1.从github上拉取源码，切换分支到tag 1.8.4
2.下载安装java6 java7 java8 java9 (下不到9，就下11，但是JAVA_9_HOME的环境变量名字不能变)
设置环境变量，并且要设置到path中
3.
4. mvn install -DskipTests=true
5.结果
采坑1
报错
【ERROR】Failed to execute goal org.xolstice.maven.plugins:protobuf-maven-plugin:0.5.1:compile (default) on project pinpoint-grpc: protoc did not exit cleanly.Review output for more information.
maven的版本问题，我用3.5.2就会报这个错。用3.6.1就不会报这个错。
采坑2
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-shade-plugin:3.1.1:shade (default) on project pinpoint-websphere-plugin: Error creating shaded jar: E:\git_repo\pinpoint\plugins\websphere\targ
et\dependency-reduced-pom.xml (拒绝访问。)
问题正在找