ApplicationServlet servlet = context.getServlet();
IApplicationSpecification spec = servlet.getApplicationSpecification();
result.addSource(new PropertyHolderPropertySource(spec));
result.addSource(new ServletPropertySource(servlet.getServletConfig()));
result.addSource(new ServletContextPropertySource(servlet.getServletContext()));
if (spec.checkExtension(EXTENSION_PROPERTY_SOURCE_NAME))
{
IPropertySource source =
(IPropertySource) spec.getExtension(