I have written a shell script to run a service in background and exit from the script to command line. But after running the nohup command, control does not go the next statement.

COMMAND="nohup java -jar jenkins.war"
echo "starting service"
$COMMAND
echo "service running"
exit

echo "service running" and exit never happens. I want to run the process in the background, and return to the command prompt while the service is still running.

I tried resetting the BUILD_ID environment variable. This did not fix the issue.
BUILD_ID=dontKillMe nohup java -jar test.jar &

How to fix this issue?