public static String getPropertyDefinition() {
		return "options.timeout.description=The timeout for the slave jobs within this orchestration.  -1 indicates no timeout. \n" +
				"options.timeout.default=-1\n" +
				"options.timeout.type=long";
	}
Throws exception if user tries to create a single job instance with no transitions.
@param definition the definition to be validated
@param jobInstances collection of available job instances
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/job/dsl/ComposedJobUtil.java