docs: private static List<HttpHandler> getHandlersFromExecList(List<String> execs) {
  		List<HttpHandler> handlersFromExecList = new ArrayList<>();
  		if (execs != null) {
  			for (String exec : execs) {
  				List<HttpHandler> handlerList = handlerListById.get(exec);
  				if (handlerList == null)
  					throw new RuntimeException("Unknown handler or chain: " + exec);
  				
  				for(HttpHandler handler : handlerList) {
  					if(handler instanceof MiddlewareHandler) {
  						// add the handler to the list of handlers to execute if it is enabled in the configuration
  						if(((MiddlewareHandler)handler).isEnabled()) {
  							handlersFromExecList.add(handler);
  						}
  					} else {
  						handlersFromExecList.add(handler);
  					}
  				}
  			}
  		}
  		return handlersFromExecList;
  	}