Java standalone application? Any Servlet container (like Apache Tomcat) behind?

Java standalone application? Any Servlet container (like Apache Tomcat) behind?

Hello

I wonder is this ServiceDesk Plus web application is deploed as a simple java standalone apprication?
I would rather expect to have enterprise applications deployed on scallable application servers like Apache Tomcat at least.

Any info on this would be appreciated.
Thanks and regards,
Alexey