Idea debugger 无法启动-unable to open debugger port ， java.net.SocketException "socket closed"

idea debug 突然无法启动,试了多种方法,最后通过修改JMX port (将port数值调大)搞定

 

 

参考资料: https://blog.csdn.net/yhwpeng/article/details/78734100