@Override
	public void setDateFormat(DateFormat dateFormat) {
		Assert.notNull(dateFormat, "The provided dateFormat must not be null.");
		super.setDateFormat(dateFormat);
	}
Will set the {@link DateFormat} on the underlying {@link DefaultJobParametersConverter}. If not set explicitly,
the {@link DateFormat} will default to {@link TimeUtils#getDefaultDateFormat()}.

@param dateFormat Must not be null
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/plugins/job/ExpandedJobParametersConverter.java