private void setValueInModuleConfigFiles(boolean active, String version) {
		if (active) {
			System.setProperty("xd.module.config.location",
					"classpath:/ModuleOptionsDefaultsOrderingTests-module-config-" + version + "/");
			System.setProperty("xd.module.config.name", "test-xd-module-config");
		}
	}
Make sure to cleanup after ourselves as some of the stuff is per-JVM.
spring-xd-dirt/src/test/java/org/springframework/xd/dirt/stream/ModuleOptionsDefaultsOrderingTests.java