File list (Check if you may need any files):
chat
....\.classpath
....\.project
....\.settings
....\.........\org.eclipse.jdt.core.prefs
....\bin
....\...\com
....\...\...\sparrow
....\...\...\.......\chatclient
....\...\...\.......\..........\bo
....\...\...\.......\..........\..\ChatData$ReciveThread.class
....\...\...\.......\..........\..\ChatData.class
....\...\...\.......\..........\ui
....\...\...\.......\..........\..\bg.png
....\...\...\.......\..........\..\ChatClient$1.class
....\...\...\.......\..........\..\ChatClient$2.class
....\...\...\.......\..........\..\ChatClient$3.class
....\...\...\.......\..........\..\ChatClient$4.class
....\...\...\.......\..........\..\ChatClient.class
....\...\...\.......\chatservice
....\...\...\.......\...........\ChatServer$ChatClient.class
....\...\...\.......\...........\ChatServer.class
....\...\...\.......\test
....\...\...\.......\....\ChatClient$1.class
....\...\...\.......\....\ChatClient$RecvThread.class
....\...\...\.......\....\ChatClient$TFListener.class
....\...\...\.......\....\ChatClient.class
....\...\...\.......\....\Server$ClientThread.class
....\...\...\.......\....\Server.class
....\...\...\.......\....\TestClient$1.class
....\...\...\.......\....\TestClient$ServerThread.class
....\...\...\.......\....\TestClient$TFListener.class
....\...\...\.......\....\TestClient.class
....\...\...\.......\....\TestClientDemo.class
....\...\...\.......\....\TestServer$ClientThread.class
....\...\...\.......\....\TestServer.class
....\...\...\.......\....\TestServerDemo$1.class
....\...\...\.......\....\TestServerDemo$OnlineThread.class
....\...\...\.......\....\TestServerDemo.class
....\...\...\.......\....\TestSocket.class
....\...\...\.......\....\TestThreadPool$1.class
....\...\...\.......\....\TestThreadPool.class
....\lib
....\...\commons-lang3-3.1-sources.jar
....\...\commons-lang3-3.1.jar
....\src
....\...\com
....\...\...\sparrow
....\...\...\.......\chatclient
....\...\...\.......\..........\bo
....\...\...\.......\..........\..\ChatData.java
....\...\...\.......\..........\ui
....\...\...\.......\..........\..\bg.png
....\...\...\.......\..........\..\ChatClient.java
....\...\...\.......\chatservice
....\...\...\.......\...........\ChatServer.java
....\...\...\.......\test
....\...\...\.......\....\ChatClient.java
....\...\...\.......\....\Server.java
....\...\...\.......\....\TestClient.java
....\...\...\.......\....\TestClientDemo.java
....\...\...\.......\....\TestServer.java
....\...\...\.......\....\TestServerDemo.java
....\...\...\.......\....\TestSocket.java
....\...\...\.......\....\TestThreadPool.java