I was using apache tomcat earlier ,
but I unistalled it last week .........and it used to work fine
17:08:25,481 INFO [Http11Protocol] Starting Coyote HTTP/1.1 on http-127.0.0.1-8080
no , I don't have any firewall.......
also apache was working fine earlier..........till last week........
also , there is no firewall configured in ubuntu by default ,
It have iptable , but its not configured , so its disabled .
moreover , apache was working fine earlier at this port .......
http://127.0.0.1:8080/
doesn't work .....
I compiled the source code again ,
and it worked now ......
THnaks for the help