"It just works - exactly as documented." -- I guess that's the one thing that Java is really good at.

I would even say you could go as far as saying it one end of the spectrum. Where you have frontend web apps (html/js/css) on a variety of platforms[1] on the one end and the big corporate backed languages and frameworks on the other end.

[1]: This can be a real pita. Though it's being mitigated more and more by adding compatibility layers on top (jQuery et al).