File list (Check if you may need any files):
assignment2
...........\.classpath
...........\.project
...........\bin
...........\...\common
...........\...\......\ChatObserver.class
...........\...\......\ChatSubject.class
...........\...\......\ChatUpdate.class
...........\...\......\Config.class
...........\...\gui
...........\...\...\LogIn.class
...........\...\...\Register$ButtonHandler.class
...........\...\...\Register.class
...........\...\...\ReLog.class
...........\...\model
...........\...\.....\Chat.class
...........\...\observerclient
...........\...\..............\ChatObserverClient.class
...........\...\..............\ChatObserverClientController.class
...........\...\..............\ChatObserverClientFrame.class
...........\...\..............\ChatObserverClientView.class
...........\...\server
...........\...\......\ChatServer.class
...........\...\......\ChatServerController.class
...........\...\Test.class
...........\...\TestLogin.class
...........\...\TestSaxUserListParser.class
...........\...\updateclient
...........\...\............\ChatUpdateClient.class
...........\...\............\ChatUpdateClientController.class
...........\...\............\ChatUpdateClientFrame.class
...........\...\............\ChatUpdateClientView.class
...........\...\user
...........\...\....\xml
...........\...\....\...\Login.class
...........\...\....\...\UserList.class
...........\...\....\...\UserListParser.class
...........\...\....\...\Users.class
...........\...\xml
...........\...\...\XMLUtil.class
...........\src
...........\...\common
...........\...\......\ChatObserver.java
...........\...\......\ChatSubject.java
...........\...\......\ChatUpdate.java
...........\...\......\Config.java
...........\...\gui
...........\...\...\LogIn.java
...........\...\...\Register.java
...........\...\...\ReLog.java
...........\...\model
...........\...\.....\Chat.java
...........\...\observerclient
...........\...\..............\ChatObserverClient.java
...........\...\..............\ChatObserverClientController.java
...........\...\..............\ChatObserverClientFrame.java
...........\...\..............\ChatObserverClientView.java
...........\...\server
...........\...\......\ChatServer.java
...........\...\......\ChatServerController.java
...........\...\Test.java
...........\...\TestLogin.java
...........\...\TestSaxUserListParser.java
...........\...\updateclient
...........\...\............\ChatUpdateClient.java
...........\...\............\ChatUpdateClientController.java
...........\...\............\ChatUpdateClientFrame.java
...........\...\............\ChatUpdateClientView.java
...........\...\user
...........\...\....\xml
...........\...\....\...\Login.java
...........\...\....\...\UserList.java
...........\...\....\...\UserListParser.java
...........\...\....\...\Users.java
...........\...\xml
...........\...\...\XMLUtil.java