Java 代码优化：使用流操作简化列表处理

private List createScoreRecodeList1(final List tableSource, final String activityId) { return tableSource.stream() .filter(Objects::nonNull) .flatMap(scoreItem -> convertScores(scoreItem).stream()) .flatMap(scoreItem -> TreeBuilderUtil.postorderErgodic(scoreItem).stream()) .map(scoreItem -> createScoreRecode(scoreItem, activityId)) .collect(Collectors.toList()); }