I am using Netbeans which I prefer Oracle jdk8. Just now Ubuntu said I had an incomplete upgrade to 16.04. No problem, I let it do its thing.
To my surprise it removed Oracle JDK and put openjdk in its place. Apparently Ubuntu must have openjdk-8?? If it removed my Oracle jdk, that implies that I can't have both?
I don't care if Ubuntu wants openjdk for its own purposes, but how do get back my Oracle JDK for Netbeans? Can I install it alongside the openjdk? Then I can use the Oracle for Netbeans and let Ubuntu do whatever it wants with the openjdk?