I just downloaded the last version of as2 .sh file.
1) I had to convert it to unix document as it seems to have been done on windows environnement and cannot be launched.
2) I got the following error when starting the script:
Error: Could not find or load main class de.mendelson.comm.as2.AS2
Caused by: java.lang.ClassNotFoundException: de.mendelson.comm.as2.AS2
Thanks in advance for your support.