The .JNLP file used with this application illustrates how it’s possible for signed code to execute outside the default sandbox environment provided by Java Web Start.

What is a sandbox? This first sandbox that most Java developers collide with is the one that contains applets within a Web browser. The default behavior, the most restrictive one, prohibits almost ...

Like Java applets, your application will be constrained to a sandbox on the client unless you used signed jars and configure permissions correctly in your application's JNLP file.