In Linux, a non-root user usually clicks a jnlp link in a web browser or double-clicks a jnlp file to run a Java Web Start program.
The program has no root privilege.
How to run it as root ?
-> sudo javaws http://your-website/link.jnlp
or download the jnlp file and
-> sudo javaws ~/Test/link.jnlp
Reference:
