I'm a systems engineer, but I have to touch some Java code from time to time. I always have an hard time with the amount of indirection an average Java developer can reach. Luckily a few smart guys were hired recently and they have past experience in contributing to the JVM and their approach to the code is completely different and much, much more simple to understand, and since they came onboard the performance of critical parts of our main application increased dramatically with a few lines of code instead of the previous 400 or so.
It probably has to do with the "enterprise" culture that tends to err on the side of overgeneralising things and applying far too much abstraction (Java came into being at a time when the OOP fad was gaining significant traction.) The standard library also being in that style encourages this too.
But things like Java4K suggest that it's definitely possible to do a lot in a tiny amount of code.