The POM for xxx is invalid, transitive dependencies (if any) will not be available

编译maven项目时，输出下面警告日志：

The POM for com.alibaba:druid:jar:1.1.20 is invalid, transitive dependencies (if any) will not be available, enable debug logging for more details

解决的方法是，设置JAVA_HOME系统环境变量。

参考：

https://stackoverflow.com/questions/26393332/getting-the-pom-for-name-is-invalid-transitive-dependencies-if-any-will-no