How to run Side-by-side search comparison tool on Mac

[Svetoslav]

Hello,

Hope this is not a stupid question but I would like to try the side-by-
side tool on my Mac OS X. Anyone who knows how I should run it? I type
the command as it is given in the wiki but I get the following
exception:

Exception in thread "main" java.lang.NoClassDefFoundError: org/mortbay/
jetty/Handler
Caused by: java.lang.ClassNotFoundException: org.mortbay.jetty.Handler
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:319)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:330)
at java.lang.ClassLoader.loadClass(ClassLoader.java:254)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:402)

What did I miss?

Thank you!
Svetoslav