OS X Java .app bundle cannot open other apps?

Question

I\'ve written a Java SWT application for OS X, exported it as a .jar and bundled it into .app. Everything works just as expected except for a critical part within my app; it req

Answer 1

I'm answering this myself because the problem was my own setup. Specifically it was the bundled runtime I was using. I wrote a more in-depth answer in my other question here:

Java on OS X: “open” command won't run if .app package contains a JVM bundle

Answer 2

If steam: is a registered URL type, you can use org.eclipse.swt.program.Program#launch(String). For example:

org.eclipse.swt.program.Program.launch("steam://rungameid/57300//");