[buahahaha]

As not a java guy: very good concurrency support, the memory consumption isn't really a big deal anymore and the tooling connected to the jvm for introspection are very valuable and relatively easy to set up, strong user base of programmers relatively speaking, the language updates have kept it relatively fresh and useable - much cleaner than what you remember for 5-8 years ago - and it runs easily on many systems. It has good inertia: once some of your projects are already in java, it's easy to just add onto that. It has solved many of the day-to-day problems that younger languages haven't reached yet (distributed packaging, metrics). And everything supports it.