[java-dev] Running a Jar executable

I have looked around the forum and I could not really find this. I need a way to open a jar executable (a simple swing app) . For instance. I want just a simple class which extends MaxObject (obviously) that has one "bang" input which opens up a jar executable of a swing java application I wrote. Should I try to use something like Runtime.exec()? Also, I have written small swing interfaces using Max before and I remember having to use SwingUtilities.invokeLater(), will I have to incorporate this as well.