java program that starts unix script & then ends

Good morning,
I need to start a unix script from a java program, for this I used
these instructions :

		Runtime rt=Runtime.getRuntime();
		try {
			Process proc=rt.exec("sh /root/scriptTestANDO.sh");
		} catch (IOException e) {
			e.printStackTrace();
		}

it works ok,
but I need that the script still run also if the java program ends,
how I can arrange this ??
Thanks

Antonio
www.etantonio.it/en