I made my java project into an executable jar using the export to jar option in eclipse. The jar runs as expected, except that it does not use any of the serialized files. I
You need your JAR to use the same path for reading the Serialized Files as your code in eclipse.
So you make a properties file containing the directory with your serialized objects. Then, this is the same for both your JAR and our project.
See also: http://www.mkyong.com/java/java-properties-file-examples/