File list (Check if you may need any files):
EJBDemo
.......\.classpath
.......\.mymetadata
.......\.project
.......\classes
.......\.......\com
.......\.......\...\ch
.......\.......\...\..\ejb
.......\.......\...\..\...\Calculator.class
.......\.......\...\..\...\CalculatorRemote.class
.......\.......\...\..\test
.......\.......\...\..\....\Test.class
.......\.......\META-INF
.......\.......\........\MANIFEST.MF
.......\src
.......\...\com
.......\...\...\ch
.......\...\...\..\ejb
.......\...\...\..\...\Calculator.java
.......\...\...\..\...\CalculatorRemote.java
.......\...\...\..\test
.......\...\...\..\....\Test.java
.......\...\META-INF
.......\...\........\MANIFEST.MF