One more requirement... cross platform support for killing of an orphaned process. With java.lang.Process (and Apache Commons Exec), there is no way to kill external processes when the Java application does a hard stop (kill -9). I'd really like to find a library that can handle the problem better.
One solution may be to store PIDs in some resource on disk, and then kill the processes on restart of the Java application. Of course, this would be platform dependent, so good a cross platform library would be fantastic.
