启动后进入后台，连续点击好几个菜单就报错

Exception in thread "http-nio-8080-exec-3" Exception in thread "http-nio-8080-Acceptor-0" Exception in thread "http-nio-8080-exec-8" Exception in thread "http-nio-8080-exec-6" Exception in thread "http-nio-8080-exec-5" Exception in thread "http-nio-8080-exec-10" Exception in thread "http-nio-8080-exec-2" Disconnected from the target VM, address: '127.0.0.1:57187', transport: 'socket'