https://blog.wongcw.com/2020/05/26/80%ef%bc%85-%e7%9a%84oracle-jdk-%e7%94%a8%e6%88%b6%e6%ad%a3%e5%9c%a8%e8%80%83%e6%85%ae%e5%85%b6%e4%bb%96%e6%94%af%e6%8c%81%e9%81%b8%e9%a0%85/