Container Specific XML descriptor files

• Most containers have their own XML descriptor files that are necessary to deploy a Web App

• Since Java EE 6 and Servlet 3.0 you are not required to have a web.xml file but, can instead use annotations to
  signify information you would have found in the web.xml deployment description

Resources

• You must read your Java EE Server Containers Documentation

CASE/EXAMPLE: GlassFish (sun-web.xml file) ------ using Eclipse with GlashFish Pluggin

NOTE: The sun-web.xml file in the directory