I installed tomcat 5.0 in linux 9.0 , when i start the
server i got a error message port already in use.

I dont have any other server other then apache-httpd
that too in port 80.

When i debug the catalina it shows error at "exec
CATALINA_OPTS and JAVA_OPTS" .

I used netsysv to find any other service running in
that port but it didn't help me.

please give yur sugesstion to identify the error.