Running ECi Advantage in Linux Mint and Ubuntu
Here's a quick rundown; there are just a few commands to run.
First, get rid of the openjdk that comes in Ubuntu:
sudo apt-get purge openjdk*
Now add a repo, update the OS, and install java from that repo
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer
NextGen needs Arial, which is an MS font, so you also need a:
sudo apt-get install ttf-mscorefonts-installer
From a command line, run jcontrol to set security level down. NextGen won't run otherwise.