In GlassFish 3 and GlassFish 4 the configuration of a web application is done via glassfish-web.xml
. In your case the desired configuration file would look like this:
<!DOCTYPE glassfish-web-app PUBLIC
"-//GlassFish.org//DTD GlassFish Application Server 3.1 Servlet 3.0//EN"
"http://glassfish.org/dtds/glassfish-web-app_3_0-1.dtd">
<glassfish-web-app>
<context-root>/path/to/our/App</context-root>
</glassfish-web-app>
You can find further details in section GlassFish Server Deployment Descriptor Files of Oracle GlassFish Server Application Deployment Guide. A online version of this document can be found at http://docs.oracle.com/cd/E18930_01/html/821-2417/.