I am having trouble folowing this http://hrycan.com/2012/03/28/primefaces-lazy-loading-datatable-for-jsf2/
It says I should just run
mvn jetty:run
Make sure you are executing command 'mvn jetty:run', from inside your project directory. If you will listed the current directory you should see the pom.xml.
If you are in not in your project and running 'mvn jetty:run', will get Error "Missing Maven Plugin Jetty"
org.mortbay.jetty
jetty-maven-plugin
8.1.12.v20130726
todostop
9999
Hope it will help