[pbreit]

It's a safe choice. It is easy to find Java developers with enterprise experience. There are lots of vendors and consultants with Java expertise. There is a lot of corporate mind share around Java. And at this point, most companies have a large investment in Java (or .net) so it makes sense to continue on that path.

"Taking months/years to get something off the ground" has little to do with Java itself and mostly to do with corporate project lifecycles.