You will find [b]checkbox[/b] with label "Upload new EJS jar file." at the same line for the [b]Post[/b] button(when you edit the forum message).
Click the check box , then select EJS jar file.
Then submit the message (click Post button after you select EJS jar file).
You will find upload simulation at the end of forum message automatically.
However, you need to save ejs source under ejsworkspace/users/. otherwise, it will not work.
I have upload newly generated jar file for you!
You might want to try it by yourself.