I would like to stop the process which is running on port 8080 in a Linux server, but I don't know the process that owns it.
'lsof -w -n -i tcp:8080'
'fuser -n tcp 8080'
'netstat -anp | grep :8080[[:blank:]]'
should show you the process ID.
If there is no (init) script to use to shut down the offending service (since TCP/8080 means proxy) to kill you can by PID 'kill -9 pidnumber'.