Tomcat Debug Error: Unable to open debugger port (127.0.0.1:63199): java.net.BindException "Address already in use: NET_Bind"

Question

I woke up for work and started receiving this error, but I can't find this specific error anywhere.

I tried using netstat -ano to find any instances running on the aformentioned port, and also the ports I run Tomcat on:

HTTP port: 8090 JMX port: 1099

But no processes are running on any of the three ports. Any ideas?

Chambermaid

Have you checked the 63199 port? Try restarting the PC. Check also this thread for solutions. – Copulation

@Copulation I have looked for the port via netstat. I followed you link and took the TCPView software from the top of the list and none of the ports listed in my post appear on this list. – Chambermaid

I can't seem to find a stack trace of this exception in the Jetbrain Directory or the Intellij Directory. How can I find a more comprehensive read out of this issue? – Chambermaid

if you have installed any anti-virus, disable it and try once. -ibm.com/developerworks/community/forums/html/… – Barragan

Answer 1

Oh,my! This helps me a lot

// run cmd as administator
net stop winnat
net start winnat

Before,I have tried this,but it doesn't work

ipconfig /flushdns
netsh winsock reset

Goldplate

I did not closed my IDEA and it worked. – Retrospect

Worked on IDEA 2021.3.3 and tomcat 9 debugging – Blaubok

It usually is not necessary to close your intelij. Still a great solution – Path

thanks,I have updated my answer. delete the step : restart your ide – Goldplate

Stopping and starting winnat worked for me. IDEA 2023.3.4 debugging Tomcat 10. Thank you!! – Stupidity

Answer 2

As for me,the problem begin when i use idea to debug my web application. Then i find where the port configured and change to another port.

Tachygraphy

This works for me. Just change the port number. E.g. to 59072. – Rasure

Answer 3

this link might be helpful

net stop winnat

launch your idea tomcat

net start winnat

Gefell

Answer 4

Restart your Idea. It works for me.

Previously, I tried: net stop winnat. But not working. I got received the message:
"El servicio de Controlador de Windows NAT no se ha iniciado. Puede obtener más ayuda con el comando NET HELPMSG 3521."

Sorry for my English (fix me please)

Backler