Using java based WebApplicationInitializer in NetBeans

I'musing Netbeans 8 for developing a Spring MVC project. I'm following the tutorial given at http://ift.tt/1k2sIO4.

However, the Netbeans pre-configured the project using web.xml, I wish to use the java-based WebApplicationInitializer, like this one http://ift.tt/1apoj20.

How do I configure the project, so I can use java-based application Initializer instead of xml one?