long start = appInitializer.getStartTime();
long toRegistry = appInitializer.getRegistryCreatedTime();
ServletApplicationInitializer ai = _registry.getService(
"tapestry.ServletApplicationInitializer",
ServletApplicationInitializer.class);
ai.initializeApplication(filterConfig.getServletContext());
_handler = _registry.getService(
"tapestry.HttpServletRequestHandler",
HttpServletRequestHandler.class);