One solution (a little awkward) is to keep a warmed-up JVM in the background, and have your scripts send the arguments to it. Some trouble to setup, and of cou

One solution (a little awkward) is to keep a warmed-up JVM in the background, and have your scripts send the arguments to it. Some trouble to setup, and of course the send-code can't be in Java... but it is lightening fast. I'm not sure why this isn't a more common practice: if there was a standard server and (non-java) client, it wouldn't be awkward.