File list (Check if you may need any files):
LibraryManagement\.metadata\.lock
.................\.........\.log
.................\.........\.plugins\org.eclipse.core.resources\.root\.indexes\history.version
.................\.........\........\..........................\.....\........\properties.index
.................\.........\........\..........................\.....\........\properties.version
.................\.........\........\..........................\.....\1.tree
.................\.........\........\..........................\.safetable\org.eclipse.core.resources
.................\.........\........\..................untime\.settings\org.eclipse.core.resources.prefs
.................\.........\........\........................\.........\org.eclipse.jdt.ui.prefs
.................\.........\........\........................\.........\org.eclipse.ui.ide.prefs
.................\.........\........\........................\.........\org.eclipse.ui.prefs
.................\.........\........\............e4.workbench\workbench.xmi
.................\.........\........\............jdt.core\invalidArchivesCache
.................\.........\........\....................\nonChainingJarsCache
.................\.........\........\....................\variablesAndContainers.dat
.................\.........\........\................ui\dialog_settings.xml
.................\.........\........\..................\OpenTypeHistory.xml
.................\.........\........\..................\QualifiedTypeNameHistory.xml
.................\.........\........\............ui.workbench\dialog_settings.xml
.................\.........\........\........................\workingsets.xml
.................\.........\version.ini
.................\.project
.................\bak\BookAdd.java~1~
.................\...\BookAdd.java~2~
.................\...\BookAdd.java~3~
.................\...\BookAdd.java~4~
.................\...\BookAdd.java~5~
.................\...\BookAdd.java~6~
.................\...\BookAdd.java~7~
.................\...\BookAdd.java~8~
.................\...\BookAdd.java~9~
.................\...\BookDelete.java~1~
.................\...\BookDelete.java~2~
.................\...\BookDelete.java~3~
.................\...\BookList.java~1~
.................\...\BookList.java~2~
.................\...\BookList.java~3~
.................\...\BookModify.java~1~
.................\...\BookModify.java~2~
.................\...\BookModify.java~3~
.................\...\BookModify.java~4~
.................\...\BookModify.java~5~
.................\...\BorrowBook.java~1~
.................\...\BorrowBook.java~2~
.................\...\BorrowBook.java~3~
.................\...\BorrowBook.java~4~
.................\...\BorrowBook.java~5~
.................\...\BorrowBook.java~6~
.................\...\BorrowBook.java~7~
.................\...\BorrowBook.java~8~
.................\...\BorrowBook.java~9~
.................\...\BorrowBookList.java~1~
.................\...\BorrowBookList.java~2~
.................\...\BorrowBookList.java~3~
.................\...\BorrowInfo.java~1~
.................\...\BorrowInfo.java~2~
.................\...\BorrowInfo.java~3~
.................\...\BorrowInfo.java~4~
.................\...\BorrowInfo.java~5~
.................\...\DataBaseManager.java~1~
.................\...\DataBaseManager.java~2~
.................\...\DataBaseManager.java~3~
.................\...\DataBaseManager.java~4~
.................\...\Desktop_.ini
.................\...\MainFrame.java~1~
.................\...\MainWindow.java~13~
.................\...\MainWindow.java~14~
.................\...\MainWindow.java~15~
.................\...\MainWindow.java~16~
.................\...\MainWindow.java~17~
.................\...\MainWindow.java~18~
.................\...\MainWindow.java~19~
.................\...\MainWindow.java~20~
.................\...\MainWindow.java~21~
.................\...\MainWindow.java~22~
.................\...\ReturnBook.java~1~
.................\...\ReturnBook.java~2~
.................\...\ReturnBook.java~3~
.................\...\ReturnBook.java~4~
.................\...\ReturnBook.java~5~
..