A complex Hello World

Every one likes to start off learning new technology with a simple hello world application. It is a quick and easy way to get your hands dirty.. My first C program was an hello world 3 line code and my first JAVA program was an hello world program too.. with a simple static void main() function.. I have started looking into mule now.. And the tutorial mentions about a hello world program to start with. Well.. i took a look into it.. a couple of java files with tons of complicated xml configuration.. Looks like i am going to have a whale of time getting used to the enterprise world!