How to launch web start on 10.10 OSX My wife is taking an online class and it says it needs to launch using Java Web Start.  I've changed the endings from .ed files to .jnlp files and make sure I click open other and select Java Web start.

Tech support wasn't helpful at all.
After installing Java for OS X 2014-001 it works. 

http://support.apple.com/kb/DL1572?viewlocale=en_US&amp;locale=en_US