@SuppressWarnings("unchecked")
        public Builder addList(String prefix, HandlersSubmapping list) {
            for(HandlersMappingEntry<?> en : list.getMappingGet()) {
                mappingGet.add(new HandlersMappingEntry(prefix, en));
            }
            for(HandlersMappingEntry<?> en : list.getMappingPost()) {
                mappingPost.add(new HandlersMappingEntry(prefix, en));
            }
            for(HandlersMappingEntry<?> en : list.getMappingPut()) {
                mappingPut.add(new HandlersMappingEntry(prefix, en));
            }
            for(HandlersMappingEntry<?> en : list.getMappingDelete()) {
                mappingDelete.add(new HandlersMappingEntry(prefix, en));
            }
            return this;
        }