toMap - bug

原因：AttachmentInfoRespnse::getAssociateKeyId 作为键重复了，代码没有指定如何处理

//Duplicate key：错误代码
final Map<Long，String> keyIdWithPathMap = attachmentInfoResponse.stream().collect(Collections.toMap(AttachmentInfoRespnse::getAssociateKeyId, item -> Optional.of(item.getxxx()).orElse)))


//解决代码：toMap第三个参数可以指定当key 重复的时候值怎么取
final Map<Long，String> keyIdWithPathMap = attachmentInfoResponse.stream().collect(Collections.toMap(AttachmentInfoRespnse::getAssociateKeyId, item -> Optional.of(item.getxxx()).orElse),(v1,v2) -> v1);

https://blog.csdn.net/weixin_44422604/article/details/119888769