Create a file called „BeanShell.desktop“:

[Desktop Entry]
Name=BeanShell
Comment=Lightweight Scripting for Java
Exec=java -jar /home/user/BeanShell/bsh-2.0b4.jar
#Icon=/home/user/BeanShell/bsh.png
Terminal=false
Type=Application
Categories=Development;Java;
Encoding=UTF-8
MimeType=text/plain;text/x-bsh;application/x-bsh

Put the file in „~/.local/share/applications“.

Or install the fedora pacakge „bsh-utils“, that will install the a BeanShell v1.3. Start with „bsh“ or „bsh-desktop“.