Hutool是一个小而全的Java工具类库，通过静态方法封装，降低相关API的学习成本，提高工作效率，使Java拥有函数式语言般的优雅，让Java语言也可以“甜甜的”。

Fastjson is a JSON processor (JSON parser + JSON generator) written in Java

The AWS Java SDK for Amazon S3 module holds the client classes that are used for communicating with

Lombok is a Java library that provides annotations to simplify Java development by automating the generation of ...

JUnit Jupiter is the API for writing tests using JUnit 5.

JUnit Jupiter is the API for writing tests using JUnit 5.

Module "junit-jupiter" of JUnit