4.0.0 cn.wustlinghang.wusthelper wusthelper-backend ${revision} sub-services pom graduate library physics undergrad 17 17 UTF-8 cn.wustlinghang.mywust mywust-core ${mywust.version} cn.wustlinghang.mywust mywust-network-okhttp ${mywust.version} cn.wustlinghang.wusthelper common ${revision}