In reality, you can't do that with these either. You have to have the runtime installed before your example works. It's really not much better than running a

In reality, you can't do that with these either. You have to have the runtime installed before your example works. It's really not much better than running a fat jar that contains all of its dependencies. curl -o binary.jar http://example.org/binary.jar java -jar binary.jar This is more like a self-extracting shell script, but more opaque.