代码优化private CollectionActivityScoreItemEntity convertActivityScoreItemsfinal ListScoreItemConfigVOActivityScoreItemEntity ActivityScoreTableEntity scoreItemConfigs final ListActivityScoreItemE

private Collection convertActivityScoreItems(final List<ScoreItemConfigVO<ActivityScoreItemEntity, ActivityScoreTableEntity>> scoreItemConfigs) { return CollectionUtils.emptyIfNull(scoreItemConfigs) .stream() .flatMap(config -> config.getScoreItemList().stream()) .flatMap(item -> TreeBuilderUtil.postorderErgodic(item).stream()) .collect(Collectors.toList()); }