quote java2 源码

安装Open JDK 15 1. https://jdk.java.net/ 2. download tar file. unzip it and copy it to : /Library/Java/JavaVirtualMachines 3. check java 15 availability in you local machine terminal> /usr/libexec/java_home -v15 /Library/Java/JavaVirtualMachines/jdk-15.0.2.jdk/Contents/Home 4. export path in any of t