public void setDefaultBackOffInitialInterval(long defaultBackOffInitialInterval) {
		this.defaultBackOffInitialInterval = defaultBackOffInitialInterval;
	}
Set the default retry back off initial interval for this bus; can be overridden with consumer
'backOffInitialInterval' property.
@param defaultBackOffInitialInterval
spring-xd-messagebus-spi/src/main/java/org/springframework/xd/dirt/integration/bus/MessageBusSupport.java