diff --git a/cim-core/src/com/farsunset/cim/nio/session/DefaultSessionManager.java b/cim-core/src/com/farsunset/cim/nio/session/DefaultSessionManager.java
index 6bf11ed..213d81c 100644
--- a/cim-core/src/com/farsunset/cim/nio/session/DefaultSessionManager.java
+++ b/cim-core/src/com/farsunset/cim/nio/session/DefaultSessionManager.java
@@ -75,7 +75,7 @@ public class DefaultSessionManager implements SessionManager{
     	 {
     		for(String key:sessions.keySet())
     		{
-    			if(sessions.get(key).equals(ios) || sessions.get(key).getId()==ios.getId())
+    			if(sessions.get(key).equals(ios) || sessions.get(key).getNid()==ios.getNid())
     			{
     				return key;
     			}
diff --git a/ichat-server/WebRoot/WEB-INF/lib/cim-core.1.5.jar b/ichat-server/WebRoot/WEB-INF/lib/cim-core.1.5.jar
index 6c30579..690a9bd 100644
Binary files a/ichat-server/WebRoot/WEB-INF/lib/cim-core.1.5.jar and b/ichat-server/WebRoot/WEB-INF/lib/cim-core.1.5.jar differ
diff --git a/ichat-server/WebRoot/WEB-INF/lib/mina-core-2.0.7.jar b/ichat-server/WebRoot/WEB-INF/lib/mina-core-2.0.7.jar
index 02c515e..e2fe618 100644
Binary files a/ichat-server/WebRoot/WEB-INF/lib/mina-core-2.0.7.jar and b/ichat-server/WebRoot/WEB-INF/lib/mina-core-2.0.7.jar differ