I work for a coding bootcamp that also offers onsite corporate training. Our focus is ruby/rails/javascript/API not Java. We may not be the best fit but I can recommend New Horizons. Here: https://nhlearningsolutions.com/FindTraining/Java/tabid/2904...

Looks like they offer Java 8 training. If I remember correctly onsite 5 day training cost 20k-25k for 10+ people who already have dev experience. Pricey but a lot cheaper than hiring a team of Java developers.

Feel free to email if you have any questions or happen to be located in the Chicago/New York/San Francisco area and want to talk about what we can offer. taylor@actualize.co

Thanks I'll look into them.

My company specializes in onsite training. Courses are taught by an expert, small class size to ensure quality (12 max), meticulous definition of every term, correct sequence of presentation of materials so that everyone understands -- and plenty of lab exercise to cement that understanding! I've had students remark it was the best training they've ever had. We started out training system administrators but now train developers as well (and everything in between).

It's not ground up training, but once you've done that...and have a decent base of Java skills on place...

You might consider talking with either ThoughtWorks or Pivotal Labs. Both have deep Java expertise, but more importantly, the ability to have your team members work side by side with them on the other aspects of dev methodology.

Neither is inexpensive, but may be helpful if your team is trying to bridge more than just a Java knowledge gap.