After stopping JobScheduler the TCP port should be closed immediately

After stopping the JobScheduler with JOC or with the startscript (both calls the command "<modify_spooler cmd='terminate'/>"):

./bin/jobscheduler.sh stop

then the tcp port is not closed immediately.

netstat -na | grep 4444
tcp        0      0 127.0.0.1:44824         127.0.0.1:4444          TIME_WAIT   
tcp        0      0 127.0.0.1:44825         127.0.0.1:4444          TIME_WAIT

The port are closed after the net.ipv4.tcp_fin_timeout settings in /etc/sysctl.conf