File list (Check if you may need any files):
LibManageSystem\build.xml
...............\manifest.mf
...............\borrowedBook.txt
...............\unborrowedBook.txt
...............\userMessage.txt
...............\borrowedBook
...............\nbproject\project.xml
...............\.........\project.properties
...............\.........\build-impl.xml
...............\.........\genfiles.properties
...............\.........\private\private.properties
...............\.........\.......\config.properties
...............\.........\.......\private.xml
...............\src\Server\Server.java
...............\...\......\borrowedBook.txt
...............\...\......\unborrowedBook.txt
...............\...\......\userMessage.txt
...............\...\......\TestBufferR.java
...............\...\......\Example6.java
...............\...\Client\BookFrame.java
...............\...\......\CheckFrame.java
...............\...\......\ErrorFrame.java
...............\...\......\LandingFrame.java
...............\...\......\MainFrame.java
...............\...\......\MessageFrame.java
...............\...\......\ReturnFrame.java
...............\build\classes\Client\BookFrame$ButtonAction.class
...............\.....\.......\......\BookFrame.class
...............\.....\.......\......\CheckFrame$ButtonAction.class
...............\.....\.......\......\CheckFrame.class
...............\.....\.......\......\ErrorFrame$ButtonAction.class
...............\.....\.......\......\ErrorFrame.class
...............\.....\.......\......\LandingFrame$ButtonAction.class
...............\.....\.......\......\MainFrame$ButtonAction.class
...............\.....\.......\......\MainFrame.class
...............\.....\.......\......\MessageFrame$ButtonAction.class
...............\.....\.......\......\MessageFrame.class
...............\.....\.......\......\ReturnFrame$ButtonAction.class
...............\.....\.......\......\ReturnFrame.class
...............\.....\.......\......\LandingFrame.class
...............\.....\.......\Server\Example6.class
...............\.....\.......\......\TestBufferR.class
...............\.....\.......\......\unborrowedBook.txt
...............\.....\.......\......\borrowedBook.txt
...............\.....\.......\......\userMessage.txt
...............\.....\.......\......\Server.class
...............\.....\built-jar.properties
...............\dist\LibManageSystem.jar
...............\....\README.TXT
...............\build\classes\Client
...............\.....\.......\Server
...............\.....\generated-sources\ap-source-output
...............\nbproject\private
...............\src\Server
...............\...\Client
...............\build\classes
...............\.....\empty
...............\.....\generated-sources
...............\nbproject
...............\src
...............\test
...............\build
...............\dist
LibManageSystem