No XML Configuration files specified in start.config or command line.
As stated earlier. start.jar or jetty-start.jar is very light in this release.
META-INF/
META-INF/MANIFEST.MF
org/
org/eclipse/
org/eclipse/jetty/
org/eclipse/jetty/start/
org/eclipse/jetty/start/Main$1.class
org/eclipse/jetty/start/Main.class
org/eclipse/jetty/start/Config.class
org/eclipse/jetty/start/JarVersion.class
org/eclipse/jetty/start/Main$2.class
org/eclipse/jetty/start/Monitor.class
org/eclipse/jetty/start/start.config
org/eclipse/jetty/start/Config$1.class
org/eclipse/jetty/start/FilenameComparator.class
org/eclipse/jetty/start/Classpath$Loader.class
org/eclipse/jetty/start/Config$2.class
org/eclipse/jetty/start/Classpath.class
org/eclipse/jetty/start/Config$3.class
org/eclipse/jetty/start/Version.class
org/eclipse/jetty/start/usage.txt
about.html
META-INF/maven/
META-INF/maven/org.eclipse.jetty/
META-INF/maven/org.eclipse.jetty/jetty-start/
META-INF/maven/org.eclipse.jetty/jetty-start/pom.xml
META-INF/maven/org.eclipse.jetty/jetty-start/pom.properties
Which means that it expects jetty to be on the class path which is not the case for this application.
java -jar start.jar port war etc.