$kid = open (FH, "java JavaApp | &");
print $kid;

##</code><code>##

$kid = open (FH, "java JavaApp & |");
print $kid;

##</code><code>##

$kid = open (FH, "java JavaApp 2> /dev/null & |");
print $kid;

##</code><code>##

kill 1001
-bash: kill: (1001) - No such process