private static String resolveMessageBusPath() {
			String xdHome = CommandLinePropertySourceOverridingListener.getCurrentEnvironment().resolvePlaceholders(
					"${XD_HOME}");
			return "file:" + xdHome.replaceAll("\\\\", "/") + "/lib/messagebus/*";
		}
Computes values for (data) --transport for the singlenode case.
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/server/options/ResourcePatternScanningOptionHandlers.java