【问题】:Application Server was not connected before run configuration stop, reason:java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.CommunicationException [Root exception is java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is: java.net.SocketException: Connection reset]
【解决】:Tomcat的配置文件出了问题,在Tomcat官网https://tomcat.apache.org/download-90.cgi重新下载Tomcat,替换旧的Tomcat即可。