How do I deploy my WAR to the JBoss Root Context?

Issue

• After deploying an application titled 'TEST.war' to the "/" context and browsing to the index.html "Jboss EAP Welcome page", the following error is seen:

    org.jboss.kernel.plugins.dependency.AbstractKernelController] Error installing to Start: 
    name=jboss.web.deployment:war=/ state=Create mode=Manual requiredState=Installed 
    [ActivityHistoryIfExistsFollows:][ExceptionIfExistsFollows:] org.jboss.deployers.spi.DeploymentException: 
      Web mapping already exists for deployment URL file:/opt/jboss/jboss-eap-5.1.2/jboss-as/server/occ-epc-az-qa/deploy/az.war/

• Additionally, the ROOT.war/index.html page is shown, when it should be the TEST.war/index.html page.