Java Air: You arrive at the check-in counter to find that it is in fact only a Reference Implementation check-in counter for the Enterprise Check-In Counter API specified by a consortium last year, and does not provide a fully robust check-in counter, and in any case, there is now a 2.0 API. While you're standing there confused, you do notice there are five other check-out counters, so you pick one at random. The ticket turns out to be free. However, after receiving your ticket, you find out that in order to use your ticket to get to your destination, you will need to build a scaffolding from your area of the airport to the runway. Several days later, you arrive on the plane to find it missing several features you saw on other planes, such as reading lights or an onboard entertainment system. When you ask why the plane doesn't have these features you are told that they would confuse new passengers and in any case, just bring a flashlight and a book. In the end the flight goes smoothly, and you arrive where you want to go, but you feel really bored.
Ruby + Java:
http://www.theserverside.com/news/thread.tss?thread_id=53820PL1, C++, Php, .NET
http://www.matrixweb.nl/airlines.html