I want to do this too, but I have run into a problem. I installed the latest JRE in my game’s directory. Shortly afterwards, it pops up the “Java updater” dialog. This could be a bit confusing for the non-technical user. But what is seriously wrong, is that if you click on “install”, it does not install the updated JRE over old one. It installs a new version of the JRE in the default C:/JRE… folder. Then the next time Java Updater runs, my bundled version has not been updated, so it asks to install a new JRE again. With the same result. Anyone else come across this? Seems like the Updater should update the location it is running from.
I’m thinking that this is because I actually installed the JRE in my game directory. If I just copy and paste the JRE folder into the game directory as Riven suggests, does this stop the Java Updater from kicking in?