File list (Check if you may need any files):
MyFirstProject\build.xml
MyFirstProject\build
MyFirstProject\build\classes
MyFirstProject\build\classes\myfirstproject
MyFirstProject\build\classes\myfirstproject\MyFirstProject.class
MyFirstProject\manifest.mf
MyFirstProject\nbproject
MyFirstProject\nbproject\build-impl.xml
MyFirstProject\nbproject\genfiles.properties
MyFirstProject\nbproject\private
MyFirstProject\nbproject\private\private.properties
MyFirstProject\nbproject\project.properties
MyFirstProject\nbproject\project.xml
MyFirstProject\src
MyFirstProject\src\myfirstproject
MyFirstProject\src\myfirstproject\MyFirstProject.java