My experience consists of 2,5 years of Java development, eclipse environment, database manipulation and self improvement.
In these years I've worked on several projects using the technologies above (in the Skills area). But the one I am most proud of is the last one. Long story short: our client had some machines, those machines had loggs (undecipherable stuff) and we had to build a web-app that parsed those files, computed some values, stats, parameters and provided them for the user in very friendly way. The challenge was the fact that we had to stick to our cilent's ancient environment: MongoDB says it all.