Thread: init.d bootup how to run .jar containing infinite loop

i've requirement of executing jar file containing endless loop, should start executing when server boot , should continue executing until server halt.

created file named "bu" containing

#!/bin/sh
java -jar /home/samara/nano/bu.jar

@ /etc/init.d

, created link script at: /etc/rc2.d
using code:
sudo ln -s /etc/init.d/bu /etc/rc2.d/s90bu

chmod file : sudo chmod 755 /etc/init.d/bu

rebooted using: sudo reboot
==========================
when server boot-up
displays console output of jar file every loop execution.

need script running separate thread in cpu , boot system
starting apache2 on boot-up

appreciated.

i think found solution
added "&" @ end of script
server start , file executing no problem
new script looks exactly:

#!/bin/sh
java -jar /home/samara/nano/bu.jar &

if there way better please let me learn that.

thank you.

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