I think that Win32::Process::Create() with the proper parms will work. Of course your mileage may vary..

But here is rule of thumb to start a "detached process" perl program from another perl program (I use this to start GUI programs without the command window, eg no STDIN, no STDOUT). A key buzz word here is DETACHED_PROCESS. You will have to modify this to get Perl to start a Java app, but this is an idea to work from (or so I hope).

#!/usr/bin/perl -w
use strict;
use Win32;
use Win32::Process;

Win32::Process::Create($Win32::Process::Create::ProcessObj,
  'C:/perl/bin/perl.exe',
  'perl SOMEPROGRAM',
  '0',              #don't inherit file handles
  DETACHED_PROCESS,
  ".")              #CURRENT DIR
or die "some message";
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