Java Programming

hi,

I am using solaris system on which i have to run JAR file it runs successfully but after sometime it stop working

1> i try by java -jar abc.jar &
it stop working as i close my putty.

2>nohup java -jar abc.jar &
in this case it runs successfully but close after 2 or 3 hours and also make an output file in nohup.out.

3>nohup java -jar abc.jar > /dev/null 2>&1 &

but again it stop after sometime.

Do any one have good suggetion that wat is the best way to run jar file on solaris.

i think in this regard window is best where jar never stop and also we can monitor jar file easily.

any suggetions.

Regards