The sources are in the .jar file

compiled with Oracle Java jdk 1.6.0_35

command lines were:

javac -g -target 1.5 @src.txt

jar -cfm MyGoGrinder.jar MANIFEST.MF GoGrinder com d MyGoGrinder.class MyGoGrinder.java version.txt

In fact I used a small windows batch file, which wrote time, date, compiler 
  version and added one byte to the buildcount file