The job of configuring Jetty is building:
As Jetty components are simply Plain Old Java Objects (POJOs), you can accomplish this assembly and configuration of components by a variety of techniques:
List the resolved configuration that will be used to start Jetty.
java -jar start.jar --list-config
The –list-config command displays a trove of information about the server including the Java and Jetty environments, the configuration order, any JVM arguments or System Properties set, general server properties, a full listing of the Jetty server class path, and active Jetty XML files.