;
+
 
 
 /**