public DigesterFacesConfigUnmarshallerImpl(ExternalContext externalContext)
{
digester = new Digester();
digester.setValidating(true);
digester.setNamespaceAware(true);
digester.setEntityResolver(new FacesConfigEntityResolver(externalContext));
digester.setUseContextClassLoader(true);
digester.addObjectCreate("faces-config", FacesConfig.class);
digester.addObjectCreate("faces-config/application", Application.class);
digester.addSetNext("faces-config/application", "addApplication");