Application Server was not connected before run configuration stop, reason: Unable to ping server at

Application Server was not connected before run configuration stop, reason: Unable to ping server at localhost:1099

运行idea中的tomcat报错

不是1099端口占用错误，也不是JRE路径错误

是我用的tomcat9和jdk1.7不兼容导致

解决办法：更换高版本jdk或者低版本tomcat