Duplicate port detected at 2021-03-09 13:33:15.281 Previous connection: java.nio.channels.SocketChannel[connected local=/127.0.0.1:8080 remote=/127.0.0.1:52548] isConnected(): true isOpen(: true Current connection: java.nio.channels.SocketChannel[connected local=/127.0.0.1:8080 remote=/127.0.0.1:52548] isConnected(): true isOpen(: true