Understanding Class Loaders - Apache Tomcat?

  1. In the following chapter of the :
    Ignition SDK Programmer’s Guide Ignition SDK Programmers Guide Getting Started

docs.inductiveautomation.com:84 … ss+Loaders

the diagram for the Gateway shows dependency on the Apache Tomcat. Why?

  1. Does the Gateway use Apache Tomcat or Jetty framework?

It used to use Tomcat, now it uses Jetty.