can anyone tell me why this works:

#!/usr/bin/perl

my $pid = open(my $fh, "java -classpath /Users/allasso/AWS/utility/too
+ls_additional/SC_add/java TextEntry |")
    or die "Couldn't launch: $! / $?";
    
print "pid: $pid\n\ndoing stuff...\n\npress return to exit script...\n
+\n";

<STDIN>;

if ($pid) {
    kill 9 => $pid; # bang
};
[download]

and this doesn't (hangs - can't exit script until java app is closed):

#!/usr/bin/perl

my $pid = open(my $fh, "java -classpath /Users/allasso/AWS/utility/too
+ls_additional/SC_add/java TextEntry |")
    or die "Couldn't launch: $! / $?";
    
END {
    if ($pid) {
        kill 9 => $pid; # bang
    };
};

print "pid: $pid\n\ndoing stuff...\n\npress return to exit script...\n
+\n";

<STDIN>;
[download]

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