IDEA下载依赖时提示 resolving dependencies of xxx, yyy ,卡住不动 使用Maven命令可以更清楚地分析问题,在IDEA命令行窗口执行mvn compile命令,提示: [ERROR] 'dependencies.dependency.systemPath' for jdk.tools:jdk.tools:jar must specify an absolute path but is ${JAVA_HOME}/lib/tools.jar @ line 160