holder = _context.getServletHandler().newServletHolder(Holder.Source.ANNOTATION);
holder.setHeldClass(clazz);
metaData.setOrigin(servletName+".servlet.servlet-class",annotation,clazz);
holder.setName(servletName);
holder.setDisplayName(annotation.displayName());
metaData.setOrigin(servletName+".servlet.display-name",annotation,clazz);
holder.setInitOrder(annotation.loadOnStartup());
metaData.setOrigin(servletName+".servlet.load-on-startup",annotation,clazz);