This one really got me laughing :-) Geek humor at its best!
They’re creating a hilarious new movie about Websphere developers. It’s called Dude! Where’s My Classpath?
To get it, first you must use WebSphere Application Server for a while. Then you must know about the movie. You could also ask Cedric.
WAS is well-known for its classloader weirdness. IBM has a whole article about it. TheServerSide has a good general article about J2EE classloading.